Incremental progress for plugins reorg

Jordan Cheney
1 parent f645840e
Showing 113 changed files with 5111 additions and 4674 deletions
openbr/plugins/ebif.cpp → openbr/plugins/classification/ebif.cpp
openbr/plugins/cluster/collectnn.cpp
openbr/plugins/cluster/kmeans.cpp
openbr/plugins/cluster.cpp → openbr/plugins/cluster/knn.cpp
openbr/plugins/cluster/lognn.cpp
openbr/plugins/cluster/randomcentroids.cpp
openbr/plugins/algorithms.cpp → openbr/plugins/core/algorithms.cpp
openbr/plugins/independent.cpp → openbr/plugins/core/downsample.cpp
openbr/plugins/core/independent.cpp
openbr/plugins/core/singleton.cpp
openbr/plugins/crop.cpp
openbr/plugins/cvt.cpp
openbr/plugins/cascade.cpp → openbr/plugins/detection/cascade.cpp
openbr/plugins/eyes.cpp → openbr/plugins/detection/eyes.cpp
openbr/plugins/detection/keypointdetector.cpp
openbr/plugins/distance.cpp
openbr/plugins/distance/L2.cpp
openbr/plugins/distance/attribute.cpp
openbr/plugins/distance/byteL1.cpp
openbr/plugins/distance/default.cpp
 #include <opencv2/imgproc/imgproc.hpp>
  
-#include "openbr_internal.h"
-#include "openbr/core/common.h"
-#include "openbr/core/opencvutils.h"
+#include <openbr/plugins/openbr_internal.h>
+#include <openbr/core/common.h>
+#include <openbr/core/opencvutils.h>
  
 using namespace cv;
  
+#include <openbr/plugins/openbr_internal.h>
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Collect nearest neighbors and append them to metadata.
+ * \author Charles Otto \cite caotto
+ */
+class CollectNNTransform : public UntrainableMetaTransform
+{
+    Q_OBJECT
+
+    Q_PROPERTY(int keep READ get_keep WRITE set_keep RESET reset_keep STORED false)
+    BR_PROPERTY(int, keep, 20)
+
+    void project(const Template &src, Template &dst) const
+    {
+        dst.file = src.file;
+        dst.clear();
+        dst.m() = cv::Mat();
+        Neighbors neighbors;
+        for (int i=0; i < src.m().cols;i++) {
+            // skip self compares
+            if (i == src.file.get<int>("FrameNumber"))
+                continue;
+            neighbors.append(Neighbor(i, src.m().at<float>(0,i)));
+        }
+        int actuallyKeep = std::min(keep, neighbors.size());
+        std::partial_sort(neighbors.begin(), neighbors.begin()+actuallyKeep, neighbors.end(), compareNeighbors);
+
+        Neighbors selected = neighbors.mid(0, actuallyKeep);
+        dst.file.set("neighbors", QVariant::fromValue(selected));
+    }
+};
+
+BR_REGISTER(Transform, CollectNNTransform)
+
+} // namespace br
+
+#include "collectnn.moc"
+#include <opencv2/flann/flann.hpp>
+
+#include <openbr/plugins/openbr_internal.h>
+#include <openbr/core/opencvutils.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Wraps OpenCV kmeans and flann.
+ * \author Josh Klontz \cite jklontz
+ */
+class KMeansTransform : public Transform
+{
+    Q_OBJECT
+    Q_PROPERTY(int kTrain READ get_kTrain WRITE set_kTrain RESET reset_kTrain STORED false)
+    Q_PROPERTY(int kSearch READ get_kSearch WRITE set_kSearch RESET reset_kSearch STORED false)
+    BR_PROPERTY(int, kTrain, 256)
+    BR_PROPERTY(int, kSearch, 1)
+
+    Mat centers;
+    mutable QScopedPointer<flann::Index> index;
+    mutable QMutex mutex;
+
+    void reindex()
+    {
+        index.reset(new flann::Index(centers, flann::LinearIndexParams()));
+    }
+
+    void train(const TemplateList &data)
+    {
+        Mat bestLabels;
+        const double compactness = kmeans(OpenCVUtils::toMatByRow(data.data()), kTrain, bestLabels, TermCriteria(TermCriteria::MAX_ITER, 10, 0), 3, KMEANS_PP_CENTERS, centers);
+        qDebug("KMeans compactness = %f", compactness);
+        reindex();
+    }
+
+    void project(const Template &src, Template &dst) const
+    {
+        QMutexLocker locker(&mutex);
+        Mat dists, indicies;
+        index->knnSearch(src, indicies, dists, kSearch);
+        dst = indicies.reshape(1, 1);
+    }
+
+    void load(QDataStream &stream)
+    {
+        stream >> centers;
+        reindex();
+    }
+
+    void store(QDataStream &stream) const
+    {
+        stream << centers;
+    }
+};
+
+BR_REGISTER(Transform, KMeansTransform)
+
+} // namespace br
+
+#include "kmeans.moc"
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
- * Copyright 2012 The MITRE Corporation                                      *
- *                                                                           *
- * Licensed under the Apache License, Version 2.0 (the "License");           *
- * you may not use this file except in compliance with the License.          *
- * You may obtain a copy of the License at                                   *
- *                                                                           *
- *     http://www.apache.org/licenses/LICENSE-2.0                            *
- *                                                                           *
- * Unless required by applicable law or agreed to in writing, software       *
- * distributed under the License is distributed on an "AS IS" BASIS,         *
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  *
- * See the License for the specific language governing permissions and       *
- * limitations under the License.                                            *
- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-#include <opencv2/flann/flann.hpp>
-
-#include "openbr_internal.h"
-#include "openbr/core/common.h"
-#include "openbr/core/opencvutils.h"
-#include <fstream>
+#include <openbr/plugins/openbr_internal.h>
+#include <openbr/core/common.h>
  
 using namespace cv;
  
@@ -28,58 +8,6 @@ namespace br
  
 /*!
  * \ingroup transforms
- * \brief Wraps OpenCV kmeans and flann.
- * \author Josh Klontz \cite jklontz
- */
-class KMeansTransform : public Transform
-{
-    Q_OBJECT
-    Q_PROPERTY(int kTrain READ get_kTrain WRITE set_kTrain RESET reset_kTrain STORED false)
-    Q_PROPERTY(int kSearch READ get_kSearch WRITE set_kSearch RESET reset_kSearch STORED false)
-    BR_PROPERTY(int, kTrain, 256)
-    BR_PROPERTY(int, kSearch, 1)
-
-    Mat centers;
-    mutable QScopedPointer<flann::Index> index;
-    mutable QMutex mutex;
-
-    void reindex()
-    {
-        index.reset(new flann::Index(centers, flann::LinearIndexParams()));
-    }
-
-    void train(const TemplateList &data)
-    {
-        Mat bestLabels;
-        const double compactness = kmeans(OpenCVUtils::toMatByRow(data.data()), kTrain, bestLabels, TermCriteria(TermCriteria::MAX_ITER, 10, 0), 3, KMEANS_PP_CENTERS, centers);
-        qDebug("KMeans compactness = %f", compactness);
-        reindex();
-    }
-
-    void project(const Template &src, Template &dst) const
-    {
-        QMutexLocker locker(&mutex);
-        Mat dists, indicies;
-        index->knnSearch(src, indicies, dists, kSearch);
-        dst = indicies.reshape(1, 1);
-    }
-
-    void load(QDataStream &stream)
-    {
-        stream >> centers;
-        reindex();
-    }
-
-    void store(QDataStream &stream) const
-    {
-        stream << centers;
-    }
-};
-
-BR_REGISTER(Transform, KMeansTransform)
-
-/*!
- * \ingroup transforms
  * \brief K nearest neighbors classifier.
  * \author Josh Klontz \cite jklontz
  */
@@ -151,148 +79,6 @@ class KNNTransform : public Transform
  
 BR_REGISTER(Transform, KNNTransform)
  
-/*!
- * \ingroup transforms
- * \brief Chooses k random points to be centroids.
- * \author Austin Blanton \cite imaus10
- * \see KMeansTransform
- */
-class RandomCentroidsTransform : public Transform
-{
-    Q_OBJECT
-    Q_PROPERTY(int kTrain READ get_kTrain WRITE set_kTrain RESET reset_kTrain STORED false)
-    Q_PROPERTY(int kSearch READ get_kSearch WRITE set_kSearch RESET reset_kSearch STORED false)
-    BR_PROPERTY(int, kTrain, 256)
-    BR_PROPERTY(int, kSearch, 1)
-
-    Mat centers;
-    mutable QScopedPointer<flann::Index> index;
-    mutable QMutex mutex;
-
-    void reindex()
-    {
-        index.reset(new flann::Index(centers, flann::LinearIndexParams()));
-    }
-
-    void train(const TemplateList &data)
-    {
-        Mat flat = OpenCVUtils::toMatByRow(data.data());
-        QList<int> sample = Common::RandSample(kTrain, flat.rows, 0, true);
-        foreach (const int &idx, sample)
-            centers.push_back(flat.row(idx));
-        reindex();
-    }
-
-    void project(const Template &src, Template &dst) const
-    {
-        QMutexLocker locker(&mutex);
-        Mat dists, indicies;
-        index->knnSearch(src, indicies, dists, kSearch);
-        dst = indicies.reshape(1, 1);
-    }
-
-    void load(QDataStream &stream)
-    {
-        stream >> centers;
-        reindex();
-    }
-
-    void store(QDataStream &stream) const
-    {
-        stream << centers;
-    }
-};
-
-BR_REGISTER(Transform, RandomCentroidsTransform)
-
-class RegInitializer : public Initializer
-{
-    Q_OBJECT
-
-    void initialize() const
-    {
-        qRegisterMetaType<br::Neighbors>();
-    }
-};
-BR_REGISTER(Initializer, RegInitializer)
-
-class CollectNNTransform : public UntrainableMetaTransform
-{
-    Q_OBJECT
-
-    Q_PROPERTY(int keep READ get_keep WRITE set_keep RESET reset_keep STORED false)
-    BR_PROPERTY(int, keep, 20)
-
-    void project(const Template &src, Template &dst) const
-    {
-        dst.file = src.file;
-        dst.clear();
-        dst.m() = cv::Mat();
-        Neighbors neighbors;
-        for (int i=0; i < src.m().cols;i++) {
-            // skip self compares
-            if (i == src.file.get<int>("FrameNumber"))
-                continue;
-            neighbors.append(Neighbor(i, src.m().at<float>(0,i)));
-        }
-        int actuallyKeep = std::min(keep, neighbors.size());
-        std::partial_sort(neighbors.begin(), neighbors.begin()+actuallyKeep, neighbors.end(), compareNeighbors);
-
-        Neighbors selected = neighbors.mid(0, actuallyKeep);
-        dst.file.set("neighbors", QVariant::fromValue(selected));
-    }
-};
-BR_REGISTER(Transform, CollectNNTransform)
-
-class LogNNTransform : public TimeVaryingTransform
-{
-    Q_OBJECT
-
-    Q_PROPERTY(QString fileName READ get_fileName WRITE set_fileName RESET reset_fileName STORED false)
-    BR_PROPERTY(QString, fileName, "")
-
-    std::fstream fout;
-
-    void projectUpdate(const Template &src, Template &dst)
-    {
-        dst = src;
-
-        if (!dst.file.contains("neighbors")) {
-            fout << std::endl;
-            return;
-        }
-
-        Neighbors neighbors = dst.file.get<Neighbors>("neighbors");
-        if (neighbors.isEmpty() ) {
-            fout << std::endl;
-            return;
-        }
-
-        QString aLine;
-        aLine.append(QString::number(neighbors[0].first)+":"+QString::number(neighbors[0].second));
-        for (int i=1; i < neighbors.size();i++)
-            aLine.append(","+QString::number(neighbors[i].first)+":"+QString::number(neighbors[i].second));
-
-        fout << qPrintable(aLine) << std::endl;
-    }
-
-    void init()
-    {
-        if (!fileName.isEmpty())
-            fout.open(qPrintable(fileName), std::ios_base::out);
-    }
-
-    void finalize(TemplateList &output)
-    {
-        (void) output;
-        fout.close();
-    }
-
-public:
-    LogNNTransform() : TimeVaryingTransform(false, false) {}
-};
-BR_REGISTER(Transform, LogNNTransform)
-
 } // namespace br
  
-#include "cluster.moc"
+#include "knn.moc"
+#include <fstream>
+
+#include <openbr/plugins/openbr_internal.h>
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Log nearest neighbors to specified file.
+ * \author Charles Otto \cite caotto
+ */
+class LogNNTransform : public TimeVaryingTransform
+{
+    Q_OBJECT
+
+    Q_PROPERTY(QString fileName READ get_fileName WRITE set_fileName RESET reset_fileName STORED false)
+    BR_PROPERTY(QString, fileName, "")
+
+    std::fstream fout;
+
+    void projectUpdate(const Template &src, Template &dst)
+    {
+        dst = src;
+
+        if (!dst.file.contains("neighbors")) {
+            fout << std::endl;
+            return;
+        }
+
+        Neighbors neighbors = dst.file.get<Neighbors>("neighbors");
+        if (neighbors.isEmpty() ) {
+            fout << std::endl;
+            return;
+        }
+
+        QString aLine;
+        aLine.append(QString::number(neighbors[0].first)+":"+QString::number(neighbors[0].second));
+        for (int i=1; i < neighbors.size();i++)
+            aLine.append(","+QString::number(neighbors[i].first)+":"+QString::number(neighbors[i].second));
+
+        fout << qPrintable(aLine) << std::endl;
+    }
+
+    void init()
+    {
+        if (!fileName.isEmpty())
+            fout.open(qPrintable(fileName), std::ios_base::out);
+    }
+
+    void finalize(TemplateList &output)
+    {
+        (void) output;
+        fout.close();
+    }
+
+public:
+    LogNNTransform() : TimeVaryingTransform(false, false) {}
+};
+
+BR_REGISTER(Transform, LogNNTransform)
+
+} // namespace br
+
+#include "lognn.moc"
+#include <opencv2/flann/flann.hpp>
+
+#include <openbr/plugins/openbr_internal.h>
+#include <openbr/core/common.h>
+#include <openbr/core/opencvutils.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Chooses k random points to be centroids.
+ * \author Austin Blanton \cite imaus10
+ * \see KMeansTransform
+ */
+class RandomCentroidsTransform : public Transform
+{
+    Q_OBJECT
+    Q_PROPERTY(int kTrain READ get_kTrain WRITE set_kTrain RESET reset_kTrain STORED false)
+    Q_PROPERTY(int kSearch READ get_kSearch WRITE set_kSearch RESET reset_kSearch STORED false)
+    BR_PROPERTY(int, kTrain, 256)
+    BR_PROPERTY(int, kSearch, 1)
+
+    Mat centers;
+    mutable QScopedPointer<flann::Index> index;
+    mutable QMutex mutex;
+
+    void reindex()
+    {
+        index.reset(new flann::Index(centers, flann::LinearIndexParams()));
+    }
+
+    void train(const TemplateList &data)
+    {
+        Mat flat = OpenCVUtils::toMatByRow(data.data());
+        QList<int> sample = Common::RandSample(kTrain, flat.rows, 0, true);
+        foreach (const int &idx, sample)
+            centers.push_back(flat.row(idx));
+        reindex();
+    }
+
+    void project(const Template &src, Template &dst) const
+    {
+        QMutexLocker locker(&mutex);
+        Mat dists, indicies;
+        index->knnSearch(src, indicies, dists, kSearch);
+        dst = indicies.reshape(1, 1);
+    }
+
+    void load(QDataStream &stream)
+    {
+        stream >> centers;
+        reindex();
+    }
+
+    void store(QDataStream &stream) const
+    {
+        stream << centers;
+    }
+};
+
+BR_REGISTER(Transform, RandomCentroidsTransform)
+
+} //namespace br
+
+#include "randomcentroids.moc"
@@ -14,7 +14,7 @@
  * limitations under the License.                                            *
  * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
  
-#include "openbr_internal.h"
+#include <openbr/plugins/openbr_internal.h>
  
 namespace br
 {
-#include <QFutureSynchronizer>
-#include <QtConcurrentRun>
-
-#include "openbr_internal.h"
-#include "openbr/core/common.h"
-
-using namespace cv;
+#include <openbr/plugins/openbr_internal.h>
  
 namespace br
 {
@@ -103,10 +97,10 @@ class DownsampleTrainingTransform : public Transform
  
     void project(const Template &src, Template &dst) const
     {
-       transform->project(src,dst);      
+       transform->project(src,dst);
     }
-  
-	  
+
+
     void train(const TemplateList &data)
     {
         if (!transform || !transform->trainable)
@@ -117,274 +111,9 @@ class DownsampleTrainingTransform : public Transform
         transform->train(downsampled);
     }
 };
-BR_REGISTER(Transform, DownsampleTrainingTransform)
-
-/*!
- * \ingroup transforms
- * \brief Clones the transform so that it can be applied independently.
- * \author Josh Klontz \cite jklontz
- * \em Independent transforms expect single-matrix templates.
- */
-class IndependentTransform : public MetaTransform
-{
-    Q_OBJECT
-    Q_PROPERTY(br::Transform* transform READ get_transform WRITE set_transform RESET reset_transform STORED false)
-    BR_PROPERTY(br::Transform*, transform, NULL)
-
-    QList<Transform*> transforms;
-
-    QString description(bool expanded) const
-    {
-        return transform->description(expanded);
-    }
-
-    // can't use general setPropertyRecursive because of transforms oddness
-    bool setPropertyRecursive(const QString &name, QVariant value)
-    {
-        if (br::Object::setExistingProperty(name, value))
-            return true;
-
-        if (!transform->setPropertyRecursive(name, value))
-            return false;
-
-        for (int i=0;i < transforms.size();i++)
-            transforms[i]->setPropertyRecursive(name, value);
-
-        return true;
-    }
-
-    Transform *simplify(bool &newTransform)
-    {
-        newTransform = false;
-        bool newChild = false;
-        Transform *temp = transform->simplify(newChild);
-        if (temp == transform) {
-            return this;
-        }
-        IndependentTransform* indep = new IndependentTransform();
-        indep->transform = temp;
-
-        IndependentTransform *test = dynamic_cast<IndependentTransform *> (temp);
-        if (test) {
-            // child was independent? this changes things...
-            indep->transform = test->transform;
-            for (int i=0; i < transforms.size(); i++) {
-                bool newThing = false;
-                IndependentTransform *probe = dynamic_cast<IndependentTransform *> (transforms[i]->simplify(newThing));
-                indep->transforms.append(probe->transform);
-                if (newThing)
-                    probe->setParent(indep);
-            }
-            indep->file = indep->transform->file;
-            indep->trainable = indep->transform->trainable;
-            indep->setObjectName(indep->transform->objectName());
-
-            return indep;
-        }
-
-        if (newChild)
-            indep->transform->setParent(indep);
-
-        for (int i=0; i < transforms.size();i++) {
-            bool subTform = false;
-            indep->transforms.append(transforms[i]->simplify(subTform));
-            if (subTform)
-                indep->transforms[i]->setParent(indep);
-        }
  
-        indep->file = indep->transform->file;
-        indep->trainable = indep->transform->trainable;
-        indep->setObjectName(indep->transform->objectName());
-
-        return indep;
-    }
-
-    void init()
-    {
-        transforms.clear();
-        if (transform == NULL)
-            return;
-
-        transform->setParent(this);
-        transforms.append(transform);
-        file = transform->file;
-        trainable = transform->trainable;
-        setObjectName(transform->objectName());
-    }
-
-    Transform *clone() const
-    {
-        IndependentTransform *independentTransform = new IndependentTransform();
-        independentTransform->transform = transform->clone();
-        independentTransform->init();
-        return independentTransform;
-    }
-
-    bool timeVarying() const { return transform->timeVarying(); }
-
-    static void _train(Transform *transform, const TemplateList *data)
-    {
-        transform->train(*data);
-    }
-
-    void train(const TemplateList &data)
-    {
-        // Don't bother if the transform is untrainable
-        if (!trainable) return;
-
-        QList<TemplateList> templatesList;
-        foreach (const Template &t, data) {
-            if ((templatesList.size() != t.size()) && !templatesList.isEmpty())
-                qWarning("Independent::train (%s) template %s of size %d differs from expected size %d.", qPrintable(objectName()), qPrintable(t.file.name), t.size(), templatesList.size());
-            while (templatesList.size() < t.size())
-                templatesList.append(TemplateList());
-            for (int i=0; i<t.size(); i++)
-                templatesList[i].append(Template(t.file, t[i]));
-        }
-
-        while (transforms.size() < templatesList.size())
-            transforms.append(transform->clone());
-
-        QFutureSynchronizer<void> futures;
-        for (int i=0; i<templatesList.size(); i++)
-            futures.addFuture(QtConcurrent::run(_train, transforms[i], &templatesList[i]));
-        futures.waitForFinished();
-    }
-
-    void project(const Template &src, Template &dst) const
-    {
-        dst.file = src.file;
-        QList<Mat> mats;
-        for (int i=0; i<src.size(); i++) {
-            transforms[i%transforms.size()]->project(Template(src.file, src[i]), dst);
-            mats.append(dst);
-            dst.clear();
-        }
-        dst.append(mats);
-    }
-
-    void projectUpdate(const Template &src, Template &dst)
-    {
-        dst.file = src.file;
-        QList<Mat> mats;
-        for (int i=0; i<src.size(); i++) {
-            transforms[i%transforms.size()]->projectUpdate(Template(src.file, src[i]), dst);
-            mats.append(dst);
-            dst.clear();
-        }
-        dst.append(mats);
-    }
-
-    void finalize(TemplateList &out)
-    {
-        if (transforms.empty())
-            return;
-
-        transforms[0]->finalize(out);
-        for (int i=1; i < transforms.size(); i++) {
-            TemplateList temp;
-            transforms[i]->finalize(temp);
-
-            for (int j=0; j < out.size(); j++)
-                out[j].append(temp[j]);
-        }
-    }
-
-    void projectUpdate(const TemplateList &src, TemplateList &dst)
-    {
-        dst.reserve(src.size());
-        foreach (const Template &t, src) {
-            dst.append(Template());
-            projectUpdate(t, dst.last());
-        }
-    }
-
-    void store(QDataStream &stream) const
-    {
-        const int size = transforms.size();
-        stream << size;
-        for (int i=0; i<size; i++)
-            transforms[i]->store(stream);
-    }
-
-    void load(QDataStream &stream)
-    {
-        int size;
-        stream >> size;
-        while (transforms.size() < size)
-            transforms.append(transform->clone());
-        for (int i=0; i<size; i++)
-            transforms[i]->load(stream);
-    }
-};
-
-BR_REGISTER(Transform, IndependentTransform)
-
-/*!
- * \ingroup transforms
- * \brief A globally shared transform.
- * \author Josh Klontz \cite jklontz
- */
-class SingletonTransform : public MetaTransform
-{
-    Q_OBJECT
-    Q_PROPERTY(QString description READ get_description WRITE set_description RESET reset_description STORED false)
-    BR_PROPERTY(QString, description, "Identity")
-
-    static QMutex mutex;
-    static QHash<QString,Transform*> transforms;
-    static QHash<QString,int> trainingReferenceCounts;
-    static QHash<QString,TemplateList> trainingData;
-
-    Transform *transform;
-
-    void init()
-    {
-        QMutexLocker locker(&mutex);
-        if (!transforms.contains(description)) {
-            transforms.insert(description, make(description));
-            trainingReferenceCounts.insert(description, 0);
-        }
-
-        transform = transforms[description];
-        trainingReferenceCounts[description]++;
-    }
-
-    void train(const TemplateList &data)
-    {
-        QMutexLocker locker(&mutex);
-        trainingData[description].append(data);
-        trainingReferenceCounts[description]--;
-        if (trainingReferenceCounts[description] > 0) return;
-        transform->train(trainingData[description]);
-        trainingData[description].clear();
-    }
-
-    void project(const Template &src, Template &dst) const
-    {
-        transform->project(src, dst);
-    }
-
-    void store(QDataStream &stream) const
-    {
-        if (transform->parent() == this)
-            transform->store(stream);
-    }
-
-    void load(QDataStream &stream)
-    {
-        if (transform->parent() == this)
-            transform->load(stream);
-    }
-};
-
-QMutex SingletonTransform::mutex;
-QHash<QString,Transform*> SingletonTransform::transforms;
-QHash<QString,int> SingletonTransform::trainingReferenceCounts;
-QHash<QString,TemplateList> SingletonTransform::trainingData;
-
-BR_REGISTER(Transform, SingletonTransform)
+BR_REGISTER(Transform, DownsampleTrainingTransform)
  
 } // namespace br
  
-#include "independent.moc"
+#include "downsample.moc"
+#include <QtConcurrent>
+
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Clones the transform so that it can be applied independently.
+ * \author Josh Klontz \cite jklontz
+ * \em Independent transforms expect single-matrix templates.
+ */
+class IndependentTransform : public MetaTransform
+{
+    Q_OBJECT
+    Q_PROPERTY(br::Transform* transform READ get_transform WRITE set_transform RESET reset_transform STORED false)
+    BR_PROPERTY(br::Transform*, transform, NULL)
+
+    QList<Transform*> transforms;
+
+    QString description(bool expanded) const
+    {
+        return transform->description(expanded);
+    }
+
+    // can't use general setPropertyRecursive because of transforms oddness
+    bool setPropertyRecursive(const QString &name, QVariant value)
+    {
+        if (br::Object::setExistingProperty(name, value))
+            return true;
+
+        if (!transform->setPropertyRecursive(name, value))
+            return false;
+
+        for (int i=0;i < transforms.size();i++)
+            transforms[i]->setPropertyRecursive(name, value);
+
+        return true;
+    }
+
+    Transform *simplify(bool &newTransform)
+    {
+        newTransform = false;
+        bool newChild = false;
+        Transform *temp = transform->simplify(newChild);
+        if (temp == transform) {
+            return this;
+        }
+        IndependentTransform* indep = new IndependentTransform();
+        indep->transform = temp;
+
+        IndependentTransform *test = dynamic_cast<IndependentTransform *> (temp);
+        if (test) {
+            // child was independent? this changes things...
+            indep->transform = test->transform;
+            for (int i=0; i < transforms.size(); i++) {
+                bool newThing = false;
+                IndependentTransform *probe = dynamic_cast<IndependentTransform *> (transforms[i]->simplify(newThing));
+                indep->transforms.append(probe->transform);
+                if (newThing)
+                    probe->setParent(indep);
+            }
+            indep->file = indep->transform->file;
+            indep->trainable = indep->transform->trainable;
+            indep->setObjectName(indep->transform->objectName());
+
+            return indep;
+        }
+
+        if (newChild)
+            indep->transform->setParent(indep);
+
+        for (int i=0; i < transforms.size();i++) {
+            bool subTform = false;
+            indep->transforms.append(transforms[i]->simplify(subTform));
+            if (subTform)
+                indep->transforms[i]->setParent(indep);
+        }
+
+        indep->file = indep->transform->file;
+        indep->trainable = indep->transform->trainable;
+        indep->setObjectName(indep->transform->objectName());
+
+        return indep;
+    }
+
+    void init()
+    {
+        transforms.clear();
+        if (transform == NULL)
+            return;
+
+        transform->setParent(this);
+        transforms.append(transform);
+        file = transform->file;
+        trainable = transform->trainable;
+        setObjectName(transform->objectName());
+    }
+
+    Transform *clone() const
+    {
+        IndependentTransform *independentTransform = new IndependentTransform();
+        independentTransform->transform = transform->clone();
+        independentTransform->init();
+        return independentTransform;
+    }
+
+    bool timeVarying() const { return transform->timeVarying(); }
+
+    static void _train(Transform *transform, const TemplateList *data)
+    {
+        transform->train(*data);
+    }
+
+    void train(const TemplateList &data)
+    {
+        // Don't bother if the transform is untrainable
+        if (!trainable) return;
+
+        QList<TemplateList> templatesList;
+        foreach (const Template &t, data) {
+            if ((templatesList.size() != t.size()) && !templatesList.isEmpty())
+                qWarning("Independent::train (%s) template %s of size %d differs from expected size %d.", qPrintable(objectName()), qPrintable(t.file.name), t.size(), templatesList.size());
+            while (templatesList.size() < t.size())
+                templatesList.append(TemplateList());
+            for (int i=0; i<t.size(); i++)
+                templatesList[i].append(Template(t.file, t[i]));
+        }
+
+        while (transforms.size() < templatesList.size())
+            transforms.append(transform->clone());
+
+        QFutureSynchronizer<void> futures;
+        for (int i=0; i<templatesList.size(); i++)
+            futures.addFuture(QtConcurrent::run(_train, transforms[i], &templatesList[i]));
+        futures.waitForFinished();
+    }
+
+    void project(const Template &src, Template &dst) const
+    {
+        dst.file = src.file;
+        QList<Mat> mats;
+        for (int i=0; i<src.size(); i++) {
+            transforms[i%transforms.size()]->project(Template(src.file, src[i]), dst);
+            mats.append(dst);
+            dst.clear();
+        }
+        dst.append(mats);
+    }
+
+    void projectUpdate(const Template &src, Template &dst)
+    {
+        dst.file = src.file;
+        QList<Mat> mats;
+        for (int i=0; i<src.size(); i++) {
+            transforms[i%transforms.size()]->projectUpdate(Template(src.file, src[i]), dst);
+            mats.append(dst);
+            dst.clear();
+        }
+        dst.append(mats);
+    }
+
+    void finalize(TemplateList &out)
+    {
+        if (transforms.empty())
+            return;
+
+        transforms[0]->finalize(out);
+        for (int i=1; i < transforms.size(); i++) {
+            TemplateList temp;
+            transforms[i]->finalize(temp);
+
+            for (int j=0; j < out.size(); j++)
+                out[j].append(temp[j]);
+        }
+    }
+
+    void projectUpdate(const TemplateList &src, TemplateList &dst)
+    {
+        dst.reserve(src.size());
+        foreach (const Template &t, src) {
+            dst.append(Template());
+            projectUpdate(t, dst.last());
+        }
+    }
+
+    void store(QDataStream &stream) const
+    {
+        const int size = transforms.size();
+        stream << size;
+        for (int i=0; i<size; i++)
+            transforms[i]->store(stream);
+    }
+
+    void load(QDataStream &stream)
+    {
+        int size;
+        stream >> size;
+        while (transforms.size() < size)
+            transforms.append(transform->clone());
+        for (int i=0; i<size; i++)
+            transforms[i]->load(stream);
+    }
+};
+
+BR_REGISTER(Transform, IndependentTransform)
+
+} // namespace br
+
+#include "independent.moc"
+#include <openbr/plugins/openbr_internal.h>
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief A globally shared transform.
+ * \author Josh Klontz \cite jklontz
+ */
+class SingletonTransform : public MetaTransform
+{
+    Q_OBJECT
+    Q_PROPERTY(QString description READ get_description WRITE set_description RESET reset_description STORED false)
+    BR_PROPERTY(QString, description, "Identity")
+
+    static QMutex mutex;
+    static QHash<QString,Transform*> transforms;
+    static QHash<QString,int> trainingReferenceCounts;
+    static QHash<QString,TemplateList> trainingData;
+
+    Transform *transform;
+
+    void init()
+    {
+        QMutexLocker locker(&mutex);
+        if (!transforms.contains(description)) {
+            transforms.insert(description, make(description));
+            trainingReferenceCounts.insert(description, 0);
+        }
+
+        transform = transforms[description];
+        trainingReferenceCounts[description]++;
+    }
+
+    void train(const TemplateList &data)
+    {
+        QMutexLocker locker(&mutex);
+        trainingData[description].append(data);
+        trainingReferenceCounts[description]--;
+        if (trainingReferenceCounts[description] > 0) return;
+        transform->train(trainingData[description]);
+        trainingData[description].clear();
+    }
+
+    void project(const Template &src, Template &dst) const
+    {
+        transform->project(src, dst);
+    }
+
+    void store(QDataStream &stream) const
+    {
+        if (transform->parent() == this)
+            transform->store(stream);
+    }
+
+    void load(QDataStream &stream)
+    {
+        if (transform->parent() == this)
+            transform->load(stream);
+    }
+};
+
+QMutex SingletonTransform::mutex;
+QHash<QString,Transform*> SingletonTransform::transforms;
+QHash<QString,int> SingletonTransform::trainingReferenceCounts;
+QHash<QString,TemplateList> SingletonTransform::trainingData;
+
+BR_REGISTER(Transform, SingletonTransform)
+
+} // namespace br
+
+#include "singleton.moc"
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
- * Copyright 2012 The MITRE Corporation                                      *
- *                                                                           *
- * Licensed under the Apache License, Version 2.0 (the "License");           *
- * you may not use this file except in compliance with the License.          *
- * You may obtain a copy of the License at                                   *
- *                                                                           *
- *     http://www.apache.org/licenses/LICENSE-2.0                            *
- *                                                                           *
- * Unless required by applicable law or agreed to in writing, software       *
- * distributed under the License is distributed on an "AS IS" BASIS,         *
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  *
- * See the License for the specific language governing permissions and       *
- * limitations under the License.                                            *
- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-#include <opencv2/imgproc/imgproc.hpp>
-#include "openbr_internal.h"
-
-#include "openbr/core/opencvutils.h"
-
-using namespace cv;
-
-namespace br
-{
-
-/*!
- * \ingroup transforms
- * \brief Crops about the specified region of interest.
- * \author Josh Klontz \cite jklontz
- */
-class CropTransform : public UntrainableTransform
-{
-    Q_OBJECT
-    Q_PROPERTY(int x READ get_x WRITE set_x RESET reset_x STORED false)
-    Q_PROPERTY(int y READ get_y WRITE set_y RESET reset_y STORED false)
-    Q_PROPERTY(int width READ get_width WRITE set_width RESET reset_width STORED false)
-    Q_PROPERTY(int height READ get_height WRITE set_height RESET reset_height STORED false)
-    BR_PROPERTY(int, x, 0)
-    BR_PROPERTY(int, y, 0)
-    BR_PROPERTY(int, width, -1)
-    BR_PROPERTY(int, height, -1)
-
-    void project(const Template &src, Template &dst) const
-    {
-        dst = Mat(src, Rect(x, y, width < 1 ? src.m().cols-x-abs(width) : width, height < 1 ? src.m().rows-y-abs(height) : height));
-    }
-};
-
-BR_REGISTER(Transform, CropTransform)
-
-/*!
- * \ingroup transforms
- * \brief Crops the rectangular regions of interest.
- * \author Josh Klontz \cite jklontz
- */
-class ROITransform : public UntrainableTransform
-{
-    Q_OBJECT
-    Q_PROPERTY(QString propName READ get_propName WRITE set_propName RESET reset_propName STORED false)
-    BR_PROPERTY(QString, propName, "")
-
-    void project(const Template &src, Template &dst) const
-    {
-        if (!propName.isEmpty()) {
-            QRectF rect = src.file.get<QRectF>(propName);
-            dst += src.m()(OpenCVUtils::toRect(rect));
-        } else if (!src.file.rects().empty()) {
-            foreach (const QRectF &rect, src.file.rects())
-                dst += src.m()(OpenCVUtils::toRect(rect));
-        } else if (src.file.contains(QStringList() << "X" << "Y" << "Width" << "Height")) {
-            dst += src.m()(Rect(src.file.get<int>("X"),
-                                src.file.get<int>("Y"),
-                                src.file.get<int>("Width"),
-                                src.file.get<int>("Height")));
-        } else {
-            dst = src;
-            if (Globals->verbose)
-                qWarning("No rects present in file.");
-        }
-    }
-};
-
-BR_REGISTER(Transform, ROITransform)
-
-/*!
- * \ingroup transforms
- * \brief Crops the rectangular regions of interest from given points and sizes.
- * \author Austin Blanton \cite imaus10
- */
-class ROIFromPtsTransform : public UntrainableTransform
-{
-    Q_OBJECT
-    Q_PROPERTY(int width READ get_width WRITE set_width RESET reset_width STORED false)
-    Q_PROPERTY(int height READ get_height WRITE set_height RESET reset_height STORED false)
-    BR_PROPERTY(int, width, 1)
-    BR_PROPERTY(int, height, 1)
-
-    void project(const Template &src, Template &dst) const
-    {
-        foreach (const QPointF &pt, src.file.points()) {
-            int x = pt.x() - (width/2);
-            int y = pt.y() - (height/2);
-            dst += src.m()(Rect(x, y, width, height));
-        }
-    }
-};
-
-BR_REGISTER(Transform, ROIFromPtsTransform)
-
-/*!
- * \ingroup transforms
- * \brief Resize the template
- * \author Josh Klontz \cite jklontz
- * \note Method: Area should be used for shrinking an image, Cubic for slow but accurate enlargment, Bilin for fast enlargement.
- * \param preserveAspect If true, the image will be sized per specification, but
- * 	a border will be applied to preserve aspect ratio.
- */
-class ResizeTransform : public UntrainableTransform
-{
-    Q_OBJECT
-    Q_ENUMS(Method)
-
-public:
-    /*!< */
-    enum Method { Near = INTER_NEAREST,
-                  Area = INTER_AREA,
-                  Bilin = INTER_LINEAR,
-                  Cubic = INTER_CUBIC,
-                  Lanczo = INTER_LANCZOS4};
-
-private:
-    Q_PROPERTY(int rows READ get_rows WRITE set_rows RESET reset_rows STORED false)
-    Q_PROPERTY(int columns READ get_columns WRITE set_columns RESET reset_columns STORED false)
-    Q_PROPERTY(Method method READ get_method WRITE set_method RESET reset_method STORED false)
-    Q_PROPERTY(bool preserveAspect READ get_preserveAspect WRITE set_preserveAspect RESET reset_preserveAspect STORED false)
-    BR_PROPERTY(int, rows, -1)
-    BR_PROPERTY(int, columns, -1)
-    BR_PROPERTY(Method, method, Bilin)
-    BR_PROPERTY(bool, preserveAspect, false)
-
-    void project(const Template &src, Template &dst) const
-    {
-        if (!preserveAspect)
-            resize(src, dst, Size((columns == -1) ? src.m().cols*rows/src.m().rows : columns, rows), 0, 0, method);
-        else {
-            float inRatio = (float) src.m().rows / src.m().cols;
-            float outRatio = (float) rows / columns;
-            dst = Mat::zeros(rows, columns, src.m().type());
-            if (outRatio > inRatio) {
-                float heightAR = src.m().rows * inRatio / outRatio;
-                Mat buffer;
-                resize(src, buffer, Size(columns, heightAR), 0, 0, method);
-                buffer.copyTo(dst.m()(Rect(0, (rows - heightAR) / 2, columns, heightAR)));
-            } else {
-                float widthAR = src.m().cols / inRatio * outRatio;
-                Mat buffer;
-                resize(src, buffer, Size(widthAR, rows), 0, 0, method);
-                buffer.copyTo(dst.m()(Rect((columns - widthAR) / 2, 0, widthAR, rows)));
-            }
-        }
-    }
-};
-
-BR_REGISTER(Transform, ResizeTransform)
-
-/*!
- * \ingroup transforms
- * \brief Limit the size of the template
- * \author Josh Klontz \cite jklontz
- */
-class LimitSizeTransform : public UntrainableTransform
-{
-    Q_OBJECT
-    Q_PROPERTY(int max READ get_max WRITE set_max RESET reset_max STORED false)
-    BR_PROPERTY(int, max, -1)
-
-    void project(const Template &src, Template &dst) const
-    {
-        const Mat &m = src;
-        if (m.rows > m.cols)
-            if (m.rows > max) resize(m, dst, Size(std::max(1, m.cols * max / m.rows), max));
-            else              dst = m;
-        else
-            if (m.cols > max) resize(m, dst, Size(max, std::max(1, m.rows * max / m.cols)));
-            else              dst = m;
-    }
-};
-
-BR_REGISTER(Transform, LimitSizeTransform)
-
-/*!
- * \ingroup transforms
- * \brief Enforce a multiple of \em n columns.
- * \author Josh Klontz \cite jklontz
- */
-class DivTransform : public UntrainableTransform
-{
-    Q_OBJECT
-    Q_PROPERTY(int n READ get_n WRITE set_n RESET reset_n STORED false)
-    BR_PROPERTY(int, n, 1)
-
-    void project(const Template &src, Template &dst) const
-    {
-        dst = Mat(src, Rect(0,0,n*(src.m().cols/n),src.m().rows));
-    }
-};
-
-BR_REGISTER(Transform, DivTransform)
-
-/*!
- * \ingroup transforms
- * \brief Crop out black borders
- * \author Josh Klontz \cite jklontz
- */
-class CropBlackTransform : public UntrainableTransform
-{
-    Q_OBJECT
-
-    void project(const Template &src, Template &dst) const
-    {
-        Mat gray;
-        OpenCVUtils::cvtGray(src, gray);
-
-        int xStart = 0;
-        while (xStart < gray.cols) {
-            if (mean(gray.col(xStart))[0] >= 1) break;
-            xStart++;
-        }
-
-        int xEnd = gray.cols - 1;
-        while (xEnd >= 0) {
-            if (mean(gray.col(xEnd))[0] >= 1) break;
-            xEnd--;
-        }
-
-        int yStart = 0;
-        while (yStart < gray.rows) {
-            if (mean(gray.col(yStart))[0] >= 1) break;
-            yStart++;
-        }
-
-        int yEnd = gray.rows - 1;
-        while (yEnd >= 0) {
-            if (mean(gray.col(yEnd))[0] >= 1) break;
-            yEnd--;
-        }
-
-        dst = src.m()(Rect(xStart, yStart, xEnd-xStart, yEnd-yStart));
-    }
-};
-
-BR_REGISTER(Transform, CropBlackTransform)
-
-/*!
- * \ingroup transforms
- * \brief Divide the matrix into 4 smaller matricies of equal size.
- * \author Josh Klontz \cite jklontz
- */
-class SubdivideTransform : public UntrainableTransform
-{
-    Q_OBJECT
-
-    void project(const Template &src, Template &dst) const
-    {
-        const Mat &m = src;
-        const int subrows = m.rows/2;
-        const int subcolumns = m.cols/2;
-        dst.append(Mat(m,Rect(0,          0, subcolumns, subrows)).clone());
-        dst.append(Mat(m,Rect(subcolumns, 0, subcolumns, subrows)).clone());
-        dst.append(Mat(m,Rect(0,          subrows, subcolumns, subrows)).clone());
-        dst.append(Mat(m,Rect(subcolumns, subrows, subcolumns, subrows)).clone());
-    }
-};
-
-BR_REGISTER(Transform, SubdivideTransform)
-
-/*!
- * \ingroup transforms
- * \brief Trim the image so the width and the height are the same size.
- * \author Josh Klontz \cite jklontz
- */
-class CropSquareTransform : public UntrainableTransform
-{
-    Q_OBJECT
-
-    void project(const Template &src, Template &dst) const
-    {
-        const Mat &m = src;
-        const int newSize = min(m.rows, m.cols);
-        dst = Mat(m, Rect((m.cols-newSize)/2, (m.rows-newSize)/2, newSize, newSize));
-    }
-};
-
-BR_REGISTER(Transform, CropSquareTransform)
-
-} // namespace br
-
-#include "crop.moc"
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
- * Copyright 2012 The MITRE Corporation                                      *
- *                                                                           *
- * Licensed under the Apache License, Version 2.0 (the "License");           *
- * you may not use this file except in compliance with the License.          *
- * You may obtain a copy of the License at                                   *
- *                                                                           *
- *     http://www.apache.org/licenses/LICENSE-2.0                            *
- *                                                                           *
- * Unless required by applicable law or agreed to in writing, software       *
- * distributed under the License is distributed on an "AS IS" BASIS,         *
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  *
- * See the License for the specific language governing permissions and       *
- * limitations under the License.                                            *
- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-#include <opencv2/imgproc/imgproc_c.h>
-#include <opencv2/imgproc/imgproc.hpp>
-#include "openbr_internal.h"
-#include "openbr/core/opencvutils.h"
-
-using namespace cv;
-
-namespace br
-{
-
-/*!
- * \ingroup transforms
- * \brief Colorspace conversion.
- * \author Josh Klontz \cite jklontz
- */
-class CvtTransform : public UntrainableTransform
-{
-    Q_OBJECT
-    Q_ENUMS(ColorSpace)
-    Q_PROPERTY(ColorSpace colorSpace READ get_colorSpace WRITE set_colorSpace RESET reset_colorSpace STORED false)
-    Q_PROPERTY(int channel READ get_channel WRITE set_channel RESET reset_channel STORED false)
-
-public:
-    enum ColorSpace { Gray = CV_BGR2GRAY,
-                      RGBGray = CV_RGB2GRAY,
-                      HLS = CV_BGR2HLS,
-                      HSV = CV_BGR2HSV,
-                      Lab = CV_BGR2Lab,
-                      Luv = CV_BGR2Luv,
-                      RGB = CV_BGR2RGB,
-                      XYZ = CV_BGR2XYZ,
-                      YCrCb = CV_BGR2YCrCb,
-                      Color = CV_GRAY2BGR };
-
-private:
-    BR_PROPERTY(ColorSpace, colorSpace, Gray)
-    BR_PROPERTY(int, channel, -1)
-
-    void project(const Template &src, Template &dst) const
-    {
-        if (src.m().channels() > 1 || colorSpace == CV_GRAY2BGR) cvtColor(src, dst, colorSpace);
-        else dst = src;
-
-        if (channel != -1) {
-            std::vector<Mat> mv;
-            split(dst, mv);
-            dst = mv[channel % (int)mv.size()];
-        }
-    }
-};
-
-BR_REGISTER(Transform, CvtTransform)
-
-/*!
- * \ingroup transforms
- * \brief Convert to floating point format.
- * \author Josh Klontz \cite jklontz
- */
-class CvtFloatTransform : public UntrainableTransform
-{
-    Q_OBJECT
-
-    void project(const Template &src, Template &dst) const
-    {
-        src.m().convertTo(dst, CV_32F);
-    }
-};
-
-BR_REGISTER(Transform, CvtFloatTransform)
-
-/*!
- * \ingroup transforms
- * \brief Convert to uchar format
- * \author Josh Klontz \cite jklontz
- */
-class CvtUCharTransform : public UntrainableTransform
-{
-    Q_OBJECT
-
-    void project(const Template &src, Template &dst) const
-    {
-        OpenCVUtils::cvtUChar(src, dst);
-    }
-};
-
-BR_REGISTER(Transform, CvtUCharTransform)
-
-/*!
- * \ingroup transforms
- * \brief Scales using the given factor
- * \author Scott Klum \cite sklum
- */
-class ScaleTransform : public UntrainableTransform
-{
-    Q_OBJECT
-
-    Q_PROPERTY(float scaleFactor READ get_scaleFactor WRITE set_scaleFactor RESET reset_scaleFactor STORED false)
-    BR_PROPERTY(float, scaleFactor, 1.)
-
-    void project(const Template &src, Template &dst) const
-    {
-         resize(src, dst, Size(src.m().cols*scaleFactor,src.m().rows*scaleFactor));
-    }
-};
-
-BR_REGISTER(Transform, ScaleTransform)
-
-/*!
- * \ingroup transforms
- * \brief Split a multi-channel matrix into several single-channel matrices.
- * \author Josh Klontz \cite jklontz
- */
-class SplitChannelsTransform : public UntrainableTransform
-{
-    Q_OBJECT
-
-    void project(const Template &src, Template &dst) const
-    {
-        std::vector<Mat> mv;
-        split(src, mv);
-        foreach (const Mat &m, mv)
-            dst += m;
-    }
-};
-
-BR_REGISTER(Transform, SplitChannelsTransform)
-
-/*!
- * \ingroup transforms
- * \brief Enforce the matrix has a certain number of channels by adding or removing channels.
- * \author Josh Klontz \cite jklontz
- */
-class EnsureChannelsTransform : public UntrainableTransform
-{
-    Q_OBJECT
-    Q_PROPERTY(int n READ get_n WRITE set_n RESET reset_n STORED false)
-    BR_PROPERTY(int, n, 1)
-
-    void project(const Template &src, Template &dst) const
-    {
-        if (src.m().channels() == n) {
-            dst = src;
-        } else {
-            std::vector<Mat> mv;
-            split(src, mv);
-
-            // Add extra channels
-            while ((int)mv.size() < n) {
-                for (int i=0; i<src.m().channels(); i++) {
-                    mv.push_back(mv[i]);
-                    if ((int)mv.size() == n)
-                        break;
-                }
-            }
-
-            // Remove extra channels
-            while ((int)mv.size() > n)
-                mv.pop_back();
-
-            merge(mv, dst);
-        }
-    }
-};
-
-BR_REGISTER(Transform, EnsureChannelsTransform)
-
-/*!
- * \ingroup transforms
- * \brief Drop the alpha channel (if exists).
- * \author Austin Blanton \cite imaus10
- */
-class DiscardAlphaTransform : public UntrainableTransform
-{
-    Q_OBJECT
-
-    void project(const Template &src, Template &dst) const
-    {
-        if (src.m().channels() > 4 || src.m().channels() == 2) {
-            dst.file.fte = true;
-            return;
-        }
-
-        dst = src;
-        if (src.m().channels() == 4) {
-            std::vector<Mat> mv;
-            split(src, mv);
-            mv.pop_back();
-            merge(mv, dst);
-        }
-    }
-};
-
-BR_REGISTER(Transform, DiscardAlphaTransform)
-
-/*!
- * \ingroup transforms
- * \brief Normalized RG color space.
- * \author Josh Klontz \cite jklontz
- */
-class RGTransform : public UntrainableTransform
-{
-    Q_OBJECT
-
-    void project(const Template &src, Template &dst) const
-    {
-        if (src.m().type() != CV_8UC3)
-            qFatal("Expected CV_8UC3 images.");
-
-        const Mat &m = src.m();
-        Mat R(m.size(), CV_8UC1); // R / (R+G+B)
-        Mat G(m.size(), CV_8UC1); // G / (R+G+B)
-
-        for (int i=0; i<m.rows; i++)
-            for (int j=0; j<m.cols; j++) {
-                Vec3b v = m.at<Vec3b>(i,j);
-                const int b = v[0];
-                const int g = v[1];
-                const int r = v[2];
-                const int sum = b + g + r;
-                if (sum > 0) {
-                    R.at<uchar>(i, j) = saturate_cast<uchar>(255.0*r/(r+g+b));
-                    G.at<uchar>(i, j) = saturate_cast<uchar>(255.0*g/(r+g+b));
-                } else {
-                    R.at<uchar>(i, j) = 0;
-                    G.at<uchar>(i, j) = 0;
-                }
-            }
-
-        dst.append(R);
-        dst.append(G);
-    }
-};
-
-BR_REGISTER(Transform, RGTransform)
-
-/*!
- * \ingroup transforms
- * \brief dst = a*src+b
- * \author Josh Klontz \cite jklontz
- */
-class MAddTransform : public UntrainableTransform
-{
-    Q_OBJECT
-    Q_PROPERTY(double a READ get_a WRITE set_a RESET reset_a STORED false)
-    Q_PROPERTY(double b READ get_b WRITE set_b RESET reset_b STORED false)
-    BR_PROPERTY(double, a, 1)
-    BR_PROPERTY(double, b, 0)
-
-    void project(const Template &src, Template &dst) const
-    {
-        src.m().convertTo(dst.m(), src.m().depth(), a, b);
-    }
-};
-
-BR_REGISTER(Transform, MAddTransform)
-
-/*!
- * \ingroup transforms
- * \brief Computes the absolute value of each element.
- * \author Josh Klontz \cite jklontz
- */
-class AbsTransform : public UntrainableTransform
-{
-    Q_OBJECT
-
-    void project(const Template &src, Template &dst) const
-    {
-        dst = abs(src);
-    }
-};
-
-BR_REGISTER(Transform, AbsTransform)
-
-} // namespace br
-
-#include "cvt.moc"
@@ -15,7 +15,7 @@
  * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
  
 #include <opencv2/objdetect/objdetect.hpp>
-#include "openbr_internal.h"
+#include <openbr/plugins/openbr_internal.h>
 #include "openbr/core/opencvutils.h"
 #include "openbr/core/resource.h"
 #include "openbr/core/qtutils.h"
@@ -35,8 +35,9 @@
  
 #include <opencv2/imgproc/imgproc.hpp>
 #include <opencv2/imgproc/imgproc_c.h>
-#include "openbr_internal.h"
-#include "openbr/core/opencvutils.h"
+
+#include <openbr/plugins/openbr_internal.h>
+#include <openbr/core/opencvutils.h>
  
 using namespace cv;
  
+#include <opencv2/features2d/features2d.hpp>
+
+#include <openbr/plugins/openbr_internal.h>
+#include <openbr/core/opencvutils.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Wraps OpenCV Key Point Detector
+ * \author Josh Klontz \cite jklontz
+ */
+class KeyPointDetectorTransform : public UntrainableTransform
+{
+    Q_OBJECT
+    Q_PROPERTY(QString detector READ get_detector WRITE set_detector RESET reset_detector STORED false)
+    BR_PROPERTY(QString, detector, "SIFT")
+
+    Ptr<FeatureDetector> featureDetector;
+
+    void init()
+    {
+        featureDetector = FeatureDetector::create(detector.toStdString());
+        if (featureDetector.empty())
+            qFatal("Failed to create KeyPointDetector: %s", qPrintable(detector));
+    }
+
+    void project(const Template &src, Template &dst) const
+    {
+        dst = src;
+
+        std::vector<KeyPoint> keyPoints;
+        try {
+            featureDetector->detect(src, keyPoints);
+        } catch (...) {
+            qWarning("Key point detection failed for file %s", qPrintable(src.file.name));
+            dst.file.fte = true;
+        }
+
+        QList<Rect> rects;
+        foreach (const KeyPoint &keyPoint, keyPoints)
+            rects.append(Rect(keyPoint.pt.x-keyPoint.size/2, keyPoint.pt.y-keyPoint.size/2, keyPoint.size, keyPoint.size));
+        dst.file.setRects(OpenCVUtils::fromRects(rects));
+    }
+};
+
+BR_REGISTER(Transform, KeyPointDetectorTransform)
+
+} // namespace br
+
+#include "keypointdetector.moc"
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
- * Copyright 2012 The MITRE Corporation                                      *
- *                                                                           *
- * Licensed under the Apache License, Version 2.0 (the "License");           *
- * you may not use this file except in compliance with the License.          *
- * You may obtain a copy of the License at                                   *
- *                                                                           *
- *     http://www.apache.org/licenses/LICENSE-2.0                            *
- *                                                                           *
- * Unless required by applicable law or agreed to in writing, software       *
- * distributed under the License is distributed on an "AS IS" BASIS,         *
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  *
- * See the License for the specific language governing permissions and       *
- * limitations under the License.                                            *
- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-#include <QFutureSynchronizer>
-#include <QtConcurrentRun>
-#include <numeric>
-#include <opencv2/imgproc/imgproc.hpp>
-#include <opencv2/imgproc/imgproc_c.h>
-#include "openbr_internal.h"
-
-#include "openbr/core/distance_sse.h"
-#include "openbr/core/qtutils.h"
-#include "openbr/core/opencvutils.h"
-
-using namespace cv;
-
-namespace br
-{
-
-/*!
- * \ingroup distances
- * \brief Standard distance metrics
- * \author Josh Klontz \cite jklontz
- */
-class DistDistance : public UntrainableDistance
-{
-    Q_OBJECT
-    Q_ENUMS(Metric)
-    Q_PROPERTY(Metric metric READ get_metric WRITE set_metric RESET reset_metric STORED false)
-    Q_PROPERTY(bool negLogPlusOne READ get_negLogPlusOne WRITE set_negLogPlusOne RESET reset_negLogPlusOne STORED false)
-
-public:
-    /*!< */
-    enum Metric { Correlation,
-                  ChiSquared,
-                  Intersection,
-                  Bhattacharyya,
-                  INF,
-                  L1,
-                  L2,
-                  Cosine,
-                  Dot};
-
-private:
-    BR_PROPERTY(Metric, metric, L2)
-    BR_PROPERTY(bool, negLogPlusOne, true)
-
-    float compare(const Mat &a, const Mat &b) const
-    {
-        if ((a.size != b.size) ||
-            (a.type() != b.type()))
-                return -std::numeric_limits<float>::max();
-
-// TODO: this max value is never returned based on the switch / default 
-        float result = std::numeric_limits<float>::max();
-        switch (metric) {
-          case Correlation:
-            return compareHist(a, b, CV_COMP_CORREL);
-          case ChiSquared:
-            result = compareHist(a, b, CV_COMP_CHISQR);
-            break;
-          case Intersection:
-            result = compareHist(a, b, CV_COMP_INTERSECT);
-            break;
-          case Bhattacharyya:
-            result = compareHist(a, b, CV_COMP_BHATTACHARYYA);
-            break;
-          case INF:
-            result = norm(a, b, NORM_INF);
-            break;
-          case L1:
-            result = norm(a, b, NORM_L1);
-            break;
-          case L2:
-            result = norm(a, b, NORM_L2);
-            break;
-          case Cosine:
-            return cosine(a, b);
-          case Dot:
-            return a.dot(b);
-          default:
-            qFatal("Invalid metric");
-        }
-
-        if (result != result)
-            qFatal("NaN result.");
-
-        return negLogPlusOne ? -log(result+1) : result;
-    }
-
-    static float cosine(const Mat &a, const Mat &b)
-    {
-        float dot = 0;
-        float magA = 0;
-        float magB = 0;
-
-        for (int row=0; row<a.rows; row++) {
-            for (int col=0; col<a.cols; col++) {
-                const float target = a.at<float>(row,col);
-                const float query = b.at<float>(row,col);
-                dot += target * query;
-                magA += target * target;
-                magB += query * query;
-            }
-        }
-
-        return dot / (sqrt(magA)*sqrt(magB));
-    }
-};
-
-BR_REGISTER(Distance, DistDistance)
-
-/*!
- * \ingroup distances
- * \brief DistDistance wrapper.
- * \author Josh Klontz \cite jklontz
- */
-class DefaultDistance : public UntrainableDistance
-{
-    Q_OBJECT
-    Distance *distance;
-
-    void init()
-    {
-        distance = Distance::make("Dist("+file.suffix()+")");
-    }
-
-    float compare(const cv::Mat &a, const cv::Mat &b) const
-    {
-        return distance->compare(a, b);
-    }
-};
-
-BR_REGISTER(Distance, DefaultDistance)
-
-/*!
- * \ingroup distances
- * \brief Distances in series.
- * \author Josh Klontz \cite jklontz
- *
- * The templates are compared using each br::Distance in order.
- * If the result of the comparison with any given distance is -FLOAT_MAX then this result is returned early.
- * Otherwise the returned result is the value of comparing the templates using the last br::Distance.
- */
-class PipeDistance : public Distance
-{
-    Q_OBJECT
-    Q_PROPERTY(QList<br::Distance*> distances READ get_distances WRITE set_distances RESET reset_distances)
-    BR_PROPERTY(QList<br::Distance*>, distances, QList<br::Distance*>())
-
-    void train(const TemplateList &data)
-    {
-        QFutureSynchronizer<void> futures;
-        foreach (br::Distance *distance, distances)
-            futures.addFuture(QtConcurrent::run(distance, &Distance::train, data));
-        futures.waitForFinished();
-    }
-
-    float compare(const Template &a, const Template &b) const
-    {
-        float result = -std::numeric_limits<float>::max();
-        foreach (br::Distance *distance, distances) {
-            result = distance->compare(a, b);
-            if (result == -std::numeric_limits<float>::max())
-                return result;
-        }
-        return result;
-    }
-};
-
-BR_REGISTER(Distance, PipeDistance)
-
-/*!
- * \ingroup distances
- * \brief Fuses similarity scores across multiple matrices of compared templates
- * \author Scott Klum \cite sklum
- * \note Operation: Mean, sum, min, max are supported.
- */
-class FuseDistance : public Distance
-{
-    Q_OBJECT
-    Q_ENUMS(Operation)
-    Q_PROPERTY(QString description READ get_description WRITE set_description RESET reset_description STORED false)
-    Q_PROPERTY(Operation operation READ get_operation WRITE set_operation RESET reset_operation STORED false)
-    Q_PROPERTY(QList<float> weights READ get_weights WRITE set_weights RESET reset_weights STORED false)
-
-    QList<br::Distance*> distances;
-
-public:
-    /*!< */
-    enum Operation {Mean, Sum, Max, Min};
-
-private:
-    BR_PROPERTY(QString, description, "L2")
-    BR_PROPERTY(Operation, operation, Mean)
-    BR_PROPERTY(QList<float>, weights, QList<float>())
-
-    void train(const TemplateList &src)
-    {
-        // Partition the templates by matrix
-        QList<int> split;
-        for (int i=0; i<src.at(0).size(); i++) split.append(1);
-
-        QList<TemplateList> partitionedSrc = src.partition(split);
-
-        while (distances.size() < partitionedSrc.size())
-            distances.append(make(description));
-
-        // Train on each of the partitions
-        for (int i=0; i<distances.size(); i++)
-            distances[i]->train(partitionedSrc[i]);
-    }
-
-    float compare(const Template &a, const Template &b) const
-    {
-        if (a.size() != b.size()) qFatal("Comparison size mismatch");
-
-        QList<float> scores;
-        for (int i=0; i<distances.size(); i++) {
-            float weight;
-            weights.isEmpty() ? weight = 1. : weight = weights[i];
-            scores.append(weight*distances[i]->compare(Template(a.file, a[i]),Template(b.file, b[i])));
-        }
-
-        switch (operation) {
-          case Mean:
-            return std::accumulate(scores.begin(),scores.end(),0.0)/(float)scores.size();
-            break;
-          case Sum:
-            return std::accumulate(scores.begin(),scores.end(),0.0);
-            break;
-          case Min:
-            return *std::min_element(scores.begin(),scores.end());
-            break;
-          case Max:
-            return *std::max_element(scores.begin(),scores.end());
-            break;
-          default:
-            qFatal("Invalid operation.");
-        }
-        return 0;
-    }
-
-    void store(QDataStream &stream) const
-    {
-        stream << distances.size();
-        foreach (Distance *distance, distances)
-            distance->store(stream);
-    }
-
-    void load(QDataStream &stream)
-    {
-        int numDistances;
-        stream >> numDistances;
-        while (distances.size() < numDistances)
-            distances.append(make(description));
-        foreach (Distance *distance, distances)
-            distance->load(stream);
-    }
-};
-
-BR_REGISTER(Distance, FuseDistance)
-
-/*!
- * \ingroup distances
- * \brief Fast 8-bit L1 distance
- * \author Josh Klontz \cite jklontz
- */
-class ByteL1Distance : public UntrainableDistance
-{
-    Q_OBJECT
-
-    float compare(const unsigned char *a, const unsigned char *b, size_t size) const
-    {
-        return l1(a, b, size);
-    }
-};
-
-BR_REGISTER(Distance, ByteL1Distance)
-
-/*!
- * \ingroup distances
- * \brief Fast 4-bit L1 distance
- * \author Josh Klontz \cite jklontz
- */
-class HalfByteL1Distance : public UntrainableDistance
-{
-    Q_OBJECT
-
-    float compare(const Mat &a, const Mat &b) const
-    {
-        return packed_l1(a.data, b.data, a.total());
-    }
-};
-
-BR_REGISTER(Distance, HalfByteL1Distance)
-
-/*!
- * \ingroup distances
- * \brief Returns -log(distance(a,b)+1)
- * \author Josh Klontz \cite jklontz
- */
-class NegativeLogPlusOneDistance : public UntrainableDistance
-{
-    Q_OBJECT
-    Q_PROPERTY(br::Distance* distance READ get_distance WRITE set_distance RESET reset_distance STORED false)
-    BR_PROPERTY(br::Distance*, distance, NULL)
-
-    void train(const TemplateList &src)
-    {
-        distance->train(src);
-    }
-
-    float compare(const Template &a, const Template &b) const
-    {
-        return -log(distance->compare(a,b)+1);
-    }
-
-    void store(QDataStream &stream) const
-    {
-        distance->store(stream);
-    }
-
-    void load(QDataStream &stream)
-    {
-        distance->load(stream);
-    }
-};
-
-BR_REGISTER(Distance, NegativeLogPlusOneDistance)
-
-/*!
- * \ingroup distances
- * \brief Returns \c true if the templates are identical, \c false otherwise.
- * \author Josh Klontz \cite jklontz
- */
-class IdenticalDistance : public UntrainableDistance
-{
-    Q_OBJECT
-
-    float compare(const Mat &a, const Mat &b) const
-    {
-        const size_t size = a.total() * a.elemSize();
-        if (size != b.total() * b.elemSize()) return 0;
-        for (size_t i=0; i<size; i++)
-            if (a.data[i] != b.data[i]) return 0;
-        return 1;
-    }
-};        
-
-BR_REGISTER(Distance, IdenticalDistance)
-
-/*!
- * \ingroup distances
- * \brief Online distance metric to attenuate match scores across multiple frames
- * \author Brendan klare \cite bklare
- */
-class OnlineDistance : public UntrainableDistance
-{
-    Q_OBJECT
-    Q_PROPERTY(br::Distance* distance READ get_distance WRITE set_distance RESET reset_distance STORED false)
-    Q_PROPERTY(float alpha READ get_alpha WRITE set_alpha RESET reset_alpha STORED false)
-    BR_PROPERTY(br::Distance*, distance, NULL)
-    BR_PROPERTY(float, alpha, 0.1f)
-
-    mutable QHash<QString,float> scoreHash;
-    mutable QMutex mutex;
-
-    float compare(const Template &target, const Template &query) const
-    {
-        float currentScore = distance->compare(target, query);
-
-        QMutexLocker mutexLocker(&mutex);
-        return scoreHash[target.file.name] = (1.0- alpha) * scoreHash[target.file.name] + alpha * currentScore;
-    }
-};
-
-BR_REGISTER(Distance, OnlineDistance)
-
-/*!
- * \ingroup distances
- * \brief Attenuation function based distance from attributes
- * \author Scott Klum \cite sklum
- */
-class AttributeDistance : public UntrainableDistance
-{
-    Q_OBJECT
-    Q_PROPERTY(QString attribute READ get_attribute WRITE set_attribute RESET reset_attribute STORED false)
-    BR_PROPERTY(QString, attribute, QString())
-
-    float compare(const Template &target, const Template &query) const
-    {
-        float queryValue = query.file.get<float>(attribute);
-        float targetValue = target.file.get<float>(attribute);
-
-        // TODO: Set this magic number to something meaningful
-        float stddev = 1;
-
-        if (queryValue == targetValue) return 1;
-        else return 1/(stddev*sqrt(2*CV_PI))*exp(-0.5*pow((targetValue-queryValue)/stddev, 2));
-    }
-};
-
-BR_REGISTER(Distance, AttributeDistance)
-
-/*!
- * \ingroup distances
- * \brief Sum match scores across multiple distances
- * \author Scott Klum \cite sklum
- */
-class SumDistance : public UntrainableDistance
-{
-    Q_OBJECT
-    Q_PROPERTY(QList<br::Distance*> distances READ get_distances WRITE set_distances RESET reset_distances)
-    BR_PROPERTY(QList<br::Distance*>, distances, QList<br::Distance*>())
-
-    void train(const TemplateList &data)
-    {
-        QFutureSynchronizer<void> futures;
-        foreach (br::Distance *distance, distances)
-            futures.addFuture(QtConcurrent::run(distance, &Distance::train, data));
-        futures.waitForFinished();
-    }
-
-    float compare(const Template &target, const Template &query) const
-    {
-        float result = 0;
-
-        foreach (br::Distance *distance, distances) {
-            result += distance->compare(target, query);
-
-            if (result == -std::numeric_limits<float>::max())
-                return result;
-        }
-
-        return result;
-    }
-};
-
-BR_REGISTER(Distance, SumDistance)
-
-/*!
- * \ingroup transforms
- * \brief Compare each template to a fixed gallery (with name = galleryName), using the specified distance.
- * dst will contain a 1 by n vector of scores.
- * \author Charles Otto \cite caotto
- */
-class GalleryCompareTransform : public Transform
-{
-    Q_OBJECT
-    Q_PROPERTY(br::Distance *distance READ get_distance WRITE set_distance RESET reset_distance STORED true)
-    Q_PROPERTY(QString galleryName READ get_galleryName WRITE set_galleryName RESET reset_galleryName STORED false)
-    BR_PROPERTY(br::Distance*, distance, NULL)
-    BR_PROPERTY(QString, galleryName, "")
-
-    TemplateList gallery;
-
-    void project(const Template &src, Template &dst) const
-    {
-        dst = src;
-        if (gallery.isEmpty())
-            return;
-
-        QList<float> line = distance->compare(gallery, src);
-        dst.m() = OpenCVUtils::toMat(line, 1);
-    }
-
-    void init()
-    {
-        if (!galleryName.isEmpty())
-            gallery = TemplateList::fromGallery(galleryName);
-    }
-
-    void train(const TemplateList &data)
-    {
-        gallery = data;
-    }
-
-    void store(QDataStream &stream) const
-    {
-        br::Object::store(stream);
-        stream << gallery;
-    }
-
-    void load(QDataStream &stream)
-    {
-        br::Object::load(stream);
-        stream >> gallery;
-    }
-
-public:
-    GalleryCompareTransform() : Transform(false, true) {}
-};
-
-BR_REGISTER(Transform, GalleryCompareTransform)
-
-
-} // namespace br
-#include "distance.moc"
+#include <Eigen/Dense>
+
+#include <openbr/plugins/openbr_internal.h>
+
+namespace br
+{
+
+/*!
+ * \ingroup distances
+ * \brief L2 distance computed using eigen.
+ * \author Josh Klontz \cite jklontz
+ */
+class L2Distance : public UntrainableDistance
+{
+    Q_OBJECT
+
+    float compare(const cv::Mat &a, const cv::Mat &b) const
+    {
+        const int size = a.rows * a.cols;
+        Eigen::Map<Eigen::VectorXf> aMap((float*)a.data, size);
+        Eigen::Map<Eigen::VectorXf> bMap((float*)b.data, size);
+        return (aMap-bMap).squaredNorm();
+    }
+};
+
+BR_REGISTER(Distance, L2Distance)
+
+} // namespace br
+
+#include "L2.moc"
+#include <openbr/plugins/openbr_internal.h>
+
+namespace br
+{
+
+/*!
+ * \ingroup distances
+ * \brief Attenuation function based distance from attributes
+ * \author Scott Klum \cite sklum
+ */
+class AttributeDistance : public UntrainableDistance
+{
+    Q_OBJECT
+    Q_PROPERTY(QString attribute READ get_attribute WRITE set_attribute RESET reset_attribute STORED false)
+    BR_PROPERTY(QString, attribute, QString())
+
+    float compare(const Template &target, const Template &query) const
+    {
+        float queryValue = query.file.get<float>(attribute);
+        float targetValue = target.file.get<float>(attribute);
+
+        // TODO: Set this magic number to something meaningful
+        float stddev = 1;
+
+        if (queryValue == targetValue) return 1;
+        else return 1/(stddev*sqrt(2*CV_PI))*exp(-0.5*pow((targetValue-queryValue)/stddev, 2));
+    }
+};
+
+BR_REGISTER(Distance, AttributeDistance)
+
+} // namespace br
+
+#include "attribute.moc"
+#include <openbr/plugins/openbr_internal.h>
+#include <openbr/core/distance_sse.h>
+
+namespace br
+{
+
+/*!
+ * \ingroup distances
+ * \brief Fast 8-bit L1 distance
+ * \author Josh Klontz \cite jklontz
+ */
+class ByteL1Distance : public UntrainableDistance
+{
+    Q_OBJECT
+
+    float compare(const unsigned char *a, const unsigned char *b, size_t size) const
+    {
+        return l1(a, b, size);
+    }
+};
+
+BR_REGISTER(Distance, ByteL1Distance)
+
+} // namespace br
+
+#include "byteL1.moc"
+#include <openbr/plugins/openbr_internal.h>
+
+namespace br
+{
+
+/*!
+ * \ingroup distances
+ * \brief DistDistance wrapper.
+ * \author Josh Klontz \cite jklontz
+ */
+class DefaultDistance : public UntrainableDistance
+{
+    Q_OBJECT
+    Distance *distance;
+
+    void init()
+    {
+        distance = Distance::make("Dist("+file.suffix()+")");
+    }
+
+    float compare(const cv::Mat &a, const cv::Mat &b) const
+    {
+        return distance->compare(a, b);
+    }
+};
+
+BR_REGISTER(Distance, DefaultDistance)
+
+} // namespace br
+
+#include "default.moc"
+#include <opencv2/imgproc/imgproc.hpp>
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup distances
+ * \brief Standard distance metrics
+ * \author Josh Klontz \cite jklontz
+ */
+class DistDistance : public UntrainableDistance
+{
+    Q_OBJECT
+    Q_ENUMS(Metric)
+    Q_PROPERTY(Metric metric READ get_metric WRITE set_metric RESET reset_metric STORED false)
+    Q_PROPERTY(bool negLogPlusOne READ get_negLogPlusOne WRITE set_negLogPlusOne RESET reset_negLogPlusOne STORED false)
+
+public:
+    /*!< */
+    enum Metric { Correlation,
+                  ChiSquared,
+                  Intersection,
+                  Bhattacharyya,
+                  INF,
+                  L1,
+                  L2,
+                  Cosine,
+                  Dot};
+
+private:
+    BR_PROPERTY(Metric, metric, L2)
+    BR_PROPERTY(bool, negLogPlusOne, true)
+
+    float compare(const Mat &a, const Mat &b) const
+    {
+        if ((a.size != b.size) ||
+            (a.type() != b.type()))
+                return -std::numeric_limits<float>::max();
+
+// TODO: this max value is never returned based on the switch / default
+        float result = std::numeric_limits<float>::max();
+        switch (metric) {
+          case Correlation:
+            return compareHist(a, b, CV_COMP_CORREL);
+          case ChiSquared:
+            result = compareHist(a, b, CV_COMP_CHISQR);
+            break;
+          case Intersection:
+            result = compareHist(a, b, CV_COMP_INTERSECT);
+            break;
+          case Bhattacharyya:
+            result = compareHist(a, b, CV_COMP_BHATTACHARYYA);
+            break;
+          case INF:
+            result = norm(a, b, NORM_INF);
+            break;
+          case L1:
+            result = norm(a, b, NORM_L1);
+            break;
+          case L2:
+            result = norm(a, b, NORM_L2);
+            break;
+          case Cosine:
+            return cosine(a, b);
+          case Dot:
+            return a.dot(b);
+          default:
+            qFatal("Invalid metric");
+        }
+
+        if (result != result)
+            qFatal("NaN result.");
+
+        return negLogPlusOne ? -log(result+1) : result;
+    }
+
+    static float cosine(const Mat &a, const Mat &b)
+    {
+        float dot = 0;
+        float magA = 0;
+        float magB = 0;
+
+        for (int row=0; row<a.rows; row++) {
+            for (int col=0; col<a.cols; col++) {
+                const float target = a.at<float>(row,col);
+                const float query = b.at<float>(row,col);
+                dot += target * query;
+                magA += target * target;
+                magB += query * query;
+            }
+        }
+
+        return dot / (sqrt(magA)*sqrt(magB));
+    }
+};
+
+BR_REGISTER(Distance, DistDistance)
+
+} // namespace br
+
+#include "dist.moc"
+#include <numeric>
+
+#include <openbr/plugins/openbr_internal.h>
+
+namespace br
+{
+
+/*!
+ * \ingroup distances
+ * \brief Fuses similarity scores across multiple matrices of compared templates
+ * \author Scott Klum \cite sklum
+ * \note Operation: Mean, sum, min, max are supported.
+ */
+class FuseDistance : public Distance
+{
+    Q_OBJECT
+    Q_ENUMS(Operation)
+    Q_PROPERTY(QString description READ get_description WRITE set_description RESET reset_description STORED false)
+    Q_PROPERTY(Operation operation READ get_operation WRITE set_operation RESET reset_operation STORED false)
+    Q_PROPERTY(QList<float> weights READ get_weights WRITE set_weights RESET reset_weights STORED false)
+
+    QList<br::Distance*> distances;
+
+public:
+    /*!< */
+    enum Operation {Mean, Sum, Max, Min};
+
+private:
+    BR_PROPERTY(QString, description, "L2")
+    BR_PROPERTY(Operation, operation, Mean)
+    BR_PROPERTY(QList<float>, weights, QList<float>())
+
+    void train(const TemplateList &src)
+    {
+        // Partition the templates by matrix
+        QList<int> split;
+        for (int i=0; i<src.at(0).size(); i++) split.append(1);
+
+        QList<TemplateList> partitionedSrc = src.partition(split);
+
+        while (distances.size() < partitionedSrc.size())
+            distances.append(make(description));
+
+        // Train on each of the partitions
+        for (int i=0; i<distances.size(); i++)
+            distances[i]->train(partitionedSrc[i]);
+    }
+
+    float compare(const Template &a, const Template &b) const
+    {
+        if (a.size() != b.size()) qFatal("Comparison size mismatch");
+
+        QList<float> scores;
+        for (int i=0; i<distances.size(); i++) {
+            float weight;
+            weights.isEmpty() ? weight = 1. : weight = weights[i];
+            scores.append(weight*distances[i]->compare(Template(a.file, a[i]),Template(b.file, b[i])));
+        }
+
+        switch (operation) {
+          case Mean:
+            return std::accumulate(scores.begin(),scores.end(),0.0)/(float)scores.size();
+            break;
+          case Sum:
+            return std::accumulate(scores.begin(),scores.end(),0.0);
+            break;
+          case Min:
+            return *std::min_element(scores.begin(),scores.end());
+            break;
+          case Max:
+            return *std::max_element(scores.begin(),scores.end());
+            break;
+          default:
+            qFatal("Invalid operation.");
+        }
+        return 0;
+    }
+
+    void store(QDataStream &stream) const
+    {
+        stream << distances.size();
+        foreach (Distance *distance, distances)
+            distance->store(stream);
+    }
+
+    void load(QDataStream &stream)
+    {
+        int numDistances;
+        stream >> numDistances;
+        while (distances.size() < numDistances)
+            distances.append(make(description));
+        foreach (Distance *distance, distances)
+            distance->load(stream);
+    }
+};
+
+BR_REGISTER(Distance, FuseDistance)
+
+} // namespace br
+
+#include "fuse.moc"
+#include <openbr/plugins/openbr_internal.h>
+#include <openbr/core/opencvutils.h>
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Compare each template to a fixed gallery (with name = galleryName), using the specified distance.
+ * dst will contain a 1 by n vector of scores.
+ * \author Charles Otto \cite caotto
+ */
+class GalleryCompareTransform : public Transform
+{
+    Q_OBJECT
+    Q_PROPERTY(br::Distance *distance READ get_distance WRITE set_distance RESET reset_distance STORED true)
+    Q_PROPERTY(QString galleryName READ get_galleryName WRITE set_galleryName RESET reset_galleryName STORED false)
+    BR_PROPERTY(br::Distance*, distance, NULL)
+    BR_PROPERTY(QString, galleryName, "")
+
+    TemplateList gallery;
+
+    void project(const Template &src, Template &dst) const
+    {
+        dst = src;
+        if (gallery.isEmpty())
+            return;
+
+        QList<float> line = distance->compare(gallery, src);
+        dst.m() = OpenCVUtils::toMat(line, 1);
+    }
+
+    void init()
+    {
+        if (!galleryName.isEmpty())
+            gallery = TemplateList::fromGallery(galleryName);
+    }
+
+    void train(const TemplateList &data)
+    {
+        gallery = data;
+    }
+
+    void store(QDataStream &stream) const
+    {
+        br::Object::store(stream);
+        stream << gallery;
+    }
+
+    void load(QDataStream &stream)
+    {
+        br::Object::load(stream);
+        stream >> gallery;
+    }
+
+public:
+    GalleryCompareTransform() : Transform(false, true) {}
+};
+
+BR_REGISTER(Transform, GalleryCompareTransform)
+
+} // namespace br
+
+#include "gallerycompare.moc"
+#include <openbr/plugins/openbr_internal.h>
+#include <openbr/core/distance_sse.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup distances
+ * \brief Fast 4-bit L1 distance
+ * \author Josh Klontz \cite jklontz
+ */
+class HalfByteL1Distance : public UntrainableDistance
+{
+    Q_OBJECT
+
+    float compare(const Mat &a, const Mat &b) const
+    {
+        return packed_l1(a.data, b.data, a.total());
+    }
+};
+
+BR_REGISTER(Distance, HalfByteL1Distance)
+
+
+} // namespace br
+
+#include "halfbyteL1.moc"
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup distances
+ * \brief Returns \c true if the templates are identical, \c false otherwise.
+ * \author Josh Klontz \cite jklontz
+ */
+class IdenticalDistance : public UntrainableDistance
+{
+    Q_OBJECT
+
+    float compare(const Mat &a, const Mat &b) const
+    {
+        const size_t size = a.total() * a.elemSize();
+        if (size != b.total() * b.elemSize()) return 0;
+        for (size_t i=0; i<size; i++)
+            if (a.data[i] != b.data[i]) return 0;
+        return 1;
+    }
+};
+
+BR_REGISTER(Distance, IdenticalDistance)
+
+} // namespace br
+
+#include "identical.moc"
+#include <opencv2/features2d/features2d.hpp>
+
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Wraps OpenCV Key Point Matcher
+ * \author Josh Klontz \cite jklontz
+ */
+class KeyPointMatcherDistance : public UntrainableDistance
+{
+    Q_OBJECT
+    Q_PROPERTY(QString matcher READ get_matcher WRITE set_matcher RESET reset_matcher STORED false)
+    Q_PROPERTY(float maxRatio READ get_maxRatio WRITE set_maxRatio RESET reset_maxRatio STORED false)
+    BR_PROPERTY(QString, matcher, "BruteForce")
+    BR_PROPERTY(float, maxRatio, 0.8)
+
+    Ptr<DescriptorMatcher> descriptorMatcher;
+
+    void init()
+    {
+        descriptorMatcher = DescriptorMatcher::create(matcher.toStdString());
+        if (descriptorMatcher.empty())
+            qFatal("Failed to create DescriptorMatcher: %s", qPrintable(matcher));
+    }
+
+    float compare(const Mat &a, const Mat &b) const
+    {
+        if ((a.rows < 2) || (b.rows < 2)) return 0;
+
+        std::vector< std::vector<DMatch> > matches;
+        if (a.rows < b.rows) descriptorMatcher->knnMatch(a, b, matches, 2);
+        else                 descriptorMatcher->knnMatch(b, a, matches, 2);
+
+        QList<float> distances;
+        foreach (const std::vector<DMatch> &match, matches) {
+            if (match[0].distance / match[1].distance > maxRatio) continue;
+            distances.append(match[0].distance);
+        }
+        qSort(distances);
+
+        float similarity = 0;
+        for (int i=0; i<distances.size(); i++)
+            similarity += 1.f/(1+distances[i])/(i+1);
+        return similarity;
+    }
+};
+
+BR_REGISTER(Distance, KeyPointMatcherDistance)
+
+} // namespace br
+
+#include "keypointmatcher.moc"
+#include <Eigen/Dense>
+
+#include <openbr/plugins/openbr_internal.h>
+
+namespace br
+{
+
+/*!
+ * \ingroup distances
+ * \brief L1 distance computed using eigen.
+ * \author Josh Klontz \cite jklontz
+ */
+class L1Distance : public UntrainableDistance
+{
+    Q_OBJECT
+
+    float compare(const cv::Mat &a, const cv::Mat &b) const
+    {
+        const int size = a.rows * a.cols;
+        Eigen::Map<Eigen::VectorXf> aMap((float*)a.data, size);
+        Eigen::Map<Eigen::VectorXf> bMap((float*)b.data, size);
+        return (aMap-bMap).cwiseAbs().sum();
+    }
+};
+
+BR_REGISTER(Distance, L1Distance)
+
+} // namespace br
+
+#include "L1.moc"
+#include <openbr/plugins/openbr_internal.h>
+
+namespace br
+{
+
+/*!
+ * \ingroup distances
+ * \brief Returns -log(distance(a,b)+1)
+ * \author Josh Klontz \cite jklontz
+ */
+class NegativeLogPlusOneDistance : public UntrainableDistance
+{
+    Q_OBJECT
+    Q_PROPERTY(br::Distance* distance READ get_distance WRITE set_distance RESET reset_distance STORED false)
+    BR_PROPERTY(br::Distance*, distance, NULL)
+
+    void train(const TemplateList &src)
+    {
+        distance->train(src);
+    }
+
+    float compare(const Template &a, const Template &b) const
+    {
+        return -log(distance->compare(a,b)+1);
+    }
+
+    void store(QDataStream &stream) const
+    {
+        distance->store(stream);
+    }
+
+    void load(QDataStream &stream)
+    {
+        distance->load(stream);
+    }
+};
+
+BR_REGISTER(Distance, NegativeLogPlusOneDistance)
+
+} // namespace br
+
+#include "neglogplusone.moc"
+#include <openbr/plugins/openbr_internal.h>
+
+namespace br
+{
+
+/*!
+ * \ingroup distances
+ * \brief Online distance metric to attenuate match scores across multiple frames
+ * \author Brendan klare \cite bklare
+ */
+class OnlineDistance : public UntrainableDistance
+{
+    Q_OBJECT
+    Q_PROPERTY(br::Distance* distance READ get_distance WRITE set_distance RESET reset_distance STORED false)
+    Q_PROPERTY(float alpha READ get_alpha WRITE set_alpha RESET reset_alpha STORED false)
+    BR_PROPERTY(br::Distance*, distance, NULL)
+    BR_PROPERTY(float, alpha, 0.1f)
+
+    mutable QHash<QString,float> scoreHash;
+    mutable QMutex mutex;
+
+    float compare(const Template &target, const Template &query) const
+    {
+        float currentScore = distance->compare(target, query);
+
+        QMutexLocker mutexLocker(&mutex);
+        return scoreHash[target.file.name] = (1.0- alpha) * scoreHash[target.file.name] + alpha * currentScore;
+    }
+};
+
+BR_REGISTER(Distance, OnlineDistance)
+
+} // namespace br
+
+#include "online.moc"
+#include <QtConcurrent>
+
+#include <openbr/plugins/openbr_internal.h>
+
+namespace br
+{
+
+/*!
+ * \ingroup distances
+ * \brief Distances in series.
+ * \author Josh Klontz \cite jklontz
+ *
+ * The templates are compared using each br::Distance in order.
+ * If the result of the comparison with any given distance is -FLOAT_MAX then this result is returned early.
+ * Otherwise the returned result is the value of comparing the templates using the last br::Distance.
+ */
+class PipeDistance : public Distance
+{
+    Q_OBJECT
+    Q_PROPERTY(QList<br::Distance*> distances READ get_distances WRITE set_distances RESET reset_distances)
+    BR_PROPERTY(QList<br::Distance*>, distances, QList<br::Distance*>())
+
+    void train(const TemplateList &data)
+    {
+        QFutureSynchronizer<void> futures;
+        foreach (br::Distance *distance, distances)
+            futures.addFuture(QtConcurrent::run(distance, &Distance::train, data));
+        futures.waitForFinished();
+    }
+
+    float compare(const Template &a, const Template &b) const
+    {
+        float result = -std::numeric_limits<float>::max();
+        foreach (br::Distance *distance, distances) {
+            result = distance->compare(a, b);
+            if (result == -std::numeric_limits<float>::max())
+                return result;
+        }
+        return result;
+    }
+};
+
+BR_REGISTER(Distance, PipeDistance)
+
+} // namespace br
+
+#include "pipe.moc"
+#include <QtConcurrent>
+
+#include <openbr/plugins/openbr_internal.h>
+
+namespace br
+{
+
+/*!
+ * \ingroup distances
+ * \brief Sum match scores across multiple distances
+ * \author Scott Klum \cite sklum
+ */
+class SumDistance : public UntrainableDistance
+{
+    Q_OBJECT
+    Q_PROPERTY(QList<br::Distance*> distances READ get_distances WRITE set_distances RESET reset_distances)
+    BR_PROPERTY(QList<br::Distance*>, distances, QList<br::Distance*>())
+
+    void train(const TemplateList &data)
+    {
+        QFutureSynchronizer<void> futures;
+        foreach (br::Distance *distance, distances)
+            futures.addFuture(QtConcurrent::run(distance, &Distance::train, data));
+        futures.waitForFinished();
+    }
+
+    float compare(const Template &target, const Template &query) const
+    {
+        float result = 0;
+
+        foreach (br::Distance *distance, distances) {
+            result += distance->compare(target, query);
+
+            if (result == -std::numeric_limits<float>::max())
+                return result;
+        }
+
+        return result;
+    }
+};
+
+BR_REGISTER(Distance, SumDistance)
+
+} // namespace br
+
+#include "sum.moc"
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
- * Copyright 2012 The MITRE Corporation                                      *
- *                                                                           *
- * Licensed under the Apache License, Version 2.0 (the "License");           *
- * you may not use this file except in compliance with the License.          *
- * You may obtain a copy of the License at                                   *
- *                                                                           *
- *     http://www.apache.org/licenses/LICENSE-2.0                            *
- *                                                                           *
- * Unless required by applicable law or agreed to in writing, software       *
- * distributed under the License is distributed on an "AS IS" BASIS,         *
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  *
- * See the License for the specific language governing permissions and       *
- * limitations under the License.                                            *
- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-#include <opencv2/highgui/highgui.hpp>
-#include <opencv2/highgui/highgui_c.h>
-#include <opencv2/imgproc/imgproc.hpp>
-#include <vector>
-#include "openbr_internal.h"
-#include "openbr/core/opencvutils.h"
-
-using namespace cv;
-
-namespace br
-{
-
-/*!
- * \ingroup transforms
- * \brief Renders metadata onto the image.
- *
- * The inPlace argument controls whether or not the image is cloned before the metadata is drawn.
- *
- * \author Josh Klontz \cite jklontz
- */
-class DrawTransform : public UntrainableTransform
-{
-    Q_OBJECT
-    Q_PROPERTY(bool verbose READ get_verbose WRITE set_verbose RESET reset_verbose STORED false)
-    Q_PROPERTY(bool points READ get_points WRITE set_points RESET reset_points STORED false)
-    Q_PROPERTY(bool rects READ get_rects WRITE set_rects RESET reset_rects STORED false)
-    Q_PROPERTY(bool inPlace READ get_inPlace WRITE set_inPlace RESET reset_inPlace STORED false)
-    Q_PROPERTY(int lineThickness READ get_lineThickness WRITE set_lineThickness RESET reset_lineThickness STORED false)
-    Q_PROPERTY(bool named READ get_named WRITE set_named RESET reset_named STORED false)
-    Q_PROPERTY(bool location READ get_location WRITE set_location RESET reset_location STORED false)
-    BR_PROPERTY(bool, verbose, false)
-    BR_PROPERTY(bool, points, true)
-    BR_PROPERTY(bool, rects, true)
-    BR_PROPERTY(bool, inPlace, false)
-    BR_PROPERTY(int, lineThickness, 1)
-    BR_PROPERTY(bool, named, true)
-    BR_PROPERTY(bool, location, true)
-
-    void project(const Template &src, Template &dst) const
-    {
-        const Scalar color(0,255,0);
-        const Scalar verboseColor(255, 255, 0);
-        dst.m() = inPlace ? src.m() : src.m().clone();
-
-        if (points) {
-            const QList<Point2f> pointsList = (named) ? OpenCVUtils::toPoints(src.file.points()+src.file.namedPoints()) : OpenCVUtils::toPoints(src.file.points());
-            for (int i=0; i<pointsList.size(); i++) {
-                const Point2f &point = pointsList[i];
-                circle(dst, point, 3, color, -1);
-                QString label = (location) ? QString("%1,(%2,%3)").arg(QString::number(i),QString::number(point.x),QString::number(point.y)) : QString("%1").arg(QString::number(i));
-                if (verbose) putText(dst, label.toStdString(), point, FONT_HERSHEY_SIMPLEX, 0.5, verboseColor, 1);
-            }
-        }
-        if (rects) {
-            foreach (const Rect &rect, OpenCVUtils::toRects(src.file.namedRects() + src.file.rects()))
-                rectangle(dst, rect, color, lineThickness);
-        }
-    }
-};
-
-BR_REGISTER(Transform, DrawTransform)
-
-
-/*!
- * \ingroup transforms
- * \brief Draw the value of the specified property at the specified point on the image
- *
- * The inPlace argument controls whether or not the image is cloned before it is drawn on.
- *
- * \author Charles Otto \cite caotto
- */
-class DrawPropertyPointTransform : public UntrainableTransform
-{
-    Q_OBJECT
-    Q_PROPERTY(QString propName READ get_propName WRITE set_propName RESET reset_propName STORED false)
-    Q_PROPERTY(QString pointName READ get_pointName WRITE set_pointName RESET reset_pointName STORED false)
-    Q_PROPERTY(bool inPlace READ get_inPlace WRITE set_inPlace RESET reset_inPlace STORED false)
-    BR_PROPERTY(QString, propName, "")
-    BR_PROPERTY(QString, pointName, "")
-    BR_PROPERTY(bool, inPlace, false)
-
-
-    void project(const Template &src, Template &dst) const
-    {
-        dst = src;
-        if (propName.isEmpty() || pointName.isEmpty())
-            return;
-
-        dst.m() = inPlace ? src.m() : src.m().clone();
-
-        const Scalar textColor(255, 255, 0);
-
-        QVariant prop = dst.file.value(propName);
-
-
-        if (!prop.canConvert(QVariant::String))
-            return;
-        QString propString = prop.toString();
-
-        QVariant point = dst.file.value(pointName);
-
-        if (!point.canConvert(QVariant::PointF))
-            return;
-
-        QPointF targetPoint = point.toPointF();
-
-        Point2f cvPoint =OpenCVUtils::toPoint(targetPoint);
-
-        std::string text = propName.toStdString() + ": " + propString.toStdString();
-        putText(dst, text, cvPoint, FONT_HERSHEY_SIMPLEX, 0.5, textColor, 1);
-    }
-
-};
-BR_REGISTER(Transform, DrawPropertyPointTransform)
-
-/*!
- * \ingroup transforms
- * \brief Draw the values of a list of properties at the specified point on the image
- *
- * The inPlace argument controls whether or not the image is cloned before it is drawn on.
- *
- * \author Charles Otto \cite caotto
- */
-class DrawPropertiesPointTransform : public UntrainableTransform
-{
-    Q_OBJECT
-    Q_PROPERTY(QStringList propNames READ get_propNames WRITE set_propNames RESET reset_propNames STORED false)
-    Q_PROPERTY(QString pointName READ get_pointName WRITE set_pointName RESET reset_pointName STORED false)
-    Q_PROPERTY(bool inPlace READ get_inPlace WRITE set_inPlace RESET reset_inPlace STORED false)
-    BR_PROPERTY(QStringList, propNames, QStringList())
-    BR_PROPERTY(QString, pointName, "")
-    BR_PROPERTY(bool, inPlace, false)
-
-    void project(const Template &src, Template &dst) const
-    {
-        dst = src;
-        if (propNames.isEmpty() || pointName.isEmpty())
-            return;
-
-        dst.m() = inPlace ? src.m() : src.m().clone();
-
-        QVariant point = dst.file.value(pointName);
-
-        if (!point.canConvert(QVariant::PointF))
-            return;
-
-        QPointF targetPoint = point.toPointF();
-
-        Point2f cvPoint =OpenCVUtils::toPoint(targetPoint);
-
-
-        const Scalar textColor(255, 255, 0);
-
-        std::string outString = "";
-        foreach (const QString &propName, propNames)
-        {
-            QVariant prop = dst.file.value(propName);
-
-            if (!prop.canConvert(QVariant::String))
-                continue;
-            QString propString = prop.toString();
-            outString += propName.toStdString() + ": " + propString.toStdString() + " ";
-
-        }
-        if (outString.empty())
-            return;
-
-        putText(dst, outString, cvPoint, FONT_HERSHEY_SIMPLEX, 0.5, textColor, 1);
-    }
-
-};
-BR_REGISTER(Transform, DrawPropertiesPointTransform)
-
-
-/*!
- * \ingroup transforms
- * \brief Draws a grid on the image
- * \author Josh Klontz \cite jklontz
- */
-class DrawGridTransform : public UntrainableTransform
-{
-    Q_OBJECT
-    Q_PROPERTY(int rows READ get_rows WRITE set_rows RESET reset_rows STORED false)
-    Q_PROPERTY(int columns READ get_columns WRITE set_columns RESET reset_columns STORED false)
-    Q_PROPERTY(int r READ get_r WRITE set_r RESET reset_r STORED false)
-    Q_PROPERTY(int g READ get_g WRITE set_g RESET reset_g STORED false)
-    Q_PROPERTY(int b READ get_b WRITE set_b RESET reset_b STORED false)
-    BR_PROPERTY(int, rows, 0)
-    BR_PROPERTY(int, columns, 0)
-    BR_PROPERTY(int, r, 196)
-    BR_PROPERTY(int, g, 196)
-    BR_PROPERTY(int, b, 196)
-
-    void project(const Template &src, Template &dst) const
-    {
-        Mat m = src.m().clone();
-        float rowStep = 1.f * m.rows / (rows+1);
-        float columnStep = 1.f * m.cols / (columns+1);
-        int thickness = qMin(m.rows, m.cols) / 256;
-        for (float row = rowStep/2; row < m.rows; row += rowStep)
-            line(m, Point(0, row), Point(m.cols, row), Scalar(r, g, b), thickness, CV_AA);
-        for (float column = columnStep/2; column < m.cols; column += columnStep)
-            line(m, Point(column, 0), Point(column, m.rows), Scalar(r, g, b), thickness, CV_AA);
-        dst = m;
-    }
-};
-
-BR_REGISTER(Transform, DrawGridTransform)
-
-/*!
- * \ingroup transforms
- * \brief Computes the mean of a set of templates.
- * \note Suitable for visualization only as it sets every projected template to the mean template.
- * \author Scott Klum \cite sklum
- */
-class MeanTransform : public Transform
-{
-    Q_OBJECT
-
-    Mat mean;
-
-    void train(const TemplateList &data)
-    {
-        mean = Mat::zeros(data[0].m().rows,data[0].m().cols,CV_32F);
-
-        for (int i = 0; i < data.size(); i++) {
-            Mat converted;
-            data[i].m().convertTo(converted, CV_32F);
-            mean += converted;
-        }
-
-        mean /= data.size();
-    }
-
-    void project(const Template &src, Template &dst) const
-    {
-        dst = src;
-        dst.m() = mean;
-    }
-
-};
-
-BR_REGISTER(Transform, MeanTransform)
-
-/*!
- * \ingroup transforms
- * \brief Load the image named in the specified property, draw it on the current matrix adjacent to the rect specified in the other property.
- * \author Charles Otto \cite caotto
- */
-class AdjacentOverlayTransform : public Transform
-{
-    Q_OBJECT
-
-    Q_PROPERTY(QString imgName READ get_imgName WRITE set_imgName RESET reset_imgName STORED false)
-    Q_PROPERTY(QString targetName READ get_targetName WRITE set_targetName RESET reset_targetName STORED false)
-    BR_PROPERTY(QString, imgName, "")
-    BR_PROPERTY(QString, targetName, "")
-
-    QSharedPointer<Transform> opener;
-    void project(const Template &src, Template &dst) const
-    {
-        dst = src;
-
-        if (imgName.isEmpty() || targetName.isEmpty() || !dst.file.contains(imgName) || !dst.file.contains(targetName))
-            return;
-
-        QVariant temp = src.file.value(imgName);
-        cv::Mat im;
-        // is this a filename?
-        if (temp.canConvert<QString>()) {
-            QString im_name = temp.toString();
-            Template temp_im;
-            opener->project(File(im_name), temp_im);
-            im = temp_im.m();
-        }
-        // a cv::Mat ?
-        else if (temp.canConvert<cv::Mat>())
-            im = src.file.get<cv::Mat>(imgName);
-        else
-            qDebug() << "Unrecognized property type " << imgName << "for" << src.file.name;
-
-        // Location of detected face in source image
-        QRectF target_location = src.file.get<QRectF>(targetName);
-
-        // match width with target region
-        qreal target_width = target_location.width();
-        qreal current_width = im.cols;
-        qreal current_height = im.rows;
-
-        qreal aspect_ratio = current_height / current_width;
-        qreal target_height = target_width * aspect_ratio;
-
-        cv::resize(im, im, cv::Size(target_width, target_height));
-
-        // ROI used to maybe crop the matched image
-        cv::Rect clip_roi;
-        clip_roi.x = 0;
-        clip_roi.y = 0;
-        clip_roi.width = im.cols;
-        clip_roi.height= im.rows <= dst.m().rows ? im.rows : dst.m().rows;
-
-        int half_width = src.m().cols / 2;
-        int out_x = 0;
-
-        // place in the source image we will copy the matched image to.
-        cv::Rect target_roi;
-        bool left_side = false;
-        int width_adjust = 0;
-        // Place left
-        if (target_location.center().rx() > half_width) {
-            out_x = target_location.left() - im.cols;
-            if (out_x < 0) {
-                width_adjust = abs(out_x);
-                out_x = 0;
-            }
-            left_side = true;
-        }
-        // place right
-        else {
-            out_x = target_location.right();
-            int high = out_x + im.cols;
-            if (high >= src.m().cols) {
-                width_adjust = abs(high - src.m().cols + 1);
-            }
-        }
-
-        cv::Mat outIm;
-        if (width_adjust)
-        {
-            outIm.create(dst.m().rows, dst.m().cols + width_adjust, CV_8UC3);
-            memset(outIm.data, 127, outIm.rows * outIm.cols * outIm.channels());
-
-            Rect temp;
-
-            if (left_side)
-                temp = Rect(abs(width_adjust), 0, dst.m().cols, dst.m().rows);
-
-            else
-                temp = Rect(0, 0, dst.m().cols, dst.m().rows);
-
-            dst.m().copyTo(outIm(temp));
-
-        }
-        else
-            outIm = dst.m();
-
-        if (clip_roi.height + target_location.top() >= outIm.rows)
-        {
-            clip_roi.height -= abs(outIm.rows - (clip_roi.height + target_location.top() ));
-        }
-        if (clip_roi.x + clip_roi.width >= im.cols) {
-            clip_roi.width -= abs(im.cols - (clip_roi.x + clip_roi.width + 1));
-            if (clip_roi.width < 0)
-                clip_roi.width = 1;
-        }
-
-        if (clip_roi.y + clip_roi.height >= im.rows) {
-            clip_roi.height -= abs(im.rows - (clip_roi.y + clip_roi.height + 1));
-        }
-        if (clip_roi.x < 0)
-            clip_roi.x = 0;
-        if (clip_roi.y < 0)
-            clip_roi.y = 0;
-
-        if (clip_roi.height < 0)
-            clip_roi.height = 0;
-
-        if (clip_roi.width < 0)
-            clip_roi.width = 0;
-
-
-        if (clip_roi.y + clip_roi.height >= im.rows)
-        {
-            qDebug() << "Bad clip y" << clip_roi.y + clip_roi.height << im.rows;
-        }
-        if (clip_roi.x + clip_roi.width >= im.cols)
-        {
-            qDebug() << "Bad clip x" << clip_roi.x + clip_roi.width << im.cols;
-        }
-
-        if (clip_roi.y < 0 || clip_roi.height < 0)
-        {
-            qDebug() << "bad clip y, low" << clip_roi.y << clip_roi.height;
-            qFatal("die");
-        }
-        if (clip_roi.x < 0 || clip_roi.width < 0)
-        {
-            qDebug() << "bad clip x, low" << clip_roi.x << clip_roi.width;
-            qFatal("die");
-        }
-
-        target_roi.x = out_x;
-        target_roi.width = clip_roi.width;
-        target_roi.y = target_location.top();
-        target_roi.height = clip_roi.height;
-
-
-        im = im(clip_roi);
-
-        if (target_roi.x < 0 || target_roi.x >= outIm.cols)
-        {
-            qDebug() << "Bad xdim in targetROI!" << target_roi.x << " out im x: " << outIm.cols;
-            qFatal("die");
-        }
-
-        if (target_roi.x + target_roi.width < 0 || (target_roi.x + target_roi.width) >= outIm.cols)
-        {
-            qDebug() << "Bad xdim in targetROI!" << target_roi.x + target_roi.width;
-            qFatal("die");
-        }
-
-        if (target_roi.y < 0 || target_roi.y >= outIm.rows)
-        {
-            qDebug() << "Bad ydim in targetROI!" << target_roi.y;
-            qFatal("die");
-        }
-
-        if ((target_roi.y + target_roi.height) < 0 || (target_roi.y + target_roi.height) > outIm.rows)
-        {
-            qDebug() << "Bad ydim in targetROI!" << target_roi.y + target_roi.height;
-            qDebug() << "target_roi.y: " << target_roi.y << " height: " << target_roi.height;
-            qFatal("die");
-        }
-
-        
-        std::vector<cv::Mat> channels;
-        cv::split(outIm, channels);
-
-        std::vector<cv::Mat> patch_channels;
-        cv::split(im, patch_channels);
-
-        for (size_t i=0; i < channels.size(); i++)
-        {
-            cv::addWeighted(channels[i](target_roi), 0, patch_channels[i % patch_channels.size()], 1, 0,channels[i](target_roi));
-        }
-        cv::merge(channels, outIm);
-        dst.m() = outIm;
-
-    }
-
-    void init()
-    {
-        opener = QSharedPointer<br::Transform>(br::Transform::make("Cache(Open)", NULL));
-    }
-
-};
-
-BR_REGISTER(Transform, AdjacentOverlayTransform)
-
-/*!
- * \ingroup transforms
- * \brief Draw a line representing the direction and magnitude of optical flow at the specified points.
- * \author Austin Blanton \cite imaus10
- */
-class DrawOpticalFlow : public UntrainableTransform
-{
-    Q_OBJECT
-    Q_PROPERTY(QString original READ get_original WRITE set_original RESET reset_original STORED false)
-    BR_PROPERTY(QString, original, "original")
-
-    void project(const Template &src, Template &dst) const
-    {
-        const Scalar color(0,255,0);
-        Mat flow = src.m();
-        dst = src;
-        if (!dst.file.contains(original)) qFatal("The original img must be saved in the metadata with SaveMat.");
-        dst.m() = dst.file.get<Mat>(original);
-        dst.file.remove(original);
-        foreach (const Point2f &pt, OpenCVUtils::toPoints(dst.file.points())) {
-            Point2f dxy = flow.at<Point2f>(pt.y, pt.x);
-            Point2f newPt(pt.x+dxy.x, pt.y+dxy.y);
-            line(dst, pt, newPt, color);
-        }
-    }
-};
-BR_REGISTER(Transform, DrawOpticalFlow)
-
-/*!
- * \ingroup transforms
- * \brief Fill in the segmentations or draw a line between intersecting segments.
- * \author Austin Blanton \cite imaus10
- */
-class DrawSegmentation : public UntrainableTransform
-{
-    Q_OBJECT
-    Q_PROPERTY(bool fillSegment READ get_fillSegment WRITE set_fillSegment RESET reset_fillSegment STORED false)
-    BR_PROPERTY(bool, fillSegment, true)
-
-    void project(const Template &src, Template &dst) const
-    {
-        if (!src.file.contains("SegmentsMask") || !src.file.contains("NumSegments")) qFatal("Must supply a Contours object in the metadata to drawContours.");
-        Mat segments = src.file.get<Mat>("SegmentsMask");
-        int numSegments = src.file.get<int>("NumSegments");
-
-        dst.file = src.file;
-        Mat drawn = fillSegment ? Mat(segments.size(), CV_8UC3, Scalar::all(0)) : src.m();
-
-        for (int i=1; i<numSegments+1; i++) {
-            Mat mask = segments == i;
-            if (fillSegment) { // color the whole segment
-                // set to a random color - get ready for a craaaazy acid trip
-                int b = theRNG().uniform(0, 255);
-                int g = theRNG().uniform(0, 255);
-                int r = theRNG().uniform(0, 255);
-                drawn.setTo(Scalar(r,g,b), mask);
-            } else { // draw lines where there's a color change
-                vector<vector<Point> > contours;
-                Scalar color(0,255,0);
-                findContours(mask, contours, CV_RETR_LIST, CV_CHAIN_APPROX_NONE);
-                drawContours(drawn, contours, -1, color);
-            }
-        }
-
-        dst.m() = drawn;
-    }
-};
-BR_REGISTER(Transform, DrawSegmentation)
-
-/*!
- * \ingroup transforms
- * \brief Write all mats to disk as images.
- * \author Brendan Klare \cite bklare
- */
-class WriteImageTransform : public TimeVaryingTransform
-{
-    Q_OBJECT
-    Q_PROPERTY(QString outputDirectory READ get_outputDirectory WRITE set_outputDirectory RESET reset_outputDirectory STORED false)
-    Q_PROPERTY(QString imageName READ get_imageName WRITE set_imageName RESET reset_imageName STORED false)
-    Q_PROPERTY(QString imgExtension READ get_imgExtension WRITE set_imgExtension RESET reset_imgExtension STORED false)
-    BR_PROPERTY(QString, outputDirectory, "Temp")
-    BR_PROPERTY(QString, imageName, "image")
-    BR_PROPERTY(QString, imgExtension, "jpg")
-
-    int cnt;
-
-    void init() {
-        cnt = 0;
-        if (! QDir(outputDirectory).exists())
-            QDir().mkdir(outputDirectory);
-    }
-
-    void projectUpdate(const Template &src, Template &dst)
-    {
-        dst = src;
-        OpenCVUtils::saveImage(dst.m(), QString("%1/%2_%3.%4").arg(outputDirectory).arg(imageName).arg(cnt++, 5, 10, QChar('0')).arg(imgExtension));
-    }
-
-};
-BR_REGISTER(Transform, WriteImageTransform)
-
-
-/**
- * @brief The MeanImageTransform class computes the average template/image
- * and save the result as an encoded image.
- */
-class MeanImageTransform : public TimeVaryingTransform
-{
-    Q_OBJECT
-
-    Q_PROPERTY(QString imgname READ get_imgname WRITE set_imgname RESET reset_imgname STORED false)
-    Q_PROPERTY(QString ext READ get_ext WRITE set_ext RESET reset_ext STORED false)
-
-    BR_PROPERTY(QString, imgname, "average")
-    BR_PROPERTY(QString, ext, "jpg")
-
-    Mat average;
-    int cnt;
-
-    void init()
-    {
-        cnt = 0;
-    }
-
-    void projectUpdate(const Template &src, Template &dst)
-    {
-        dst = src;
-        if (cnt == 0) {
-            if (src.m().channels() == 1)
-                average = Mat::zeros(dst.m().size(),CV_64FC1);
-            else if (src.m().channels() == 3)
-                average = Mat::zeros(dst.m().size(),CV_64FC3);
-            else
-                qFatal("Unsupported number of channels");
-        }
-
-        Mat temp;
-        if (src.m().channels() == 1) {
-            src.m().convertTo(temp, CV_64FC1);
-            average += temp;
-        } else if (src.m().channels() == 3) {
-            src.m().convertTo(temp, CV_64FC3);
-            average += temp;
-        } else
-            qFatal("Unsupported number of channels");
-
-        cnt++;
-    }
-
-    virtual void finalize(TemplateList &output)
-    {
-        average /= float(cnt);
-        imwrite(QString("%1.%2").arg(imgname).arg(ext).toStdString(), average);
-        output = TemplateList();
-    }
-
-
-public:
-    MeanImageTransform() : TimeVaryingTransform(false, false) {}
-};
-
-BR_REGISTER(Transform, MeanImageTransform)
-
-
-// TODO: re-implement EditTransform using Qt
-#if 0
-/*!
- * \ingroup transforms
- * \brief Remove landmarks.
- * \author Josh Klontz \cite jklontz
- */
-class EditTransform : public UntrainableTransform
-{
-    Q_OBJECT
-
-    Transform *draw;
-    static Template currentTemplate;
-    static QMutex currentTemplateLock;
-
-    void init()
-    {
-        draw = make("Draw");
-        Globals->setProperty("parallelism", "0"); // Can only work in single threaded mode
-    }
-
-    void project(const Template &src, Template &dst) const
-    {
-        dst = src;
-
-        if (Globals->parallelism) {
-            qWarning("Edit::project() only works in single threaded mode.");
-            return;
-        }
-
-        currentTemplateLock.lock();
-        currentTemplate = src;
-        OpenCVUtils::showImage(src, "Edit", false);
-        setMouseCallback("Edit", mouseCallback, (void*)this);
-        mouseEvent(0, 0, 0, 0);
-        waitKey(-1);
-        dst = currentTemplate;
-        currentTemplateLock.unlock();
-    }
-
-    static void mouseCallback(int event, int x, int y, int flags, void *userdata)
-    {
-        ((const EditTransform*)userdata)->mouseEvent(event, x, y, flags);
-    }
-
-    void mouseEvent(int event, int x, int y, int flags) const
-    {
-        (void) event;
-        if (flags) {
-            QList<QRectF> rects = currentTemplate.file.rects();
-            for (int i=rects.size()-1; i>=0; i--)
-                if (rects[i].contains(x,y))
-                    rects.removeAt(i);
-            currentTemplate.file.setRects(rects);
-        }
-
-        Template temp;
-        draw->project(currentTemplate, temp);
-        OpenCVUtils::showImage(temp, "Edit", false);
-    }
-};
-
-Template EditTransform::currentTemplate;
-QMutex EditTransform::currentTemplateLock;
-
-BR_REGISTER(Transform, EditTransform)
-#endif
-
-} // namespace br
-
-#include "draw.moc"
@@ -652,46 +652,6 @@ class SparseLDATransform : public Transform
  
 BR_REGISTER(Transform, SparseLDATransform)
  
-/*!
- * \ingroup distances
- * \brief L1 distance computed using eigen.
- * \author Josh Klontz \cite jklontz
- */
-class L1Distance : public UntrainableDistance
-{
-    Q_OBJECT
-
-    float compare(const cv::Mat &a, const cv::Mat &b) const
-    {
-        const int size = a.rows * a.cols;
-        Eigen::Map<Eigen::VectorXf> aMap((float*)a.data, size);
-        Eigen::Map<Eigen::VectorXf> bMap((float*)b.data, size);
-        return (aMap-bMap).cwiseAbs().sum();
-    }
-};
-
-BR_REGISTER(Distance, L1Distance)
-
-/*!
- * \ingroup distances
- * \brief L2 distance computed using eigen.
- * \author Josh Klontz \cite jklontz
- */
-class L2Distance : public UntrainableDistance
-{
-    Q_OBJECT
-
-    float compare(const cv::Mat &a, const cv::Mat &b) const
-    {
-        const int size = a.rows * a.cols;
-        Eigen::Map<Eigen::VectorXf> aMap((float*)a.data, size);
-        Eigen::Map<Eigen::VectorXf> bMap((float*)b.data, size);
-        return (aMap-bMap).squaredNorm();
-    }
-};
-
-BR_REGISTER(Distance, L2Distance)
-
 } // namespace br
  
 #include "eigen3.moc"
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
- * Copyright 2012 The MITRE Corporation                                      *
- *                                                                           *
- * Licensed under the Apache License, Version 2.0 (the "License");           *
- * you may not use this file except in compliance with the License.          *
- * You may obtain a copy of the License at                                   *
- *                                                                           *
- *     http://www.apache.org/licenses/LICENSE-2.0                            *
- *                                                                           *
- * Unless required by applicable law or agreed to in writing, software       *
- * distributed under the License is distributed on an "AS IS" BASIS,         *
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  *
- * See the License for the specific language governing permissions and       *
- * limitations under the License.                                            *
- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-#include <opencv2/photo/photo.hpp>
-#include "openbr_internal.h"
-
-using namespace cv;
-
-namespace br
-{
-
-/*!
- * \ingroup transforms
- * \brief Wraps OpenCV inpainting
- * \author Josh Klontz \cite jklontz
- */
-class InpaintTransform : public UntrainableTransform
-{
-    Q_OBJECT
-    Q_ENUMS(Method)
-    Q_PROPERTY(int radius READ get_radius WRITE set_radius RESET reset_radius STORED false)
-    Q_PROPERTY(Method method READ get_method WRITE set_method RESET reset_method STORED false)
-
-public:
-    /*!< */
-    enum Method { NavierStokes = INPAINT_NS,
-                  Telea = INPAINT_TELEA };
-
-private:
-    BR_PROPERTY(int, radius, 1)
-    BR_PROPERTY(Method, method, NavierStokes)
-    Transform *cvtGray;
-
-    void init()
-    {
-        cvtGray = make("Cvt(Gray)");
-    }
-
-    void project(const Template &src, Template &dst) const
-    {
-        inpaint(src, (*cvtGray)(src)<5, dst, radius, method);
-    }
-};
-
-BR_REGISTER(Transform, InpaintTransform)
-
-/*!
- * \ingroup transforms
- * \brief Fill 0 pixels with the mean of non-0 pixels.
- * \author Josh Klontz \cite jklontz
- */
-class MeanFillTransform : public UntrainableTransform
-{
-    Q_OBJECT
-
-    void project(const Template &src, Template &dst) const
-    {
-        dst = src.m().clone();
-        dst.m().setTo(mean(dst, dst.m()!=0), dst.m()==0);
-    }
-};
-
-BR_REGISTER(Transform, MeanFillTransform)
-
-/*!
- * \ingroup transforms
- * \brief Fill black pixels with the specified color.
- * \author Josh Klontz \cite jklontz
- */
-class FloodTransform : public UntrainableTransform
-{
-    Q_OBJECT
-    Q_PROPERTY(int r READ get_r WRITE set_r RESET reset_r STORED false)
-    Q_PROPERTY(int g READ get_g WRITE set_g RESET reset_g STORED false)
-    Q_PROPERTY(int b READ get_b WRITE set_b RESET reset_b STORED false)
-    Q_PROPERTY(bool all READ get_all WRITE set_all RESET reset_all STORED false)
-    BR_PROPERTY(int, r, 0)
-    BR_PROPERTY(int, g, 0)
-    BR_PROPERTY(int, b, 0)
-    BR_PROPERTY(bool, all, false)
-
-    void project(const Template &src, Template &dst) const
-    {
-        dst = src.m().clone();
-        dst.m().setTo(Scalar(r, g, b), all ? Mat() : dst.m()==0);
-    }
-};
-
-BR_REGISTER(Transform, FloodTransform)
-
-/*!
- * \ingroup transforms
- * \brief Alpha-blend two matrices
- * \author Josh Klontz \cite jklontz
- */
-class BlendTransform : public UntrainableMetaTransform
-{
-    Q_OBJECT
-    Q_PROPERTY(float alpha READ get_alpha WRITE set_alpha RESET reset_alpha STORED false)
-    BR_PROPERTY(float, alpha, 0.5)
-
-    void project(const Template &src, Template &dst) const
-    {
-        if (src.size() != 2) qFatal("Expected two source matrices.");
-        addWeighted(src[0], alpha, src[1], 1-alpha, 0, dst);
-    }
-};
-
-BR_REGISTER(Transform, BlendTransform)
-
-} // namespace br
-
-#include "fill.moc"
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
- * Copyright 2012 The MITRE Corporation                                      *
- *                                                                           *
- * Licensed under the Apache License, Version 2.0 (the "License");           *
- * you may not use this file except in compliance with the License.          *
- * You may obtain a copy of the License at                                   *
- *                                                                           *
- *     http://www.apache.org/licenses/LICENSE-2.0                            *
- *                                                                           *
- * Unless required by applicable law or agreed to in writing, software       *
- * distributed under the License is distributed on an "AS IS" BASIS,         *
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  *
- * See the License for the specific language governing permissions and       *
- * limitations under the License.                                            *
- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-#include <opencv2/imgproc/imgproc.hpp>
-#include "openbr_internal.h"
-#include "openbr/core/tanh_sse.h"
-
-using namespace cv;
-
-namespace br
-{
-
-/*!
- * \ingroup transforms
- * \brief Gamma correction
- * \author Josh Klontz \cite jklontz
- */
-class GammaTransform : public UntrainableTransform
-{
-    Q_OBJECT
-    Q_PROPERTY(float gamma READ get_gamma WRITE set_gamma RESET reset_gamma STORED false)
-    BR_PROPERTY(float, gamma, 0.2)
-
-    Mat lut;
-
-    void init()
-    {
-        lut.create(256, 1, CV_32FC1);
-        if (gamma == 0) for (int i=0; i<256; i++) lut.at<float>(i,0) = log((float)i);
-        else            for (int i=0; i<256; i++) lut.at<float>(i,0) = pow(i, gamma);
-    }
-
-    void project(const Template &src, Template &dst) const
-    {
-        if (src.m().depth() == CV_8U) LUT(src, lut, dst);
-        else                          pow(src, gamma, dst);
-    }
-};
-
-BR_REGISTER(Transform, GammaTransform)
-
-/*!
- * \ingroup transforms
- * \brief Gaussian blur
- * \author Josh Klontz \cite jklontz
- */
-class BlurTransform : public UntrainableTransform
-{
-    Q_OBJECT
-    Q_PROPERTY(float sigma READ get_sigma WRITE set_sigma RESET reset_sigma STORED false)
-    Q_PROPERTY(bool ROI READ get_ROI WRITE set_ROI RESET reset_ROI STORED false)
-    BR_PROPERTY(float, sigma, 1)
-    BR_PROPERTY(bool, ROI, false)
-
-    void project(const Template &src, Template &dst) const
-    {
-        if (!ROI) GaussianBlur(src, dst, Size(0,0), sigma);
-        else {
-            dst.m() = src.m();
-            foreach (const QRectF &rect, src.file.rects()) {
-                Rect region(rect.x(), rect.y(), rect.width(), rect.height());
-                Mat input = dst.m();
-                Mat output = input.clone();
-                GaussianBlur(input(region), output(region), Size(0,0), sigma);
-                dst.m() = output;
-            }
-        }
-    }
-};
-
-BR_REGISTER(Transform, BlurTransform)
-
-/*!
- * \ingroup transforms
- * \brief Difference of gaussians
- * \author Josh Klontz \cite jklontz
- */
-class DoGTransform : public UntrainableTransform
-{
-    Q_OBJECT
-    Q_PROPERTY(float sigma0 READ get_sigma0 WRITE set_sigma0 RESET reset_sigma0 STORED false)
-    Q_PROPERTY(float sigma1 READ get_sigma1 WRITE set_sigma1 RESET reset_sigma1 STORED false)
-    BR_PROPERTY(float, sigma0, 1)
-    BR_PROPERTY(float, sigma1, 2)
-
-    Size ksize0, ksize1;
-
-    static Size getKernelSize(double sigma)
-    {
-        // Inverts OpenCV's conversion from kernel size to sigma:
-        // sigma = ((ksize-1)*0.5 - 1)*0.3 + 0.8
-        // See documentation for cv::getGaussianKernel()
-        int ksize = ((sigma - 0.8) / 0.3 + 1) * 2 + 1;
-        if (ksize % 2 == 0) ksize++;
-        return Size(ksize, ksize);
-    }
-
-    void init()
-    {
-        ksize0 = getKernelSize(sigma0);
-        ksize1 = getKernelSize(sigma1);
-    }
-
-    void project(const Template &src, Template &dst) const
-    {
-        Mat g0, g1;
-        GaussianBlur(src, g0, ksize0, 0);
-        GaussianBlur(src, g1, ksize1, 0);
-        subtract(g0, g1, dst);
-    }
-};
-
-BR_REGISTER(Transform, DoGTransform)
-
-/*!
- * \ingroup transforms
- * \brief Meyers, E.; Wolf, L.
- * “Using biologically inspired features for face processing,”
- * Int. Journal of Computer Vision, vol. 76, no. 1, pp 93–104, 2008.
- * \author Scott Klum \cite sklum
- */
-
-class CSDNTransform : public UntrainableTransform
-{
-    Q_OBJECT
-
-    Q_PROPERTY(float s READ get_s WRITE set_s RESET reset_s STORED false)
-    BR_PROPERTY(int, s, 16)
-
-    void project(const Template &src, Template &dst) const
-    {
-        if (src.m().channels() != 1) qFatal("Expected single channel source matrix.");
-
-        const int nRows = src.m().rows;
-        const int nCols = src.m().cols;
-
-        Mat m;
-        src.m().convertTo(m, CV_32FC1);
-
-        const int surround = s/2;
-
-        for ( int i = 0; i < nRows; i++ ) {
-            for ( int j = 0; j < nCols; j++ ) {
-                int width = min( j+surround, nCols ) - max( 0, j-surround );
-                int height = min( i+surround, nRows ) - max( 0, i-surround );
-
-                Rect_<int> ROI(max(0, j-surround), max(0, i-surround), width, height);
-
-                Scalar_<float> avg = mean(m(ROI));
-
-                m.at<float>(i,j) = m.at<float>(i,j) - avg[0];
-            }
-        }
-
-        dst = m;
-
-    }
-};
-
-BR_REGISTER(Transform, CSDNTransform)
-
-/*!
- * \ingroup transforms
- * \brief Xiaoyang Tan; Triggs, B.;
- * "Enhanced Local Texture Feature Sets for Face Recognition Under Difficult Lighting Conditions,"
- * Image Processing, IEEE Transactions on , vol.19, no.6, pp.1635-1650, June 2010
- * \author Josh Klontz \cite jklontz
- */
-class ContrastEqTransform : public UntrainableTransform
-{
-    Q_OBJECT
-    Q_PROPERTY(float a READ get_a WRITE set_a RESET reset_a STORED false)
-    Q_PROPERTY(float t READ get_t WRITE set_t RESET reset_t STORED false)
-    BR_PROPERTY(float, a, 1)
-    BR_PROPERTY(float, t, 0.1)
-
-    void project(const Template &src, Template &dst) const
-    {
-        if (src.m().channels() != 1) qFatal("Expected single channel source matrix.");
-
-        // Stage 1
-        Mat stage1;
-        {
-            Mat abs_dst;
-            absdiff(src, Scalar(0), abs_dst);
-            Mat pow_dst;
-            pow(abs_dst, a, pow_dst);
-            float denominator = pow((float)mean(pow_dst)[0], 1.f/a);
-            src.m().convertTo(stage1, CV_32F, 1/denominator);
-        }
-
-        // Stage 2
-        Mat stage2;
-        {
-            Mat abs_dst;
-            absdiff(stage1, Scalar(0), abs_dst);
-            Mat min_dst;
-            min(abs_dst, t, min_dst);
-            Mat pow_dst;
-            pow(min_dst, a, pow_dst);
-            float denominator = pow((float)mean(pow_dst)[0], 1.f/a);
-            stage1.convertTo(stage2, CV_32F, 1/denominator);
-        }
-
-        // Hyperbolic tangent
-        const int nRows = src.m().rows;
-        const int nCols = src.m().cols;
-        const float* p = (const float*)stage2.ptr();
-        Mat m(nRows, nCols, CV_32FC1);
-        for (int i=0; i<nRows; i++)
-            for (int j=0; j<nCols; j++)
-                m.at<float>(i, j) = fast_tanh(p[i*nCols+j]);
-                // TODO: m.at<float>(i, j) = t * fast_tanh(p[i*nCols+j] / t);
-
-        dst = m;
-    }
-};
-
-BR_REGISTER(Transform, ContrastEqTransform)
-
-/*!
- * \ingroup transforms
- * \brief Raise each element to the specified power.
- * \author Josh Klontz \cite jklontz
- */
-class PowTransform : public UntrainableTransform
-{
-    Q_OBJECT
-    Q_PROPERTY(float power READ get_power WRITE set_power RESET reset_power STORED false)
-    Q_PROPERTY(bool preserveSign READ get_preserveSign WRITE set_preserveSign RESET reset_preserveSign STORED false)
-    BR_PROPERTY(float, power, 2)
-    BR_PROPERTY(bool, preserveSign, false)
-
-    void project(const Template &src, Template &dst) const
-    {
-        pow(preserveSign ? abs(src) : src.m(), power, dst);
-        if (preserveSign) subtract(Scalar::all(0), dst, dst, src.m() < 0);
-    }
-};
-
-BR_REGISTER(Transform, PowTransform)
-
-} // namespace br
-
-#include "filter.moc"
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
- * Copyright 2012 The MITRE Corporation                                      *
- *                                                                           *
- * Licensed under the Apache License, Version 2.0 (the "License");           *
- * you may not use this file except in compliance with the License.          *
- * You may obtain a copy of the License at                                   *
- *                                                                           *
- *     http://www.apache.org/licenses/LICENSE-2.0                            *
- *                                                                           *
- * Unless required by applicable law or agreed to in writing, software       *
- * distributed under the License is distributed on an "AS IS" BASIS,         *
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  *
- * See the License for the specific language governing permissions and       *
- * limitations under the License.                                            *
- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-#include <QDate>
-#include <QSize>
-#include <QChar>
-#ifndef BR_EMBEDDED
-#include <QtXml>
-#endif // BR_EMBEDDED
-#include <QFile>
-#include <QFileInfo>
-
-#include <opencv2/highgui/highgui.hpp>
-#include <opencv2/highgui/highgui_c.h>
-#include "openbr_internal.h"
-
-#include "openbr/core/bee.h"
-#include "openbr/core/opencvutils.h"
-#include "openbr/core/qtutils.h"
-
-using namespace cv;
-
-namespace br
-{
-
- /*!
- * \ingroup formats
- * \brief Read all frames of a video using OpenCV
- * \author Charles Otto \cite caotto
- */
-class videoFormat : public Format
-{
-    Q_OBJECT
-
-public:
-    Template read() const
-    {
-        if (!file.exists() )
-            return Template();
-
-        VideoCapture videoSource(file.name.toStdString());
-        videoSource.open(file.name.toStdString() );
-
-
-        Template frames;
-        if (!videoSource.isOpened()) {
-            qWarning("video file open failed");
-            return frames;
-        }
-
-        bool open = true;
-        while (open) {
-            cv::Mat frame;
-            open = videoSource.read(frame);
-            if (!open) break;
-
-            frames.append(cv::Mat());
-            frames.back() = frame.clone();
-        }
-
-        return frames;
-    }
-
-    void write(const Template &t) const
-    {
-        int fourcc = OpenCVUtils::getFourcc();
-        VideoWriter videoSink(file.name.toStdString(), fourcc, 30, t.begin()->size());
-
-        // Did we successfully open the output file?
-        if (!videoSink.isOpened() ) qFatal("Failed to open output file");
-
-        for (Template::const_iterator it = t.begin(); it!= t.end(); ++it) {
-            videoSink << *it;
-        }
-    }
-};
-
-BR_REGISTER(Format, videoFormat)
-
-/*!
- * \ingroup formats
- * \brief A simple binary matrix format.
- * \author Josh Klontz \cite jklontz
- * First 4 bytes indicate the number of rows.
- * Second 4 bytes indicate the number of columns.
- * The rest of the bytes are 32-bit floating data elements in row-major order.
- */
-class binFormat : public Format
-{
-    Q_OBJECT
-    Q_PROPERTY(bool raw READ get_raw WRITE set_raw RESET reset_raw STORED false)
-    BR_PROPERTY(bool, raw, false)
-
-    Template read() const
-    {
-        QByteArray data;
-        QtUtils::readFile(file, data);
-        if (raw) {
-            return Template(file, Mat(1, data.size(), CV_8UC1, data.data()).clone());
-        } else {
-            return Template(file, Mat(((quint32*)data.data())[0],
-                                      ((quint32*)data.data())[1],
-                                      CV_32FC1,
-                                      data.data()+8).clone());
-        }
-    }
-
-    void write(const Template &t) const
-    {
-        QFile f(file);
-        QtUtils::touchDir(f);
-        if (!f.open(QFile::WriteOnly))
-            qFatal("Failed to open %s for writing.", qPrintable(file));
-
-        Mat m;
-        if (!raw) {
-            if (t.m().type() != CV_32FC1)
-                t.m().convertTo(m, CV_32F);
-            else m = t.m();
-
-            if (m.channels() != 1) qFatal("Only supports single channel matrices.");
-
-            f.write((const char *) &m.rows, 4);
-            f.write((const char *) &m.cols, 4);
-        }
-        else m =  t.m();
-
-        qint64 rowSize = m.cols * sizeof(float);
-        for (int i=0; i < m.rows; i++)
-        {
-            f.write((const char *) m.row(i).data, rowSize);
-        }
-        f.close();
-    }
-};
-
-BR_REGISTER(Format, binFormat)
-
-/*!
- * \ingroup formats
- * \brief Reads a comma separated value file.
- * \author Josh Klontz \cite jklontz
- */
-class csvFormat : public Format
-{
-    Q_OBJECT
-
-    Template read() const
-    {
-        QFile f(file.name);
-        f.open(QFile::ReadOnly);
-        QStringList lines(QString(f.readAll()).split(QRegularExpression("[\n|\r\n|\r]"), QString::SkipEmptyParts));
-        f.close();
-
-        bool isUChar = true;
-        QList< QList<float> > valsList;
-        foreach (const QString &line, lines) {
-            QList<float> vals;
-            foreach (const QString &word, line.split(QRegExp(" *, *"), QString::SkipEmptyParts)) {
-                bool ok;
-                const float val = word.toFloat(&ok);
-                vals.append(val);
-                isUChar = isUChar && (val == float(uchar(val)));
-            }
-            if (!vals.isEmpty())
-                valsList.append(vals);
-        }
-
-        Mat m(valsList.size(), valsList[0].size(), CV_32FC1);
-        for (int i=0; i<valsList.size(); i++)
-            for (int j=0; j<valsList[i].size(); j++)
-                m.at<float>(i,j) = valsList[i][j];
-
-        if (isUChar) m.convertTo(m, CV_8U);
-        return Template(m);
-    }
-
-    void write(const Template &t) const
-    {
-        const Mat &m = t.m();
-        if (t.size() != 1) qFatal("Only supports single matrix templates.");
-        if (m.channels() != 1) qFatal("Only supports single channel matrices.");
-
-        QStringList lines; lines.reserve(m.rows);
-        for (int r=0; r<m.rows; r++) {
-            QStringList elements; elements.reserve(m.cols);
-            for (int c=0; c<m.cols; c++)
-                elements.append(OpenCVUtils::elemToString(m, r, c));
-            lines.append(elements.join(","));
-        }
-
-        QtUtils::writeFile(file, lines);
-    }
-};
-
-BR_REGISTER(Format, csvFormat)
-
-/*!
- * \ingroup formats
- * \brief Reads image files.
- * \author Josh Klontz \cite jklontz
- */
-class DefaultFormat : public Format
-{
-    Q_OBJECT
-
-    Template read() const
-    {
-        Template t;
-
-        if (file.name.startsWith("http://") || file.name.startsWith("https://") || file.name.startsWith("www.")) {
-            if (Factory<Format>::names().contains("url")) {
-                File urlFile = file;
-                urlFile.name.append(".url");
-                QScopedPointer<Format> url(Factory<Format>::make(urlFile));
-                t = url->read();
-            }
-        } else {
-            Mat m = imread(file.resolved().toStdString());
-            if (m.data) {
-                t.append(m);
-            } else {
-                videoFormat videoReader;
-                videoReader.file = file;
-                t = videoReader.read();
-            }
-        }
-
-        return t;
-    }
-
-    void write(const Template &t) const
-    {
-        if (t.size() > 1) {
-            videoFormat videoWriter;
-            videoWriter.file = file;
-            videoWriter.write(t);
-        } else if (t.size() == 1) {
-            QtUtils::touchDir(QDir(file.path()));
-            imwrite(file.name.toStdString(), t);
-        }
-    }
-};
-
-BR_REGISTER(Format, DefaultFormat)
-
-/*!
- * \ingroup formats
- * \brief Reads a NIST LFFS file.
- * \author Josh Klontz \cite jklontz
- */
-class lffsFormat : public Format
-{
-    Q_OBJECT
-
-    Template read() const
-    {
-        QByteArray byteArray;
-        QtUtils::readFile(file.name, byteArray);
-        return Mat(1, byteArray.size(), CV_8UC1, byteArray.data()).clone();
-    }
-
-    void write(const Template &t) const
-    {
-        QByteArray byteArray((const char*)t.m().data, t.m().total()*t.m().elemSize());
-        QtUtils::writeFile(file.name, byteArray);
-    }
-};
-
-BR_REGISTER(Format, lffsFormat)
-
-/*!
- * \ingroup formats
- * \brief Reads a NIST BEE similarity matrix.
- * \author Josh Klontz \cite jklontz
- */
-class mtxFormat : public Format
-{
-    Q_OBJECT
-
-    Template read() const
-    {
-        QString target, query;
-        Template result = BEE::readMatrix(file, &target, &query);
-        result.file.set("Target", target);
-        result.file.set("Query", query);
-        return result;
-    }
-
-    void write(const Template &t) const
-    {
-        BEE::writeMatrix(t, file);
-    }
-};
-
-BR_REGISTER(Format, mtxFormat)
-
-/*!
- * \ingroup formats
- * \brief Reads a NIST BEE mask matrix.
- * \author Josh Klontz \cite jklontz
- */
-class maskFormat : public mtxFormat
-{
-    Q_OBJECT
-};
-
-BR_REGISTER(Format, maskFormat)
-
-/*!
- * \ingroup formats
- * \brief MATLAB <tt>.mat</tt> format.
- * \author Josh Klontz \cite jklontz
- * http://www.mathworks.com/help/pdf_doc/matlab/matfile_format.pdf
- * \note matFormat is known not to work with compressed matrices
- */
-class matFormat : public Format
-{
-    Q_OBJECT
-
-    struct Element
-    {
-        // It is always best to cast integers to a Qt integer type, such as qint16 or quint32, when reading and writing.
-        // This ensures that you always know exactly what size integers you are reading and writing, no matter what the
-        // underlying platform and architecture the application happens to be running on.
-        // http://qt-project.org/doc/qt-4.8/datastreamformat.html
-        quint32 type, bytes;
-        QByteArray data;
-        Element() : type(0), bytes(0) {}
-        Element(QDataStream &stream)
-            : type(0), bytes(0)
-        {
-            // Read first 4 bytes into type (32 bit integer),
-            // specifying the type of data used
-            if (stream.readRawData((char*)&type, 4) != 4)
-                qFatal("Unexpected end of file.");
-
-            if (type >= 1 << 16) {
-                // Small data format
-                bytes = type;
-                type = type & 0x0000FFFF;
-                bytes = bytes >> 16;
-            } else {
-                // Regular format
-                // Read 4 bytes into bytes (32 bit integer),
-                // specifying the size of the element
-                if (stream.readRawData((char*)&bytes, 4) != 4)
-                    qFatal("Unexpected end of file.");
-            }
-
-            // Set the size of data to bytes
-            data.resize(bytes);
-
-            // Read bytes amount of data from the file into data
-            if (int(bytes) != stream.readRawData(data.data(), bytes))
-                qFatal("Unexpected end of file.");
-
-            // Alignment
-            int skipBytes = (bytes < 4) ? (4 - bytes) : (8 - bytes%8)%8;
-            if (skipBytes != 0) stream.skipRawData(skipBytes);
-        }
-    };
-
-    Template read() const
-    {
-        QByteArray byteArray;
-        QtUtils::readFile(file, byteArray);
-        QDataStream f(byteArray);
-
-        { // Check header
-            QByteArray header(128, 0);
-            f.readRawData(header.data(), 128);
-            if (!header.startsWith("MATLAB 5.0 MAT-file"))
-                qFatal("Invalid MAT header.");
-        }
-
-        Template t(file);
-
-        while (!f.atEnd()) {
-            Element element(f);
-
-            // miCOMPRESSED
-            if (element.type == 15) {
-                // Prepend the number of bytes to element.data
-                element.data.prepend((char*)&element.bytes, 4); // Qt zlib wrapper requires this to preallocate the buffer
-                QDataStream uncompressed(qUncompress(element.data));
-                element = Element(uncompressed);
-            }
-
-            // miMATRIX
-            if (element.type == 14) {
-                QDataStream matrix(element.data);
-                qint32 rows = 0, columns = 0;
-                int matrixType = 0;
-                QByteArray matrixData;
-                while (!matrix.atEnd()) {
-                    Element subelement(matrix);
-                    if (subelement.type == 5) { // Dimensions array
-                        if (subelement.bytes == 8) {
-                            rows = ((qint32*)subelement.data.data())[0];
-                            columns = ((qint32*)subelement.data.data())[1];
-                        } else {
-                            qWarning("matFormat::read can only handle 2D arrays.");
-                        }
-                    } else if (subelement.type == 7) { //miSINGLE
-                        matrixType = CV_32FC1;
-                        matrixData = subelement.data;
-                    } else if (subelement.type == 9) { //miDOUBLE
-                        matrixType = CV_64FC1;
-                        matrixData = subelement.data;
-                    }
-                }
-
-                if ((rows > 0) && (columns > 0) && (matrixType != 0) && !matrixData.isEmpty()) {
-                    Mat transposed;
-                    transpose(Mat(columns, rows, matrixType, matrixData.data()), transposed);
-                    t.append(transposed);
-                }
-            }
-        }
-
-        return t;
-    }
-
-    void write(const Template &t) const
-    {
-        QByteArray data;
-        QDataStream stream(&data, QFile::WriteOnly);
-
-        { // Header
-            QByteArray header = "MATLAB 5.0 MAT-file; Made with OpenBR | www.openbiometrics.org\n";
-            QByteArray buffer(116-header.size(), 0);
-            stream.writeRawData(header.data(), header.size());
-            stream.writeRawData(buffer.data(), buffer.size());
-            quint64 subsystem = 0;
-            quint16 version = 0x0100;
-            const char *endianness = "IM";
-            stream.writeRawData((const char*)&subsystem, 8);
-            stream.writeRawData((const char*)&version, 2);
-            stream.writeRawData(endianness, 2);
-        }
-
-        for (int i=0; i<t.size(); i++) {
-            const Mat &m = t[i];
-            if (m.channels() != 1) qFatal("Only supports single channel matrices.");
-
-            QByteArray subdata;
-            QDataStream substream(&subdata, QFile::WriteOnly);
-
-            {  // Array Flags
-                quint32 type = 6;
-                quint32 bytes = 8;
-                quint64 arrayClass = 0;
-                switch (m.type()) {
-                  case CV_64FC1: arrayClass = 6; break;
-                  case CV_32FC1: arrayClass = 7; break;
-                  case CV_8UC1: arrayClass = 8; break;
-                  case CV_8SC1: arrayClass = 9; break;
-                  case CV_16UC1: arrayClass = 10; break;
-                  case CV_16SC1: arrayClass = 11; break;
-                  case CV_32SC1: arrayClass = 12; break;
-                  default: qFatal("Unsupported matrix class.");
-                }
-                substream.writeRawData((const char*)&type, 4);
-                substream.writeRawData((const char*)&bytes, 4);
-                substream.writeRawData((const char*)&arrayClass, 8);
-            }
-
-            { // Dimensions Array
-                quint32 type = 5;
-                quint32 bytes = 8;
-                substream.writeRawData((const char*)&type, 4);
-                substream.writeRawData((const char*)&bytes, 4);
-                substream.writeRawData((const char*)&m.rows, 4);
-                substream.writeRawData((const char*)&m.cols, 4);
-            }
-
-            { // Array Name
-                QByteArray name(qPrintable(QString("OpenBR_%1").arg(QString::number(i))));
-                quint32 type = 1;
-                quint32 bytes = name.size();
-                QByteArray buffer((8 - bytes%8)%8, 0);
-                substream.writeRawData((const char*)&type, 4);
-                substream.writeRawData((const char*)&bytes, 4);
-                substream.writeRawData(name.data(), name.size());
-                substream.writeRawData(buffer.data(), buffer.size());
-            }
-
-            { // Real part
-                quint32 type = 0;
-                switch (m.type()) {
-                  case CV_8SC1:  type = 1; break;
-                  case CV_8UC1:  type = 2; break;
-                  case CV_16SC1: type = 3; break;
-                  case CV_16UC1: type = 4; break;
-                  case CV_32SC1: type = 5; break;
-                  case CV_32FC1: type = 7; break;
-                  case CV_64FC1: type = 9; break;
-                  default: qFatal("Unsupported matrix type.");
-                }
-                quint32 bytes = m.elemSize() * m.rows * m.cols;
-                QByteArray buffer((8 - bytes%8)%8, 0);
-                Mat transposed;
-                transpose(m, transposed);
-                substream.writeRawData((const char*)&type, 4);
-                substream.writeRawData((const char*)&bytes, 4);
-                substream.writeRawData((const char*)transposed.data, bytes);
-                substream.writeRawData(buffer.data(), buffer.size());
-            }
-
-            { // Matrix
-                quint32 type = 14;
-                quint32 bytes = subdata.size();
-                stream.writeRawData((const char*)&type, 4);
-                stream.writeRawData((const char*)&bytes, 4);
-                stream.writeRawData(subdata.data(), subdata.size());
-            }
-        }
-
-        QtUtils::writeFile(file, data);
-    }
-};
-
-BR_REGISTER(Format, matFormat)
-
-/*!
- * \ingroup formats
- * \brief Returns an empty matrix.
- * \author Josh Klontz \cite jklontz
- */
-class nullFormat : public Format
-{
-    Q_OBJECT
-
-    Template read() const
-    {
-        return Template(file, Mat());
-    }
-
-    void write(const Template &t) const
-    {
-        (void)t;
-    }
-};
-
-BR_REGISTER(Format, nullFormat)
-
-/*!
- * \ingroup formats
- * \brief RAW format
- *
- * http://www.nist.gov/srd/nistsd27.cfm
- * \author Josh Klontz \cite jklontz
- */
-class rawFormat : public Format
-{
-    Q_OBJECT
-    static QHash<QString, QHash<QString,QSize> > imageSizes; // QHash<Path, QHash<File,Size> >
-
-    Template read() const
-    {
-        QString path = file.path();
-        if (!imageSizes.contains(path)) {
-            static QMutex mutex;
-            QMutexLocker locker(&mutex);
-
-            if (!imageSizes.contains(path)) {
-                const QString imageSize = path+"/ImageSize.txt";
-                QStringList lines;
-                if (QFileInfo(imageSize).exists()) {
-                    lines = QtUtils::readLines(imageSize);
-                    lines.removeFirst(); // Remove header
-                }
-
-                QHash<QString,QSize> sizes;
-                QRegExp whiteSpace("\\s+");
-                foreach (const QString &line, lines) {
-                    QStringList words = line.split(whiteSpace);
-                    if (words.size() != 3) continue;
-                    sizes.insert(words[0], QSize(words[2].toInt(), words[1].toInt()));
-                }
-
-                imageSizes.insert(path, sizes);
-            }
-        }
-
-        QByteArray data;
-        QtUtils::readFile(file, data);
-
-        QSize size = imageSizes[path][file.baseName()];
-        if (!size.isValid()) size = QSize(800,768);
-        if (data.size() != size.width() * size.height())
-            qFatal("Expected %d*%d bytes, got %d.", size.height(), size.width(), data.size());
-        return Template(file, Mat(size.height(), size.width(), CV_8UC1, data.data()).clone());
-    }
-
-    void write(const Template &t) const
-    {
-        QtUtils::writeFile(file, QByteArray().setRawData((const char*)t.m().data, t.m().total() * t.m().elemSize()));
-    }
-};
-
-QHash<QString, QHash<QString,QSize> > rawFormat::imageSizes;
-
-BR_REGISTER(Format, rawFormat)
-
-/*!
- * \ingroup formats
- * \brief Retrieves an image from a webcam.
- * \author Josh Klontz \cite jklontz
- */
-class webcamFormat : public Format
-{
-    Q_OBJECT
-
-    Template read() const
-    {
-        static QScopedPointer<VideoCapture> videoCapture;
-
-        if (videoCapture.isNull())
-            videoCapture.reset(new VideoCapture(0));
-
-        Mat m;
-        videoCapture->read(m);
-        return Template(m);
-    }
-
-    void write(const Template &t) const
-    {
-        (void) t;
-        qFatal("Not supported.");
-    }
-};
-
-BR_REGISTER(Format, webcamFormat)
-
-/*!
- * \ingroup formats
- * \brief Decodes images from Base64 xml
- * \author Scott Klum \cite sklum
- * \author Josh Klontz \cite jklontz
- */
-class xmlFormat : public Format
-{
-    Q_OBJECT
-
-    Template read() const
-    {
-        Template t;
-
-#ifndef BR_EMBEDDED
-        QString fileName = file.get<QString>("path") + file.name;
-
-        QDomDocument doc(fileName);
-        QFile f(fileName);
-
-        if (!f.open(QIODevice::ReadOnly)) qFatal("Unable to open %s for reading.", qPrintable(file.flat()));
-        if (!doc.setContent(&f)) qWarning("Unable to parse %s.", qPrintable(file.flat()));
-        f.close();
-
-        QDomElement docElem = doc.documentElement();
-        QDomNode subject = docElem.firstChild();
-        while (!subject.isNull()) {
-            QDomNode fileNode = subject.firstChild();
-
-            while (!fileNode.isNull()) {
-                QDomElement e = fileNode.toElement();
-
-                if (e.tagName() == "FORMAL_IMG") {
-                    QByteArray byteArray = QByteArray::fromBase64(qPrintable(e.text()));
-                    Mat m = imdecode(Mat(3, byteArray.size(), CV_8UC3, byteArray.data()), CV_LOAD_IMAGE_COLOR);
-                    if (!m.data) qWarning("xmlFormat::read failed to decode image data.");
-                    t.append(m);
-                } else if ((e.tagName() == "RELEASE_IMG") ||
-                           (e.tagName() == "PREBOOK_IMG") ||
-                           (e.tagName() == "LPROFILE") ||
-                           (e.tagName() == "RPROFILE")) {
-                    // Ignore these other image fields for now
-                } else {
-                    t.file.set(e.tagName(), e.text());
-                }
-
-                fileNode = fileNode.nextSibling();
-            }
-            subject = subject.nextSibling();
-        }
-
-        // Calculate age
-        if (t.file.contains("DOB")) {
-            const QDate dob = QDate::fromString(t.file.get<QString>("DOB").left(10), "yyyy-MM-dd");
-            const QDate current = QDate::currentDate();
-            int age = current.year() - dob.year();
-            if (current.month() < dob.month()) age--;
-            t.file.set("Age", age);
-        }
-#endif // BR_EMBEDDED
-
-        return t;
-    }
-
-    void write(const Template &t) const
-    {
-        QStringList lines;
-        lines.append("<?xml version=\"1.0\" standalone=\"yes\"?>");
-        lines.append("<openbr-xml-format>");
-        lines.append("\t<xml-data>");
-        foreach (const QString &key, t.file.localKeys()) {
-            if ((key == "Index") || (key == "Label")) continue;
-            lines.append("\t\t<"+key+">"+QtUtils::toString(t.file.value(key))+"</"+key+">");
-        }
-        std::vector<uchar> data;
-        imencode(".jpg",t.m(),data);
-        QByteArray byteArray = QByteArray::fromRawData((const char*)data.data(), data.size());
-        lines.append("\t\t<FORMAL_IMG>"+byteArray.toBase64()+"</FORMAL_IMG>");
-        lines.append("\t</xml-data>");
-        lines.append("</openbr-xml-format>");
-        QtUtils::writeFile(file, lines);
-    }
-};
-
-BR_REGISTER(Format, xmlFormat)
-
-/*!
- * \ingroup formats
- * \brief Reads in scores or ground truth from a text table.
- * \author Josh Klontz \cite jklontz
- *
- * Example of the format:
- * \code
- * 2.2531514    FALSE   99990377    99990164
- * 2.2549822    TRUE    99990101    99990101
- * \endcode
- */
-class scoresFormat : public Format
-{
-    Q_OBJECT
-    Q_PROPERTY(int column READ get_column WRITE set_column RESET reset_column STORED false)
-    Q_PROPERTY(bool groundTruth READ get_groundTruth WRITE set_groundTruth RESET reset_groundTruth STORED false)
-    Q_PROPERTY(QString delimiter READ get_delimiter WRITE set_delimiter RESET reset_delimiter STORED false)
-    BR_PROPERTY(int, column, 0)
-    BR_PROPERTY(bool, groundTruth, false)
-    BR_PROPERTY(QString, delimiter, "\t")
-
-    Template read() const
-    {
-        QFile f(file.name);
-        if (!f.open(QFile::ReadOnly | QFile::Text))
-            qFatal("Failed to open %s for reading.", qPrintable(f.fileName()));
-        QList<float> values;
-        while (!f.atEnd()) {
-            const QStringList words = QString(f.readLine()).split(delimiter);
-            if (words.size() <= column) qFatal("Expected file to have at least %d columns.", column+1);
-            const QString &word = words[column];
-            bool ok;
-            float value = word.toFloat(&ok);
-            if (!ok) value = (QtUtils::toBool(word) ? BEE::Match : BEE::NonMatch);
-            values.append(value);
-        }
-        if (values.size() == 1)
-            qWarning("Only one value read, double check file line endings.");
-        Mat result = OpenCVUtils::toMat(values);
-        if (groundTruth) result.convertTo(result, CV_8U);
-        return result;
-    }
-
-    void write(const Template &t) const
-    {
-        (void) t;
-        qFatal("Not implemented.");
-    }
-};
-
-BR_REGISTER(Format, scoresFormat)
-
-/*!
- * \ingroup formats
- * \brief Reads FBI EBTS transactions.
- * \author Scott Klum \cite sklum
- * https://www.fbibiospecs.org/ebts.html
- */
-class ebtsFormat : public Format
-{
-    Q_OBJECT
-
-    struct Field {
-        int type;
-        QList<QByteArray> data;
-    };
-
-    struct Record {
-        int type;
-        quint32 bytes;
-        int position; // Starting position of record
-
-        QHash<int,QList<QByteArray> > fields;
-    };
-
-    quint32 recordBytes(const QByteArray &byteArray, const float recordType, int from) const
-    {
-        bool ok;
-        quint32 size;
-
-        if (recordType == 4 || recordType == 7) {
-            // read first four bytes
-            ok = true;
-            size = qFromBigEndian<quint32>((const uchar*)byteArray.mid(from,4).constData());
-        } else {
-            int index = byteArray.indexOf(QChar(0x1D), from);
-            size = byteArray.mid(from, index-from).split(':').last().toInt(&ok);
-        }
-
-        return ok ? size : -1;
-    }
-
-    void parseRecord(const QByteArray &byteArray, Record &record) const
-    {
-        if (record.type == 4 || record.type == 7) {
-            // Just a binary blob
-            // Read everything after the first four bytes
-            // Not current supported
-        } else {
-            // Continue reading fields until we get all the data
-            unsigned int position = record.position;
-            while (position < record.position + record.bytes) {
-                int index = byteArray.indexOf(QChar(0x1D), position);
-                Field field = parseField(byteArray.mid(position, index-position),QChar(0x1F));
-                if (field.type == 999 ) {
-                    // Data begin after the field identifier and the colon
-                    int dataBegin = byteArray.indexOf(':', position)+1;
-                    field.data.clear();
-                    field.data.append(byteArray.mid(dataBegin, record.bytes-(dataBegin-record.position)));
-
-                    // Data fields are always last in the record
-                    record.fields.insert(field.type,field.data);
-                    break;
-                }
-                // Advance the position accounting for the separator
-                position += index-position+1;
-                record.fields.insert(field.type,field.data);
-            }
-        }
-    }
-
-    Field parseField(const QByteArray &byteArray, const QChar &sep) const
-    {
-        bool ok;
-        Field f;
-
-        QList<QByteArray> data = byteArray.split(':');
-
-        f.type = data.first().split('.').last().toInt(&ok);
-        f.data = data.last().split(sep.toLatin1());
-
-        return f;
-    }
-
-    Template read() const
-    {
-        QByteArray byteArray;
-        QtUtils::readFile(file, byteArray);
-
-        Template t;
-
-        Mat m;
-
-        QList<Record> records;
-
-        // Read the type one record (every EBTS file will have one of these)
-        Record r1;
-        r1.type = 1;
-        r1.position = 0;
-        r1.bytes = recordBytes(byteArray,r1.type,r1.position);
-
-        // The fields in a type 1 record are strictly defined
-        QList<QByteArray> data = byteArray.mid(r1.position,r1.bytes).split(QChar(0x1D).toLatin1());
-        foreach (const QByteArray &datum, data) {
-            Field f = parseField(datum,QChar(0x1F));
-            r1.fields.insert(f.type,f.data);
-        }
-
-        records.append(r1);
-
-        // Read the type two record (every EBTS file will have one of these)
-        Record r2;
-        r2.type = 2;
-        r2.position = r1.bytes;
-        r2.bytes = recordBytes(byteArray,r2.type,r2.position);
-
-        // The fields in a type 2 record are strictly defined
-        data = byteArray.mid(r2.position,r2.bytes).split(QChar(0x1D).toLatin1());
-        foreach (const QByteArray &datum, data) {
-            Field f = parseField(datum,QChar(0x1F));
-            r2.fields.insert(f.type,f.data);
-        }
-
-        // Demographics
-        if (r2.fields.contains(18)) {
-            QString name = r2.fields.value(18).first();
-            QStringList names = name.split(',');
-            t.file.set("FIRSTNAME", names.at(1));
-            t.file.set("LASTNAME", names.at(0));
-        }
-
-        if (r2.fields.contains(22)) t.file.set("DOB", r2.fields.value(22).first().toInt());
-        if (r2.fields.contains(24)) t.file.set("GENDER", QString(r2.fields.value(24).first()));
-        if (r2.fields.contains(25)) t.file.set("RACE", QString(r2.fields.value(25).first()));
-
-        if (t.file.contains("DOB")) {
-            const QDate dob = QDate::fromString(t.file.get<QString>("DOB"), "yyyyMMdd");
-            const QDate current = QDate::currentDate();
-            int age = current.year() - dob.year();
-            if (current.month() < dob.month()) age--;
-            t.file.set("Age", age);
-        }
-
-        records.append(r2);
-
-        // The third field of the first record contains informations about all the remaining records in the transaction
-        // We don't care about the first two and the final items
-        QList<QByteArray> recordTypes = r1.fields.value(3);
-        for (int i=2; i<recordTypes.size()-1; i++) {
-            // The first two bytes indicate the record index (and we don't want the separator), but we only care about the type
-            QByteArray recordType = recordTypes[i].mid(3);
-            Record r;
-            r.type = recordType.toInt();
-            records.append(r);
-        }
-
-        QList<int> frontalIdxs;
-        int position = r1.bytes + r2.bytes;
-        for (int i=2; i<records.size(); i++) {
-            records[i].position = position;
-            records[i].bytes = recordBytes(byteArray,records[i].type,position);
-
-            parseRecord(byteArray, records[i]);
-            if (records[i].type == 10) frontalIdxs.append(i);
-            position += records[i].bytes;
-        }
-
-        if (!frontalIdxs.isEmpty()) {
-            // We use the first type 10 record to get the frontal
-            QByteArray frontal = records[frontalIdxs.first()].fields.value(999).first();
-            m = imdecode(Mat(3, frontal.size(), CV_8UC3, frontal.data()), CV_LOAD_IMAGE_COLOR);
-            if (!m.data) qWarning("ebtsFormat::read failed to decode image data.");
-            t.m() = m;
-        } else qWarning("ebtsFormat::cannot find image data within file.");
-
-        return t;
-    }
-
-    void write(const Template &t) const
-    {
-        (void) t;
-        qFatal("Writing EBTS files is not supported.");
-    }
-};
-
-BR_REGISTER(Format, ebtsFormat)
-
-} // namespace br
-
-#include "format.moc"
+#include <openbr/plugins/openbr_internal.h>
+#include <openbr/core/qtutils.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup formats
+ * \brief A simple binary matrix format.
+ * \author Josh Klontz \cite jklontz
+ * First 4 bytes indicate the number of rows.
+ * Second 4 bytes indicate the number of columns.
+ * The rest of the bytes are 32-bit floating data elements in row-major order.
+ */
+class binaryFormat : public Format
+{
+    Q_OBJECT
+    Q_PROPERTY(bool raw READ get_raw WRITE set_raw RESET reset_raw STORED false)
+    BR_PROPERTY(bool, raw, false)
+
+    Template read() const
+    {
+        QByteArray data;
+        QtUtils::readFile(file, data);
+        if (raw) {
+            return Template(file, Mat(1, data.size(), CV_8UC1, data.data()).clone());
+        } else {
+            return Template(file, Mat(((quint32*)data.data())[0],
+                                      ((quint32*)data.data())[1],
+                                      CV_32FC1,
+                                      data.data()+8).clone());
+        }
+    }
+
+    void write(const Template &t) const
+    {
+        QFile f(file);
+        QtUtils::touchDir(f);
+        if (!f.open(QFile::WriteOnly))
+            qFatal("Failed to open %s for writing.", qPrintable(file));
+
+        Mat m;
+        if (!raw) {
+            if (t.m().type() != CV_32FC1)
+                t.m().convertTo(m, CV_32F);
+            else m = t.m();
+
+            if (m.channels() != 1) qFatal("Only supports single channel matrices.");
+
+            f.write((const char *) &m.rows, 4);
+            f.write((const char *) &m.cols, 4);
+        }
+        else m =  t.m();
+
+        qint64 rowSize = m.cols * sizeof(float);
+        for (int i=0; i < m.rows; i++)
+        {
+            f.write((const char *) m.row(i).data, rowSize);
+        }
+        f.close();
+    }
+};
+
+BR_REGISTER(Format, binaryFormat)
+
+} // namespace br
+
+#include "binary.moc"
+#include <QRegularExpression>
+
+#include <openbr/plugins/openbr_internal.h>
+#include <openbr/core/opencvutils.h>
+#include <openbr/core/qtutils.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup formats
+ * \brief Reads a comma separated value file.
+ * \author Josh Klontz \cite jklontz
+ */
+class csvFormat : public Format
+{
+    Q_OBJECT
+
+    Template read() const
+    {
+        QFile f(file.name);
+        f.open(QFile::ReadOnly);
+        QStringList lines(QString(f.readAll()).split(QRegularExpression("[\n|\r\n|\r]"), QString::SkipEmptyParts));
+        f.close();
+
+        bool isUChar = true;
+        QList< QList<float> > valsList;
+        foreach (const QString &line, lines) {
+            QList<float> vals;
+            foreach (const QString &word, line.split(QRegExp(" *, *"), QString::SkipEmptyParts)) {
+                bool ok;
+                const float val = word.toFloat(&ok);
+                vals.append(val);
+                isUChar = isUChar && (val == float(uchar(val)));
+            }
+            if (!vals.isEmpty())
+                valsList.append(vals);
+        }
+
+        Mat m(valsList.size(), valsList[0].size(), CV_32FC1);
+        for (int i=0; i<valsList.size(); i++)
+            for (int j=0; j<valsList[i].size(); j++)
+                m.at<float>(i,j) = valsList[i][j];
+
+        if (isUChar) m.convertTo(m, CV_8U);
+        return Template(m);
+    }
+
+    void write(const Template &t) const
+    {
+        const Mat &m = t.m();
+        if (t.size() != 1) qFatal("Only supports single matrix templates.");
+        if (m.channels() != 1) qFatal("Only supports single channel matrices.");
+
+        QStringList lines; lines.reserve(m.rows);
+        for (int r=0; r<m.rows; r++) {
+            QStringList elements; elements.reserve(m.cols);
+            for (int c=0; c<m.cols; c++)
+                elements.append(OpenCVUtils::elemToString(m, r, c));
+            lines.append(elements.join(","));
+        }
+
+        QtUtils::writeFile(file, lines);
+    }
+};
+
+BR_REGISTER(Format, csvFormat)
+
+} // namespace br
+
+#include "csv.moc"
+#include <QtEndian>
+#include <opencv2/highgui/highgui.hpp>
+
+#include <openbr/plugins/openbr_internal.h>
+#include <openbr/core/qtutils.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup formats
+ * \brief Reads FBI EBTS transactions.
+ * \author Scott Klum \cite sklum
+ * https://www.fbibiospecs.org/ebts.html
+ */
+class ebtsFormat : public Format
+{
+    Q_OBJECT
+
+    struct Field {
+        int type;
+        QList<QByteArray> data;
+    };
+
+    struct Record {
+        int type;
+        quint32 bytes;
+        int position; // Starting position of record
+
+        QHash<int,QList<QByteArray> > fields;
+    };
+
+    quint32 recordBytes(const QByteArray &byteArray, const float recordType, int from) const
+    {
+        bool ok;
+        quint32 size;
+
+        if (recordType == 4 || recordType == 7) {
+            // read first four bytes
+            ok = true;
+            size = qFromBigEndian<quint32>((const uchar*)byteArray.mid(from,4).constData());
+        } else {
+            int index = byteArray.indexOf(QChar(0x1D), from);
+            size = byteArray.mid(from, index-from).split(':').last().toInt(&ok);
+        }
+
+        return ok ? size : -1;
+    }
+
+    void parseRecord(const QByteArray &byteArray, Record &record) const
+    {
+        if (record.type == 4 || record.type == 7) {
+            // Just a binary blob
+            // Read everything after the first four bytes
+            // Not current supported
+        } else {
+            // Continue reading fields until we get all the data
+            unsigned int position = record.position;
+            while (position < record.position + record.bytes) {
+                int index = byteArray.indexOf(QChar(0x1D), position);
+                Field field = parseField(byteArray.mid(position, index-position),QChar(0x1F));
+                if (field.type == 999 ) {
+                    // Data begin after the field identifier and the colon
+                    int dataBegin = byteArray.indexOf(':', position)+1;
+                    field.data.clear();
+                    field.data.append(byteArray.mid(dataBegin, record.bytes-(dataBegin-record.position)));
+
+                    // Data fields are always last in the record
+                    record.fields.insert(field.type,field.data);
+                    break;
+                }
+                // Advance the position accounting for the separator
+                position += index-position+1;
+                record.fields.insert(field.type,field.data);
+            }
+        }
+    }
+
+    Field parseField(const QByteArray &byteArray, const QChar &sep) const
+    {
+        bool ok;
+        Field f;
+
+        QList<QByteArray> data = byteArray.split(':');
+
+        f.type = data.first().split('.').last().toInt(&ok);
+        f.data = data.last().split(sep.toLatin1());
+
+        return f;
+    }
+
+    Template read() const
+    {
+        QByteArray byteArray;
+        QtUtils::readFile(file, byteArray);
+
+        Template t;
+
+        Mat m;
+
+        QList<Record> records;
+
+        // Read the type one record (every EBTS file will have one of these)
+        Record r1;
+        r1.type = 1;
+        r1.position = 0;
+        r1.bytes = recordBytes(byteArray,r1.type,r1.position);
+
+        // The fields in a type 1 record are strictly defined
+        QList<QByteArray> data = byteArray.mid(r1.position,r1.bytes).split(QChar(0x1D).toLatin1());
+        foreach (const QByteArray &datum, data) {
+            Field f = parseField(datum,QChar(0x1F));
+            r1.fields.insert(f.type,f.data);
+        }
+
+        records.append(r1);
+
+        // Read the type two record (every EBTS file will have one of these)
+        Record r2;
+        r2.type = 2;
+        r2.position = r1.bytes;
+        r2.bytes = recordBytes(byteArray,r2.type,r2.position);
+
+        // The fields in a type 2 record are strictly defined
+        data = byteArray.mid(r2.position,r2.bytes).split(QChar(0x1D).toLatin1());
+        foreach (const QByteArray &datum, data) {
+            Field f = parseField(datum,QChar(0x1F));
+            r2.fields.insert(f.type,f.data);
+        }
+
+        // Demographics
+        if (r2.fields.contains(18)) {
+            QString name = r2.fields.value(18).first();
+            QStringList names = name.split(',');
+            t.file.set("FIRSTNAME", names.at(1));
+            t.file.set("LASTNAME", names.at(0));
+        }
+
+        if (r2.fields.contains(22)) t.file.set("DOB", r2.fields.value(22).first().toInt());
+        if (r2.fields.contains(24)) t.file.set("GENDER", QString(r2.fields.value(24).first()));
+        if (r2.fields.contains(25)) t.file.set("RACE", QString(r2.fields.value(25).first()));
+
+        if (t.file.contains("DOB")) {
+            const QDate dob = QDate::fromString(t.file.get<QString>("DOB"), "yyyyMMdd");
+            const QDate current = QDate::currentDate();
+            int age = current.year() - dob.year();
+            if (current.month() < dob.month()) age--;
+            t.file.set("Age", age);
+        }
+
+        records.append(r2);
+
+        // The third field of the first record contains informations about all the remaining records in the transaction
+        // We don't care about the first two and the final items
+        QList<QByteArray> recordTypes = r1.fields.value(3);
+        for (int i=2; i<recordTypes.size()-1; i++) {
+            // The first two bytes indicate the record index (and we don't want the separator), but we only care about the type
+            QByteArray recordType = recordTypes[i].mid(3);
+            Record r;
+            r.type = recordType.toInt();
+            records.append(r);
+        }
+
+        QList<int> frontalIdxs;
+        int position = r1.bytes + r2.bytes;
+        for (int i=2; i<records.size(); i++) {
+            records[i].position = position;
+            records[i].bytes = recordBytes(byteArray,records[i].type,position);
+
+            parseRecord(byteArray, records[i]);
+            if (records[i].type == 10) frontalIdxs.append(i);
+            position += records[i].bytes;
+        }
+
+        if (!frontalIdxs.isEmpty()) {
+            // We use the first type 10 record to get the frontal
+            QByteArray frontal = records[frontalIdxs.first()].fields.value(999).first();
+            m = imdecode(Mat(3, frontal.size(), CV_8UC3, frontal.data()), CV_LOAD_IMAGE_COLOR);
+            if (!m.data) qWarning("ebtsFormat::read failed to decode image data.");
+            t.m() = m;
+        } else qWarning("ebtsFormat::cannot find image data within file.");
+
+        return t;
+    }
+
+    void write(const Template &t) const
+    {
+        (void) t;
+        qFatal("Writing EBTS files is not supported.");
+    }
+};
+
+BR_REGISTER(Format, ebtsFormat)
+
+} // namespace br
+
+#include "ebts.moc"
+#include <openbr/plugins/openbr_internal.h>
+#include <openbr/core/qtutils.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup formats
+ * \brief Reads a NIST LFFS file.
+ * \author Josh Klontz \cite jklontz
+ */
+class lffsFormat : public Format
+{
+    Q_OBJECT
+
+    Template read() const
+    {
+        QByteArray byteArray;
+        QtUtils::readFile(file.name, byteArray);
+        return Mat(1, byteArray.size(), CV_8UC1, byteArray.data()).clone();
+    }
+
+    void write(const Template &t) const
+    {
+        QByteArray byteArray((const char*)t.m().data, t.m().total()*t.m().elemSize());
+        QtUtils::writeFile(file.name, byteArray);
+    }
+};
+
+BR_REGISTER(Format, lffsFormat)
+
+} // namespace br
+
+#include "lffs.moc"
+#include <openbr/plugins/openbr_internal.h>
+#include <openbr/core/qtutils.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup formats
+ * \brief MATLAB <tt>.mat</tt> format.
+ * \author Josh Klontz \cite jklontz
+ * http://www.mathworks.com/help/pdf_doc/matlab/matfile_format.pdf
+ * \note matFormat is known not to work with compressed matrices
+ */
+class matFormat : public Format
+{
+    Q_OBJECT
+
+    struct Element
+    {
+        // It is always best to cast integers to a Qt integer type, such as qint16 or quint32, when reading and writing.
+        // This ensures that you always know exactly what size integers you are reading and writing, no matter what the
+        // underlying platform and architecture the application happens to be running on.
+        // http://qt-project.org/doc/qt-4.8/datastreamformat.html
+        quint32 type, bytes;
+        QByteArray data;
+        Element() : type(0), bytes(0) {}
+        Element(QDataStream &stream)
+            : type(0), bytes(0)
+        {
+            // Read first 4 bytes into type (32 bit integer),
+            // specifying the type of data used
+            if (stream.readRawData((char*)&type, 4) != 4)
+                qFatal("Unexpected end of file.");
+
+            if (type >= 1 << 16) {
+                // Small data format
+                bytes = type;
+                type = type & 0x0000FFFF;
+                bytes = bytes >> 16;
+            } else {
+                // Regular format
+                // Read 4 bytes into bytes (32 bit integer),
+                // specifying the size of the element
+                if (stream.readRawData((char*)&bytes, 4) != 4)
+                    qFatal("Unexpected end of file.");
+            }
+
+            // Set the size of data to bytes
+            data.resize(bytes);
+
+            // Read bytes amount of data from the file into data
+            if (int(bytes) != stream.readRawData(data.data(), bytes))
+                qFatal("Unexpected end of file.");
+
+            // Alignment
+            int skipBytes = (bytes < 4) ? (4 - bytes) : (8 - bytes%8)%8;
+            if (skipBytes != 0) stream.skipRawData(skipBytes);
+        }
+    };
+
+    Template read() const
+    {
+        QByteArray byteArray;
+        QtUtils::readFile(file, byteArray);
+        QDataStream f(byteArray);
+
+        { // Check header
+            QByteArray header(128, 0);
+            f.readRawData(header.data(), 128);
+            if (!header.startsWith("MATLAB 5.0 MAT-file"))
+                qFatal("Invalid MAT header.");
+        }
+
+        Template t(file);
+
+        while (!f.atEnd()) {
+            Element element(f);
+
+            // miCOMPRESSED
+            if (element.type == 15) {
+                // Prepend the number of bytes to element.data
+                element.data.prepend((char*)&element.bytes, 4); // Qt zlib wrapper requires this to preallocate the buffer
+                QDataStream uncompressed(qUncompress(element.data));
+                element = Element(uncompressed);
+            }
+
+            // miMATRIX
+            if (element.type == 14) {
+                QDataStream matrix(element.data);
+                qint32 rows = 0, columns = 0;
+                int matrixType = 0;
+                QByteArray matrixData;
+                while (!matrix.atEnd()) {
+                    Element subelement(matrix);
+                    if (subelement.type == 5) { // Dimensions array
+                        if (subelement.bytes == 8) {
+                            rows = ((qint32*)subelement.data.data())[0];
+                            columns = ((qint32*)subelement.data.data())[1];
+                        } else {
+                            qWarning("matFormat::read can only handle 2D arrays.");
+                        }
+                    } else if (subelement.type == 7) { //miSINGLE
+                        matrixType = CV_32FC1;
+                        matrixData = subelement.data;
+                    } else if (subelement.type == 9) { //miDOUBLE
+                        matrixType = CV_64FC1;
+                        matrixData = subelement.data;
+                    }
+                }
+
+                if ((rows > 0) && (columns > 0) && (matrixType != 0) && !matrixData.isEmpty()) {
+                    Mat transposed;
+                    transpose(Mat(columns, rows, matrixType, matrixData.data()), transposed);
+                    t.append(transposed);
+                }
+            }
+        }
+
+        return t;
+    }
+
+    void write(const Template &t) const
+    {
+        QByteArray data;
+        QDataStream stream(&data, QFile::WriteOnly);
+
+        { // Header
+            QByteArray header = "MATLAB 5.0 MAT-file; Made with OpenBR | www.openbiometrics.org\n";
+            QByteArray buffer(116-header.size(), 0);
+            stream.writeRawData(header.data(), header.size());
+            stream.writeRawData(buffer.data(), buffer.size());
+            quint64 subsystem = 0;
+            quint16 version = 0x0100;
+            const char *endianness = "IM";
+            stream.writeRawData((const char*)&subsystem, 8);
+            stream.writeRawData((const char*)&version, 2);
+            stream.writeRawData(endianness, 2);
+        }
+
+        for (int i=0; i<t.size(); i++) {
+            const Mat &m = t[i];
+            if (m.channels() != 1) qFatal("Only supports single channel matrices.");
+
+            QByteArray subdata;
+            QDataStream substream(&subdata, QFile::WriteOnly);
+
+            {  // Array Flags
+                quint32 type = 6;
+                quint32 bytes = 8;
+                quint64 arrayClass = 0;
+                switch (m.type()) {
+                  case CV_64FC1: arrayClass = 6; break;
+                  case CV_32FC1: arrayClass = 7; break;
+                  case CV_8UC1: arrayClass = 8; break;
+                  case CV_8SC1: arrayClass = 9; break;
+                  case CV_16UC1: arrayClass = 10; break;
+                  case CV_16SC1: arrayClass = 11; break;
+                  case CV_32SC1: arrayClass = 12; break;
+                  default: qFatal("Unsupported matrix class.");
+                }
+                substream.writeRawData((const char*)&type, 4);
+                substream.writeRawData((const char*)&bytes, 4);
+                substream.writeRawData((const char*)&arrayClass, 8);
+            }
+
+            { // Dimensions Array
+                quint32 type = 5;
+                quint32 bytes = 8;
+                substream.writeRawData((const char*)&type, 4);
+                substream.writeRawData((const char*)&bytes, 4);
+                substream.writeRawData((const char*)&m.rows, 4);
+                substream.writeRawData((const char*)&m.cols, 4);
+            }
+
+            { // Array Name
+                QByteArray name(qPrintable(QString("OpenBR_%1").arg(QString::number(i))));
+                quint32 type = 1;
+                quint32 bytes = name.size();
+                QByteArray buffer((8 - bytes%8)%8, 0);
+                substream.writeRawData((const char*)&type, 4);
+                substream.writeRawData((const char*)&bytes, 4);
+                substream.writeRawData(name.data(), name.size());
+                substream.writeRawData(buffer.data(), buffer.size());
+            }
+
+            { // Real part
+                quint32 type = 0;
+                switch (m.type()) {
+                  case CV_8SC1:  type = 1; break;
+                  case CV_8UC1:  type = 2; break;
+                  case CV_16SC1: type = 3; break;
+                  case CV_16UC1: type = 4; break;
+                  case CV_32SC1: type = 5; break;
+                  case CV_32FC1: type = 7; break;
+                  case CV_64FC1: type = 9; break;
+                  default: qFatal("Unsupported matrix type.");
+                }
+                quint32 bytes = m.elemSize() * m.rows * m.cols;
+                QByteArray buffer((8 - bytes%8)%8, 0);
+                Mat transposed;
+                transpose(m, transposed);
+                substream.writeRawData((const char*)&type, 4);
+                substream.writeRawData((const char*)&bytes, 4);
+                substream.writeRawData((const char*)transposed.data, bytes);
+                substream.writeRawData(buffer.data(), buffer.size());
+            }
+
+            { // Matrix
+                quint32 type = 14;
+                quint32 bytes = subdata.size();
+                stream.writeRawData((const char*)&type, 4);
+                stream.writeRawData((const char*)&bytes, 4);
+                stream.writeRawData(subdata.data(), subdata.size());
+            }
+        }
+
+        QtUtils::writeFile(file, data);
+    }
+};
+
+BR_REGISTER(Format, matFormat)
+
+} // namespace br
+
+#include "mat.moc"
+#include <openbr/plugins/openbr_internal.h>
+#include <openbr/core/bee.h>
+
+namespace br
+{
+
+/*!
+ * \ingroup formats
+ * \brief Reads a NIST BEE similarity matrix.
+ * \author Josh Klontz \cite jklontz
+ */
+class mtxFormat : public Format
+{
+    Q_OBJECT
+
+    Template read() const
+    {
+        QString target, query;
+        Template result = BEE::readMatrix(file, &target, &query);
+        result.file.set("Target", target);
+        result.file.set("Query", query);
+        return result;
+    }
+
+    void write(const Template &t) const
+    {
+        BEE::writeMatrix(t, file);
+    }
+};
+
+BR_REGISTER(Format, mtxFormat)
+
+/*!
+ * \ingroup formats
+ * \brief Reads a NIST BEE mask matrix.
+ * \author Josh Klontz \cite jklontz
+ */
+class maskFormat : public mtxFormat
+{
+    Q_OBJECT
+};
+
+BR_REGISTER(Format, maskFormat)
+
+} // namespace br
+
+#include "mtx.moc"
+#include <openbr/plugins/openbr_internal.h>
+
+namespace br
+{
+
+/*!
+ * \ingroup formats
+ * \brief Returns an empty matrix.
+ * \author Josh Klontz \cite jklontz
+ */
+class nullFormat : public Format
+{
+    Q_OBJECT
+
+    Template read() const
+    {
+        return Template(file, cv::Mat());
+    }
+
+    void write(const Template &t) const
+    {
+        (void)t;
+    }
+};
+
+BR_REGISTER(Format, nullFormat)
+
+} // namespace br
+
+#include "null.moc"
+#include <openbr/plugins/openbr_internal.h>
+#include <openbr/core/qtutils.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup formats
+ * \brief RAW format
+ *
+ * http://www.nist.gov/srd/nistsd27.cfm
+ * \author Josh Klontz \cite jklontz
+ */
+class rawFormat : public Format
+{
+    Q_OBJECT
+    static QHash<QString, QHash<QString,QSize> > imageSizes; // QHash<Path, QHash<File,Size> >
+
+    Template read() const
+    {
+        QString path = file.path();
+        if (!imageSizes.contains(path)) {
+            static QMutex mutex;
+            QMutexLocker locker(&mutex);
+
+            if (!imageSizes.contains(path)) {
+                const QString imageSize = path+"/ImageSize.txt";
+                QStringList lines;
+                if (QFileInfo(imageSize).exists()) {
+                    lines = QtUtils::readLines(imageSize);
+                    lines.removeFirst(); // Remove header
+                }
+
+                QHash<QString,QSize> sizes;
+                QRegExp whiteSpace("\\s+");
+                foreach (const QString &line, lines) {
+                    QStringList words = line.split(whiteSpace);
+                    if (words.size() != 3) continue;
+                    sizes.insert(words[0], QSize(words[2].toInt(), words[1].toInt()));
+                }
+
+                imageSizes.insert(path, sizes);
+            }
+        }
+
+        QByteArray data;
+        QtUtils::readFile(file, data);
+
+        QSize size = imageSizes[path][file.baseName()];
+        if (!size.isValid()) size = QSize(800,768);
+        if (data.size() != size.width() * size.height())
+            qFatal("Expected %d*%d bytes, got %d.", size.height(), size.width(), data.size());
+        return Template(file, Mat(size.height(), size.width(), CV_8UC1, data.data()).clone());
+    }
+
+    void write(const Template &t) const
+    {
+        QtUtils::writeFile(file, QByteArray().setRawData((const char*)t.m().data, t.m().total() * t.m().elemSize()));
+    }
+};
+
+QHash<QString, QHash<QString,QSize> > rawFormat::imageSizes;
+
+BR_REGISTER(Format, rawFormat)
+
+} // namespace br
+
+#include "raw.moc"
+#include <openbr/plugins/openbr_internal.h>
+#include <openbr/core/qtutils.h>
+#include <openbr/core/opencvutils.h>
+#include <openbr/core/bee.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup formats
+ * \brief Reads in scores or ground truth from a text table.
+ * \author Josh Klontz \cite jklontz
+ *
+ * Example of the format:
+ * \code
+ * 2.2531514    FALSE   99990377    99990164
+ * 2.2549822    TRUE    99990101    99990101
+ * \endcode
+ */
+class scoresFormat : public Format
+{
+    Q_OBJECT
+    Q_PROPERTY(int column READ get_column WRITE set_column RESET reset_column STORED false)
+    Q_PROPERTY(bool groundTruth READ get_groundTruth WRITE set_groundTruth RESET reset_groundTruth STORED false)
+    Q_PROPERTY(QString delimiter READ get_delimiter WRITE set_delimiter RESET reset_delimiter STORED false)
+    BR_PROPERTY(int, column, 0)
+    BR_PROPERTY(bool, groundTruth, false)
+    BR_PROPERTY(QString, delimiter, "\t")
+
+    Template read() const
+    {
+        QFile f(file.name);
+        if (!f.open(QFile::ReadOnly | QFile::Text))
+            qFatal("Failed to open %s for reading.", qPrintable(f.fileName()));
+        QList<float> values;
+        while (!f.atEnd()) {
+            const QStringList words = QString(f.readLine()).split(delimiter);
+            if (words.size() <= column) qFatal("Expected file to have at least %d columns.", column+1);
+            const QString &word = words[column];
+            bool ok;
+            float value = word.toFloat(&ok);
+            if (!ok) value = (QtUtils::toBool(word) ? BEE::Match : BEE::NonMatch);
+            values.append(value);
+        }
+        if (values.size() == 1)
+            qWarning("Only one value read, double check file line endings.");
+        Mat result = OpenCVUtils::toMat(values);
+        if (groundTruth) result.convertTo(result, CV_8U);
+        return result;
+    }
+
+    void write(const Template &t) const
+    {
+        (void) t;
+        qFatal("Not implemented.");
+    }
+};
+
+BR_REGISTER(Format, scoresFormat)
+
+} // namespace br
+
+#include "scores.moc"
+#include <opencv2/highgui/highgui.hpp>
+
+#include <openbr/plugins/openbr_internal.h>
+#include <openbr/core/qtutils.h>
+#include <openbr/core/opencvutils.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup formats
+ * \brief Read all frames of a video using OpenCV
+ * \author Charles Otto \cite caotto
+ */
+class videoFormat : public Format
+{
+    Q_OBJECT
+
+public:
+    Template read() const
+    {
+        if (!file.exists() )
+            return Template();
+
+        VideoCapture videoSource(file.name.toStdString());
+        videoSource.open(file.name.toStdString() );
+
+
+        Template frames;
+        if (!videoSource.isOpened()) {
+            qWarning("video file open failed");
+            return frames;
+        }
+
+        bool open = true;
+        while (open) {
+            cv::Mat frame;
+            open = videoSource.read(frame);
+            if (!open) break;
+
+            frames.append(cv::Mat());
+            frames.back() = frame.clone();
+        }
+
+        return frames;
+    }
+
+    void write(const Template &t) const
+    {
+        int fourcc = OpenCVUtils::getFourcc();
+        VideoWriter videoSink(file.name.toStdString(), fourcc, 30, t.begin()->size());
+
+        // Did we successfully open the output file?
+        if (!videoSink.isOpened() ) qFatal("Failed to open output file");
+
+        for (Template::const_iterator it = t.begin(); it!= t.end(); ++it) {
+            videoSink << *it;
+        }
+    }
+};
+
+BR_REGISTER(Format, videoFormat)
+
+/*!
+ * \ingroup formats
+ * \brief Retrieves an image from a webcam.
+ * \author Josh Klontz \cite jklontz
+ */
+class webcamFormat : public Format
+{
+    Q_OBJECT
+
+    Template read() const
+    {
+        static QScopedPointer<VideoCapture> videoCapture;
+
+        if (videoCapture.isNull())
+            videoCapture.reset(new VideoCapture(0));
+
+        Mat m;
+        videoCapture->read(m);
+        return Template(m);
+    }
+
+    void write(const Template &t) const
+    {
+        (void) t;
+        qFatal("Not supported.");
+    }
+};
+
+BR_REGISTER(Format, webcamFormat)
+
+/*!
+ * \ingroup formats
+ * \brief Reads image files.
+ * \author Josh Klontz \cite jklontz
+ */
+class DefaultFormat : public Format
+{
+    Q_OBJECT
+
+    Template read() const
+    {
+        Template t;
+
+        if (file.name.startsWith("http://") || file.name.startsWith("https://") || file.name.startsWith("www.")) {
+            if (Factory<Format>::names().contains("url")) {
+                File urlFile = file;
+                urlFile.name.append(".url");
+                QScopedPointer<Format> url(Factory<Format>::make(urlFile));
+                t = url->read();
+            }
+        } else {
+            Mat m = imread(file.resolved().toStdString());
+            if (m.data) {
+                t.append(m);
+            } else {
+                videoFormat videoReader;
+                videoReader.file = file;
+                t = videoReader.read();
+            }
+        }
+
+        return t;
+    }
+
+    void write(const Template &t) const
+    {
+        if (t.size() > 1) {
+            videoFormat videoWriter;
+            videoWriter.file = file;
+            videoWriter.write(t);
+        } else if (t.size() == 1) {
+            QtUtils::touchDir(QDir(file.path()));
+            imwrite(file.name.toStdString(), t);
+        }
+    }
+};
+
+BR_REGISTER(Format, DefaultFormat)
+
+} // namespace br
+
+#include "video.moc"
+#ifndef BR_EMBEDDED
+#include <QtXml>
+#endif // BR_EMBEDDED
+#include <opencv2/highgui/highgui.hpp>
+
+#include <openbr/plugins/openbr_internal.h>
+#include <openbr/core/qtutils.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup formats
+ * \brief Decodes images from Base64 xml
+ * \author Scott Klum \cite sklum
+ * \author Josh Klontz \cite jklontz
+ */
+class xmlFormat : public Format
+{
+    Q_OBJECT
+
+    Template read() const
+    {
+        Template t;
+
+#ifndef BR_EMBEDDED
+        QString fileName = file.get<QString>("path") + file.name;
+
+        QDomDocument doc(fileName);
+        QFile f(fileName);
+
+        if (!f.open(QIODevice::ReadOnly)) qFatal("Unable to open %s for reading.", qPrintable(file.flat()));
+        if (!doc.setContent(&f)) qWarning("Unable to parse %s.", qPrintable(file.flat()));
+        f.close();
+
+        QDomElement docElem = doc.documentElement();
+        QDomNode subject = docElem.firstChild();
+        while (!subject.isNull()) {
+            QDomNode fileNode = subject.firstChild();
+
+            while (!fileNode.isNull()) {
+                QDomElement e = fileNode.toElement();
+
+                if (e.tagName() == "FORMAL_IMG") {
+                    QByteArray byteArray = QByteArray::fromBase64(qPrintable(e.text()));
+                    Mat m = imdecode(Mat(3, byteArray.size(), CV_8UC3, byteArray.data()), CV_LOAD_IMAGE_COLOR);
+                    if (!m.data) qWarning("xmlFormat::read failed to decode image data.");
+                    t.append(m);
+                } else if ((e.tagName() == "RELEASE_IMG") ||
+                           (e.tagName() == "PREBOOK_IMG") ||
+                           (e.tagName() == "LPROFILE") ||
+                           (e.tagName() == "RPROFILE")) {
+                    // Ignore these other image fields for now
+                } else {
+                    t.file.set(e.tagName(), e.text());
+                }
+
+                fileNode = fileNode.nextSibling();
+            }
+            subject = subject.nextSibling();
+        }
+
+        // Calculate age
+        if (t.file.contains("DOB")) {
+            const QDate dob = QDate::fromString(t.file.get<QString>("DOB").left(10), "yyyy-MM-dd");
+            const QDate current = QDate::currentDate();
+            int age = current.year() - dob.year();
+            if (current.month() < dob.month()) age--;
+            t.file.set("Age", age);
+        }
+#endif // BR_EMBEDDED
+
+        return t;
+    }
+
+    void write(const Template &t) const
+    {
+        QStringList lines;
+        lines.append("<?xml version=\"1.0\" standalone=\"yes\"?>");
+        lines.append("<openbr-xml-format>");
+        lines.append("\t<xml-data>");
+        foreach (const QString &key, t.file.localKeys()) {
+            if ((key == "Index") || (key == "Label")) continue;
+            lines.append("\t\t<"+key+">"+QtUtils::toString(t.file.value(key))+"</"+key+">");
+        }
+        std::vector<uchar> data;
+        imencode(".jpg",t.m(),data);
+        QByteArray byteArray = QByteArray::fromRawData((const char*)data.data(), data.size());
+        lines.append("\t\t<FORMAL_IMG>"+byteArray.toBase64()+"</FORMAL_IMG>");
+        lines.append("\t</xml-data>");
+        lines.append("</openbr-xml-format>");
+        QtUtils::writeFile(file, lines);
+    }
+};
+
+BR_REGISTER(Format, xmlFormat)
+
+} // namespace br
+
+#include "xml.moc"
@@ -928,6 +928,54 @@ public:
  
 BR_REGISTER(Transform, SurveyTransform)
  
+class FilterTransform : public ShowTransform
+{
+    Q_OBJECT
+
+    void projectUpdate(const TemplateList &src, TemplateList &dst)
+    {
+        if (Globals->parallelism > 1)
+            qFatal("FilterTransform cannot execute in parallel.");
+
+        if (src.empty())
+            return;
+
+        foreach (const Template &t, src) {
+            Template u(t.file);
+            foreach (const cv::Mat &m, t) {
+                qImageBuffer = toQImage(m);
+                displayBuffer->convertFromImage(qImageBuffer);
+
+                emit updateImage(displayBuffer->copy(displayBuffer->rect()));
+
+                // Blocking wait for a key-press
+                if (this->waitInput) {
+                    QString answer = p_window->waitForKeyPress();
+                    qDebug() << answer;
+                    if (answer == "y")
+                        u.append(m);
+                }
+            }
+            if (!u.empty())
+                dst.append(u);
+        }
+    }
+    PromptWindow *p_window;
+
+
+    void init()
+    {
+        if (!Globals->useGui)
+            return;
+
+        initActual<PromptWindow>();
+        p_window = (PromptWindow *) window;
+
+        emit changeTitle("Keep: y Discard: n");
+    }
+};
+
+BR_REGISTER(Transform, FilterTransform)
  
 /*!
  * \ingroup transforms
+#include <opencv2/imgproc/imgproc.hpp>
+
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Load the image named in the specified property, draw it on the current matrix adjacent to the rect specified in the other property.
+ * \author Charles Otto \cite caotto
+ */
+class AdjacentOverlayTransform : public Transform
+{
+    Q_OBJECT
+
+    Q_PROPERTY(QString imgName READ get_imgName WRITE set_imgName RESET reset_imgName STORED false)
+    Q_PROPERTY(QString targetName READ get_targetName WRITE set_targetName RESET reset_targetName STORED false)
+    BR_PROPERTY(QString, imgName, "")
+    BR_PROPERTY(QString, targetName, "")
+
+    QSharedPointer<Transform> opener;
+    void project(const Template &src, Template &dst) const
+    {
+        dst = src;
+
+        if (imgName.isEmpty() || targetName.isEmpty() || !dst.file.contains(imgName) || !dst.file.contains(targetName))
+            return;
+
+        QVariant temp = src.file.value(imgName);
+        cv::Mat im;
+        // is this a filename?
+        if (temp.canConvert<QString>()) {
+            QString im_name = temp.toString();
+            Template temp_im;
+            opener->project(File(im_name), temp_im);
+            im = temp_im.m();
+        }
+        // a cv::Mat ?
+        else if (temp.canConvert<cv::Mat>())
+            im = src.file.get<cv::Mat>(imgName);
+        else
+            qDebug() << "Unrecognized property type " << imgName << "for" << src.file.name;
+
+        // Location of detected face in source image
+        QRectF target_location = src.file.get<QRectF>(targetName);
+
+        // match width with target region
+        qreal target_width = target_location.width();
+        qreal current_width = im.cols;
+        qreal current_height = im.rows;
+
+        qreal aspect_ratio = current_height / current_width;
+        qreal target_height = target_width * aspect_ratio;
+
+        cv::resize(im, im, cv::Size(target_width, target_height));
+
+        // ROI used to maybe crop the matched image
+        cv::Rect clip_roi;
+        clip_roi.x = 0;
+        clip_roi.y = 0;
+        clip_roi.width = im.cols;
+        clip_roi.height= im.rows <= dst.m().rows ? im.rows : dst.m().rows;
+
+        int half_width = src.m().cols / 2;
+        int out_x = 0;
+
+        // place in the source image we will copy the matched image to.
+        cv::Rect target_roi;
+        bool left_side = false;
+        int width_adjust = 0;
+        // Place left
+        if (target_location.center().rx() > half_width) {
+            out_x = target_location.left() - im.cols;
+            if (out_x < 0) {
+                width_adjust = abs(out_x);
+                out_x = 0;
+            }
+            left_side = true;
+        }
+        // place right
+        else {
+            out_x = target_location.right();
+            int high = out_x + im.cols;
+            if (high >= src.m().cols) {
+                width_adjust = abs(high - src.m().cols + 1);
+            }
+        }
+
+        cv::Mat outIm;
+        if (width_adjust)
+        {
+            outIm.create(dst.m().rows, dst.m().cols + width_adjust, CV_8UC3);
+            memset(outIm.data, 127, outIm.rows * outIm.cols * outIm.channels());
+
+            Rect temp;
+
+            if (left_side)
+                temp = Rect(abs(width_adjust), 0, dst.m().cols, dst.m().rows);
+
+            else
+                temp = Rect(0, 0, dst.m().cols, dst.m().rows);
+
+            dst.m().copyTo(outIm(temp));
+
+        }
+        else
+            outIm = dst.m();
+
+        if (clip_roi.height + target_location.top() >= outIm.rows)
+        {
+            clip_roi.height -= abs(outIm.rows - (clip_roi.height + target_location.top() ));
+        }
+        if (clip_roi.x + clip_roi.width >= im.cols) {
+            clip_roi.width -= abs(im.cols - (clip_roi.x + clip_roi.width + 1));
+            if (clip_roi.width < 0)
+                clip_roi.width = 1;
+        }
+
+        if (clip_roi.y + clip_roi.height >= im.rows) {
+            clip_roi.height -= abs(im.rows - (clip_roi.y + clip_roi.height + 1));
+        }
+        if (clip_roi.x < 0)
+            clip_roi.x = 0;
+        if (clip_roi.y < 0)
+            clip_roi.y = 0;
+
+        if (clip_roi.height < 0)
+            clip_roi.height = 0;
+
+        if (clip_roi.width < 0)
+            clip_roi.width = 0;
+
+
+        if (clip_roi.y + clip_roi.height >= im.rows)
+        {
+            qDebug() << "Bad clip y" << clip_roi.y + clip_roi.height << im.rows;
+        }
+        if (clip_roi.x + clip_roi.width >= im.cols)
+        {
+            qDebug() << "Bad clip x" << clip_roi.x + clip_roi.width << im.cols;
+        }
+
+        if (clip_roi.y < 0 || clip_roi.height < 0)
+        {
+            qDebug() << "bad clip y, low" << clip_roi.y << clip_roi.height;
+            qFatal("die");
+        }
+        if (clip_roi.x < 0 || clip_roi.width < 0)
+        {
+            qDebug() << "bad clip x, low" << clip_roi.x << clip_roi.width;
+            qFatal("die");
+        }
+
+        target_roi.x = out_x;
+        target_roi.width = clip_roi.width;
+        target_roi.y = target_location.top();
+        target_roi.height = clip_roi.height;
+
+
+        im = im(clip_roi);
+
+        if (target_roi.x < 0 || target_roi.x >= outIm.cols)
+        {
+            qDebug() << "Bad xdim in targetROI!" << target_roi.x << " out im x: " << outIm.cols;
+            qFatal("die");
+        }
+
+        if (target_roi.x + target_roi.width < 0 || (target_roi.x + target_roi.width) >= outIm.cols)
+        {
+            qDebug() << "Bad xdim in targetROI!" << target_roi.x + target_roi.width;
+            qFatal("die");
+        }
+
+        if (target_roi.y < 0 || target_roi.y >= outIm.rows)
+        {
+            qDebug() << "Bad ydim in targetROI!" << target_roi.y;
+            qFatal("die");
+        }
+
+        if ((target_roi.y + target_roi.height) < 0 || (target_roi.y + target_roi.height) > outIm.rows)
+        {
+            qDebug() << "Bad ydim in targetROI!" << target_roi.y + target_roi.height;
+            qDebug() << "target_roi.y: " << target_roi.y << " height: " << target_roi.height;
+            qFatal("die");
+        }
+
+
+        std::vector<cv::Mat> channels;
+        cv::split(outIm, channels);
+
+        std::vector<cv::Mat> patch_channels;
+        cv::split(im, patch_channels);
+
+        for (size_t i=0; i < channels.size(); i++)
+        {
+            cv::addWeighted(channels[i](target_roi), 0, patch_channels[i % patch_channels.size()], 1, 0,channels[i](target_roi));
+        }
+        cv::merge(channels, outIm);
+        dst.m() = outIm;
+
+    }
+
+    void init()
+    {
+        opener = QSharedPointer<br::Transform>(br::Transform::make("Cache(Open)", NULL));
+    }
+
+};
+
+BR_REGISTER(Transform, AdjacentOverlayTransform)
+
+} // namespace br
+
+#include "adjacentoverlay.moc"
+#include <openbr/plugins/openbr_internal.h>
+#include <openbr/core/opencvutils.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Renders metadata onto the image.
+ *
+ * The inPlace argument controls whether or not the image is cloned before the metadata is drawn.
+ *
+ * \author Josh Klontz \cite jklontz
+ */
+class DrawTransform : public UntrainableTransform
+{
+    Q_OBJECT
+    Q_PROPERTY(bool verbose READ get_verbose WRITE set_verbose RESET reset_verbose STORED false)
+    Q_PROPERTY(bool points READ get_points WRITE set_points RESET reset_points STORED false)
+    Q_PROPERTY(bool rects READ get_rects WRITE set_rects RESET reset_rects STORED false)
+    Q_PROPERTY(bool inPlace READ get_inPlace WRITE set_inPlace RESET reset_inPlace STORED false)
+    Q_PROPERTY(int lineThickness READ get_lineThickness WRITE set_lineThickness RESET reset_lineThickness STORED false)
+    Q_PROPERTY(bool named READ get_named WRITE set_named RESET reset_named STORED false)
+    Q_PROPERTY(bool location READ get_location WRITE set_location RESET reset_location STORED false)
+    BR_PROPERTY(bool, verbose, false)
+    BR_PROPERTY(bool, points, true)
+    BR_PROPERTY(bool, rects, true)
+    BR_PROPERTY(bool, inPlace, false)
+    BR_PROPERTY(int, lineThickness, 1)
+    BR_PROPERTY(bool, named, true)
+    BR_PROPERTY(bool, location, true)
+
+    void project(const Template &src, Template &dst) const
+    {
+        const Scalar color(0,255,0);
+        const Scalar verboseColor(255, 255, 0);
+        dst.m() = inPlace ? src.m() : src.m().clone();
+
+        if (points) {
+            const QList<Point2f> pointsList = (named) ? OpenCVUtils::toPoints(src.file.points()+src.file.namedPoints()) : OpenCVUtils::toPoints(src.file.points());
+            for (int i=0; i<pointsList.size(); i++) {
+                const Point2f &point = pointsList[i];
+                circle(dst, point, 3, color, -1);
+                QString label = (location) ? QString("%1,(%2,%3)").arg(QString::number(i),QString::number(point.x),QString::number(point.y)) : QString("%1").arg(QString::number(i));
+                if (verbose) putText(dst, label.toStdString(), point, FONT_HERSHEY_SIMPLEX, 0.5, verboseColor, 1);
+            }
+        }
+        if (rects) {
+            foreach (const Rect &rect, OpenCVUtils::toRects(src.file.namedRects() + src.file.rects()))
+                rectangle(dst, rect, color, lineThickness);
+        }
+    }
+};
+
+BR_REGISTER(Transform, DrawTransform)
+
+} // namespace br
+
+#include "draw.moc"
+#include <opencv2/highgui/highgui.hpp>
+
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Draws a grid on the image
+ * \author Josh Klontz \cite jklontz
+ */
+class DrawGridLinesTransform : public UntrainableTransform
+{
+    Q_OBJECT
+    Q_PROPERTY(int rows READ get_rows WRITE set_rows RESET reset_rows STORED false)
+    Q_PROPERTY(int columns READ get_columns WRITE set_columns RESET reset_columns STORED false)
+    Q_PROPERTY(int r READ get_r WRITE set_r RESET reset_r STORED false)
+    Q_PROPERTY(int g READ get_g WRITE set_g RESET reset_g STORED false)
+    Q_PROPERTY(int b READ get_b WRITE set_b RESET reset_b STORED false)
+    BR_PROPERTY(int, rows, 0)
+    BR_PROPERTY(int, columns, 0)
+    BR_PROPERTY(int, r, 196)
+    BR_PROPERTY(int, g, 196)
+    BR_PROPERTY(int, b, 196)
+
+    void project(const Template &src, Template &dst) const
+    {
+        Mat m = src.m().clone();
+        float rowStep = 1.f * m.rows / (rows+1);
+        float columnStep = 1.f * m.cols / (columns+1);
+        int thickness = qMin(m.rows, m.cols) / 256;
+        for (float row = rowStep/2; row < m.rows; row += rowStep)
+            line(m, Point(0, row), Point(m.cols, row), Scalar(r, g, b), thickness, CV_AA);
+        for (float column = columnStep/2; column < m.cols; column += columnStep)
+            line(m, Point(column, 0), Point(column, m.rows), Scalar(r, g, b), thickness, CV_AA);
+        dst = m;
+    }
+};
+
+BR_REGISTER(Transform, DrawGridLinesTransform)
+
+} // namespace br
+
+#include "drawgridlines.moc"
+#include <openbr/plugins/openbr_internal.h>
+#include <openbr/core/opencvutils.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Draw a line representing the direction and magnitude of optical flow at the specified points.
+ * \author Austin Blanton \cite imaus10
+ */
+class DrawOpticalFlow : public UntrainableTransform
+{
+    Q_OBJECT
+    Q_PROPERTY(QString original READ get_original WRITE set_original RESET reset_original STORED false)
+    BR_PROPERTY(QString, original, "original")
+
+    void project(const Template &src, Template &dst) const
+    {
+        const Scalar color(0,255,0);
+        Mat flow = src.m();
+        dst = src;
+        if (!dst.file.contains(original)) qFatal("The original img must be saved in the metadata with SaveMat.");
+        dst.m() = dst.file.get<Mat>(original);
+        dst.file.remove(original);
+        foreach (const Point2f &pt, OpenCVUtils::toPoints(dst.file.points())) {
+            Point2f dxy = flow.at<Point2f>(pt.y, pt.x);
+            Point2f newPt(pt.x+dxy.x, pt.y+dxy.y);
+            line(dst, pt, newPt, color);
+        }
+    }
+};
+
+BR_REGISTER(Transform, DrawOpticalFlow)
+
+} // namespace br
+
+#include "drawopticalflow.moc"
+#include <openbr/plugins/openbr_internal.h>
+#include <openbr/core/opencvutils.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Draw the values of a list of properties at the specified point on the image
+ *
+ * The inPlace argument controls whether or not the image is cloned before it is drawn on.
+ *
+ * \author Charles Otto \cite caotto
+ */
+class DrawPropertiesPointTransform : public UntrainableTransform
+{
+    Q_OBJECT
+    Q_PROPERTY(QStringList propNames READ get_propNames WRITE set_propNames RESET reset_propNames STORED false)
+    Q_PROPERTY(QString pointName READ get_pointName WRITE set_pointName RESET reset_pointName STORED false)
+    Q_PROPERTY(bool inPlace READ get_inPlace WRITE set_inPlace RESET reset_inPlace STORED false)
+    BR_PROPERTY(QStringList, propNames, QStringList())
+    BR_PROPERTY(QString, pointName, "")
+    BR_PROPERTY(bool, inPlace, false)
+
+    void project(const Template &src, Template &dst) const
+    {
+        dst = src;
+        if (propNames.isEmpty() || pointName.isEmpty())
+            return;
+
+        dst.m() = inPlace ? src.m() : src.m().clone();
+
+        QVariant point = dst.file.value(pointName);
+
+        if (!point.canConvert(QVariant::PointF))
+            return;
+
+        QPointF targetPoint = point.toPointF();
+
+        Point2f cvPoint = OpenCVUtils::toPoint(targetPoint);
+
+
+        const Scalar textColor(255, 255, 0);
+
+        std::string outString = "";
+        foreach (const QString &propName, propNames)
+        {
+            QVariant prop = dst.file.value(propName);
+
+            if (!prop.canConvert(QVariant::String))
+                continue;
+            QString propString = prop.toString();
+            outString += propName.toStdString() + ": " + propString.toStdString() + " ";
+
+        }
+        if (outString.empty())
+            return;
+
+        putText(dst, outString, cvPoint, FONT_HERSHEY_SIMPLEX, 0.5, textColor, 1);
+    }
+
+};
+
+BR_REGISTER(Transform, DrawPropertiesPointTransform)
+
+} // namespace br
+
+#include "drawpropertiespoint.moc"
+#include <openbr/plugins/openbr_internal.h>
+#include <openbr/core/opencvutils.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Draw the value of the specified property at the specified point on the image
+ *
+ * The inPlace argument controls whether or not the image is cloned before it is drawn on.
+ *
+ * \author Charles Otto \cite caotto
+ */
+class DrawPropertyPointTransform : public UntrainableTransform
+{
+    Q_OBJECT
+    Q_PROPERTY(QString propName READ get_propName WRITE set_propName RESET reset_propName STORED false)
+    Q_PROPERTY(QString pointName READ get_pointName WRITE set_pointName RESET reset_pointName STORED false)
+    Q_PROPERTY(bool inPlace READ get_inPlace WRITE set_inPlace RESET reset_inPlace STORED false)
+    BR_PROPERTY(QString, propName, "")
+    BR_PROPERTY(QString, pointName, "")
+    BR_PROPERTY(bool, inPlace, false)
+
+
+    void project(const Template &src, Template &dst) const
+    {
+        dst = src;
+        if (propName.isEmpty() || pointName.isEmpty())
+            return;
+
+        dst.m() = inPlace ? src.m() : src.m().clone();
+
+        const Scalar textColor(255, 255, 0);
+
+        QVariant prop = dst.file.value(propName);
+
+
+        if (!prop.canConvert(QVariant::String))
+            return;
+        QString propString = prop.toString();
+
+        QVariant point = dst.file.value(pointName);
+
+        if (!point.canConvert(QVariant::PointF))
+            return;
+
+        QPointF targetPoint = point.toPointF();
+
+        Point2f cvPoint = OpenCVUtils::toPoint(targetPoint);
+
+        std::string text = propName.toStdString() + ": " + propString.toStdString();
+        putText(dst, text, cvPoint, FONT_HERSHEY_SIMPLEX, 0.5, textColor, 1);
+    }
+
+};
+BR_REGISTER(Transform, DrawPropertyPointTransform)
+
+} // namespace br
+
+#include "drawpropertypoint.moc"
+#include <opencv2/imgproc/imgproc.hpp>
+
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace std;
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Fill in the segmentations or draw a line between intersecting segments.
+ * \author Austin Blanton \cite imaus10
+ */
+class DrawSegmentation : public UntrainableTransform
+{
+    Q_OBJECT
+    Q_PROPERTY(bool fillSegment READ get_fillSegment WRITE set_fillSegment RESET reset_fillSegment STORED false)
+    BR_PROPERTY(bool, fillSegment, true)
+
+    void project(const Template &src, Template &dst) const
+    {
+        if (!src.file.contains("SegmentsMask") || !src.file.contains("NumSegments")) qFatal("Must supply a Contours object in the metadata to drawContours.");
+        Mat segments = src.file.get<Mat>("SegmentsMask");
+        int numSegments = src.file.get<int>("NumSegments");
+
+        dst.file = src.file;
+        Mat drawn = fillSegment ? Mat(segments.size(), CV_8UC3, Scalar::all(0)) : src.m();
+
+        for (int i=1; i<numSegments+1; i++) {
+            Mat mask = segments == i;
+            if (fillSegment) { // color the whole segment
+                // set to a random color - get ready for a craaaazy acid trip
+                int b = theRNG().uniform(0, 255);
+                int g = theRNG().uniform(0, 255);
+                int r = theRNG().uniform(0, 255);
+                drawn.setTo(Scalar(r,g,b), mask);
+            } else { // draw lines where there's a color change
+                vector<vector<Point> > contours;
+                Scalar color(0,255,0);
+                findContours(mask, contours, CV_RETR_LIST, CV_CHAIN_APPROX_NONE);
+                drawContours(drawn, contours, -1, color);
+            }
+        }
+
+        dst.m() = drawn;
+    }
+};
+
+BR_REGISTER(Transform, DrawSegmentation)
+
+} // namespace br
+
+#include "drawsegmentation.moc"
+#include <openbr/plugins/openbr_internal.h>
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Computes the absolute value of each element.
+ * \author Josh Klontz \cite jklontz
+ */
+class AbsTransform : public UntrainableTransform
+{
+    Q_OBJECT
+
+    void project(const Template &src, Template &dst) const
+    {
+        dst = cv::abs(src);
+    }
+};
+
+BR_REGISTER(Transform, AbsTransform)
+
+} // namespace br
+
+#include "abs.moc"
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Alpha-blend two matrices
+ * \author Josh Klontz \cite jklontz
+ */
+class BlendTransform : public UntrainableMetaTransform
+{
+    Q_OBJECT
+    Q_PROPERTY(float alpha READ get_alpha WRITE set_alpha RESET reset_alpha STORED false)
+    BR_PROPERTY(float, alpha, 0.5)
+
+    void project(const Template &src, Template &dst) const
+    {
+        if (src.size() != 2) qFatal("Expected two source matrices.");
+        addWeighted(src[0], alpha, src[1], 1-alpha, 0, dst);
+    }
+};
+
+BR_REGISTER(Transform, BlendTransform)
+
+} // namespace br
+
+#include "blend.moc"
+#include <opencv2/imgproc/imgproc.hpp>
+
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Gaussian blur
+ * \author Josh Klontz \cite jklontz
+ */
+class BlurTransform : public UntrainableTransform
+{
+    Q_OBJECT
+    Q_PROPERTY(float sigma READ get_sigma WRITE set_sigma RESET reset_sigma STORED false)
+    Q_PROPERTY(bool ROI READ get_ROI WRITE set_ROI RESET reset_ROI STORED false)
+    BR_PROPERTY(float, sigma, 1)
+    BR_PROPERTY(bool, ROI, false)
+
+    void project(const Template &src, Template &dst) const
+    {
+        if (!ROI) GaussianBlur(src, dst, Size(0,0), sigma);
+        else {
+            dst.m() = src.m();
+            foreach (const QRectF &rect, src.file.rects()) {
+                Rect region(rect.x(), rect.y(), rect.width(), rect.height());
+                Mat input = dst.m();
+                Mat output = input.clone();
+                GaussianBlur(input(region), output(region), Size(0,0), sigma);
+                dst.m() = output;
+            }
+        }
+    }
+};
+
+BR_REGISTER(Transform, BlurTransform)
+
+} // namespace br
+
+#include "blur.moc"
+#include <openbr/plugins/openbr_internal.h>
+#include <openbr/core/tanh_sse.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Xiaoyang Tan; Triggs, B.;
+ * "Enhanced Local Texture Feature Sets for Face Recognition Under Difficult Lighting Conditions,"
+ * Image Processing, IEEE Transactions on , vol.19, no.6, pp.1635-1650, June 2010
+ * \author Josh Klontz \cite jklontz
+ */
+class ContrastEqTransform : public UntrainableTransform
+{
+    Q_OBJECT
+    Q_PROPERTY(float a READ get_a WRITE set_a RESET reset_a STORED false)
+    Q_PROPERTY(float t READ get_t WRITE set_t RESET reset_t STORED false)
+    BR_PROPERTY(float, a, 1)
+    BR_PROPERTY(float, t, 0.1)
+
+    void project(const Template &src, Template &dst) const
+    {
+        if (src.m().channels() != 1) qFatal("Expected single channel source matrix.");
+
+        // Stage 1
+        Mat stage1;
+        {
+            Mat abs_dst;
+            absdiff(src, Scalar(0), abs_dst);
+            Mat pow_dst;
+            pow(abs_dst, a, pow_dst);
+            float denominator = pow((float)mean(pow_dst)[0], 1.f/a);
+            src.m().convertTo(stage1, CV_32F, 1/denominator);
+        }
+
+        // Stage 2
+        Mat stage2;
+        {
+            Mat abs_dst;
+            absdiff(stage1, Scalar(0), abs_dst);
+            Mat min_dst;
+            min(abs_dst, t, min_dst);
+            Mat pow_dst;
+            pow(min_dst, a, pow_dst);
+            float denominator = pow((float)mean(pow_dst)[0], 1.f/a);
+            stage1.convertTo(stage2, CV_32F, 1/denominator);
+        }
+
+        // Hyperbolic tangent
+        const int nRows = src.m().rows;
+        const int nCols = src.m().cols;
+        const float* p = (const float*)stage2.ptr();
+        Mat m(nRows, nCols, CV_32FC1);
+        for (int i=0; i<nRows; i++)
+            for (int j=0; j<nCols; j++)
+                m.at<float>(i, j) = fast_tanh(p[i*nCols+j]);
+                // TODO: m.at<float>(i, j) = t * fast_tanh(p[i*nCols+j] / t);
+
+        dst = m;
+    }
+};
+
+BR_REGISTER(Transform, ContrastEqTransform)
+
+} // namespace br
+
+#include "contrasteq.moc"
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Crops about the specified region of interest.
+ * \author Josh Klontz \cite jklontz
+ */
+class CropTransform : public UntrainableTransform
+{
+    Q_OBJECT
+    Q_PROPERTY(int x READ get_x WRITE set_x RESET reset_x STORED false)
+    Q_PROPERTY(int y READ get_y WRITE set_y RESET reset_y STORED false)
+    Q_PROPERTY(int width READ get_width WRITE set_width RESET reset_width STORED false)
+    Q_PROPERTY(int height READ get_height WRITE set_height RESET reset_height STORED false)
+    BR_PROPERTY(int, x, 0)
+    BR_PROPERTY(int, y, 0)
+    BR_PROPERTY(int, width, -1)
+    BR_PROPERTY(int, height, -1)
+
+    void project(const Template &src, Template &dst) const
+    {
+        dst = Mat(src, Rect(x, y, width < 1 ? src.m().cols-x-abs(width) : width, height < 1 ? src.m().rows-y-abs(height) : height));
+    }
+};
+
+BR_REGISTER(Transform, CropTransform)
+
+} // namespace br
+
+#include "crop.moc"
+#include <openbr/plugins/openbr_internal.h>
+#include <openbr/core/opencvutils.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Crop out black borders
+ * \author Josh Klontz \cite jklontz
+ */
+class CropBlackTransform : public UntrainableTransform
+{
+    Q_OBJECT
+
+    void project(const Template &src, Template &dst) const
+    {
+        Mat gray;
+        OpenCVUtils::cvtGray(src, gray);
+
+        int xStart = 0;
+        while (xStart < gray.cols) {
+            if (mean(gray.col(xStart))[0] >= 1) break;
+            xStart++;
+        }
+
+        int xEnd = gray.cols - 1;
+        while (xEnd >= 0) {
+            if (mean(gray.col(xEnd))[0] >= 1) break;
+            xEnd--;
+        }
+
+        int yStart = 0;
+        while (yStart < gray.rows) {
+            if (mean(gray.col(yStart))[0] >= 1) break;
+            yStart++;
+        }
+
+        int yEnd = gray.rows - 1;
+        while (yEnd >= 0) {
+            if (mean(gray.col(yEnd))[0] >= 1) break;
+            yEnd--;
+        }
+
+        dst = src.m()(Rect(xStart, yStart, xEnd-xStart, yEnd-yStart));
+    }
+};
+
+BR_REGISTER(Transform, CropBlackTransform)
+
+} // namespace br
+
+#include "cropblack.moc"
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Trim the image so the width and the height are the same size.
+ * \author Josh Klontz \cite jklontz
+ */
+class CropSquareTransform : public UntrainableTransform
+{
+    Q_OBJECT
+
+    void project(const Template &src, Template &dst) const
+    {
+        const Mat &m = src;
+        const int newSize = min(m.rows, m.cols);
+        dst = Mat(m, Rect((m.cols-newSize)/2, (m.rows-newSize)/2, newSize, newSize));
+    }
+};
+
+BR_REGISTER(Transform, CropSquareTransform)
+
+} // namespace br
+
+#include "cropsquare.moc"
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace std;
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Meyers, E.; Wolf, L.
+ * “Using biologically inspired features for face processing,”
+ * Int. Journal of Computer Vision, vol. 76, no. 1, pp 93–104, 2008.
+ * \author Scott Klum \cite sklum
+ */
+
+class CSDNTransform : public UntrainableTransform
+{
+    Q_OBJECT
+
+    Q_PROPERTY(float s READ get_s WRITE set_s RESET reset_s STORED false)
+    BR_PROPERTY(int, s, 16)
+
+    void project(const Template &src, Template &dst) const
+    {
+        if (src.m().channels() != 1) qFatal("Expected single channel source matrix.");
+
+        const int nRows = src.m().rows;
+        const int nCols = src.m().cols;
+
+        Mat m;
+        src.m().convertTo(m, CV_32FC1);
+
+        const int surround = s/2;
+
+        for ( int i = 0; i < nRows; i++ ) {
+            for ( int j = 0; j < nCols; j++ ) {
+                int width = min( j+surround, nCols ) - max( 0, j-surround );
+                int height = min( i+surround, nRows ) - max( 0, i-surround );
+
+                Rect_<int> ROI(max(0, j-surround), max(0, i-surround), width, height);
+
+                Scalar_<float> avg = mean(m(ROI));
+
+                m.at<float>(i,j) = m.at<float>(i,j) - avg[0];
+            }
+        }
+
+        dst = m;
+
+    }
+};
+
+BR_REGISTER(Transform, CSDNTransform)
+
+} // namespace br
+
+#include "csdn.moc"
+#include <opencv2/imgproc/imgproc.hpp>
+
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Colorspace conversion.
+ * \author Josh Klontz \cite jklontz
+ */
+class CvtColorTransform : public UntrainableTransform
+{
+    Q_OBJECT
+    Q_ENUMS(ColorSpace)
+    Q_PROPERTY(ColorSpace colorSpace READ get_colorSpace WRITE set_colorSpace RESET reset_colorSpace STORED false)
+    Q_PROPERTY(int channel READ get_channel WRITE set_channel RESET reset_channel STORED false)
+
+public:
+    enum ColorSpace { Gray = CV_BGR2GRAY,
+                      RGBGray = CV_RGB2GRAY,
+                      HLS = CV_BGR2HLS,
+                      HSV = CV_BGR2HSV,
+                      Lab = CV_BGR2Lab,
+                      Luv = CV_BGR2Luv,
+                      RGB = CV_BGR2RGB,
+                      XYZ = CV_BGR2XYZ,
+                      YCrCb = CV_BGR2YCrCb,
+                      Color = CV_GRAY2BGR };
+
+private:
+    BR_PROPERTY(ColorSpace, colorSpace, Gray)
+    BR_PROPERTY(int, channel, -1)
+
+    void project(const Template &src, Template &dst) const
+    {
+        if (src.m().channels() > 1 || colorSpace == CV_GRAY2BGR) cvtColor(src, dst, colorSpace);
+        else dst = src;
+
+        if (channel != -1) {
+            std::vector<Mat> mv;
+            split(dst, mv);
+            dst = mv[channel % (int)mv.size()];
+        }
+    }
+};
+
+BR_REGISTER(Transform, CvtColorTransform)
+
+} // namespace br
+
+#include "cvtcolor.moc"
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Convert to floating point format.
+ * \author Josh Klontz \cite jklontz
+ */
+class CvtFloatTransform : public UntrainableTransform
+{
+    Q_OBJECT
+
+    void project(const Template &src, Template &dst) const
+    {
+        src.m().convertTo(dst, CV_32F);
+    }
+};
+
+BR_REGISTER(Transform, CvtFloatTransform)
+
+} // namespace br
+
+#include "cvtfloat.moc"
+#include <openbr/plugins/openbr_internal.h>
+#include <openbr/core/opencvutils.h>
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Convert to uchar format
+ * \author Josh Klontz \cite jklontz
+ */
+class CvtUCharTransform : public UntrainableTransform
+{
+    Q_OBJECT
+
+    void project(const Template &src, Template &dst) const
+    {
+        OpenCVUtils::cvtUChar(src, dst);
+    }
+};
+
+BR_REGISTER(Transform, CvtUCharTransform)
+
+} // namespace br
+
+#include "cvtuchar.moc"
@@ -15,7 +15,8 @@
  * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
  
 #include <opencv2/photo/photo.hpp>
-#include "openbr_internal.h"
+
+#include <openbr/plugins/openbr_internal.h>
  
 using namespace cv;
  
+#include <opencv2/imgproc/imgproc.hpp>
+
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Drop the alpha channel (if exists).
+ * \author Austin Blanton \cite imaus10
+ */
+class DiscardAlphaTransform : public UntrainableTransform
+{
+    Q_OBJECT
+
+    void project(const Template &src, Template &dst) const
+    {
+        if (src.m().channels() > 4 || src.m().channels() == 2) {
+            dst.file.fte = true;
+            return;
+        }
+
+        dst = src;
+        if (src.m().channels() == 4) {
+            std::vector<Mat> mv;
+            split(src, mv);
+            mv.pop_back();
+            merge(mv, dst);
+        }
+    }
+};
+
+BR_REGISTER(Transform, DiscardAlphaTransform)
+
+} // namespace br
+
+#include "discardalpha.moc"
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Enforce a multiple of \em n columns.
+ * \author Josh Klontz \cite jklontz
+ */
+class DivTransform : public UntrainableTransform
+{
+    Q_OBJECT
+    Q_PROPERTY(int n READ get_n WRITE set_n RESET reset_n STORED false)
+    BR_PROPERTY(int, n, 1)
+
+    void project(const Template &src, Template &dst) const
+    {
+        dst = Mat(src, Rect(0,0,n*(src.m().cols/n),src.m().rows));
+    }
+};
+
+BR_REGISTER(Transform, DivTransform)
+
+} // namespace br
+
+#include "div.moc"
+#include <opencv2/imgproc/imgproc.hpp>
+
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Difference of gaussians
+ * \author Josh Klontz \cite jklontz
+ */
+class DoGTransform : public UntrainableTransform
+{
+    Q_OBJECT
+    Q_PROPERTY(float sigma0 READ get_sigma0 WRITE set_sigma0 RESET reset_sigma0 STORED false)
+    Q_PROPERTY(float sigma1 READ get_sigma1 WRITE set_sigma1 RESET reset_sigma1 STORED false)
+    BR_PROPERTY(float, sigma0, 1)
+    BR_PROPERTY(float, sigma1, 2)
+
+    Size ksize0, ksize1;
+
+    static Size getKernelSize(double sigma)
+    {
+        // Inverts OpenCV's conversion from kernel size to sigma:
+        // sigma = ((ksize-1)*0.5 - 1)*0.3 + 0.8
+        // See documentation for cv::getGaussianKernel()
+        int ksize = ((sigma - 0.8) / 0.3 + 1) * 2 + 1;
+        if (ksize % 2 == 0) ksize++;
+        return Size(ksize, ksize);
+    }
+
+    void init()
+    {
+        ksize0 = getKernelSize(sigma0);
+        ksize1 = getKernelSize(sigma1);
+    }
+
+    void project(const Template &src, Template &dst) const
+    {
+        Mat g0, g1;
+        GaussianBlur(src, g0, ksize0, 0);
+        GaussianBlur(src, g1, ksize1, 0);
+        subtract(g0, g1, dst);
+    }
+};
+
+BR_REGISTER(Transform, DoGTransform)
+
+} // namespace br
+
+#include "dog.moc"
+#include <opencv2/imgproc/imgproc.hpp>
+
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Enforce the matrix has a certain number of channels by adding or removing channels.
+ * \author Josh Klontz \cite jklontz
+ */
+class EnsureChannelsTransform : public UntrainableTransform
+{
+    Q_OBJECT
+    Q_PROPERTY(int n READ get_n WRITE set_n RESET reset_n STORED false)
+    BR_PROPERTY(int, n, 1)
+
+    void project(const Template &src, Template &dst) const
+    {
+        if (src.m().channels() == n) {
+            dst = src;
+        } else {
+            std::vector<Mat> mv;
+            split(src, mv);
+
+            // Add extra channels
+            while ((int)mv.size() < n) {
+                for (int i=0; i<src.m().channels(); i++) {
+                    mv.push_back(mv[i]);
+                    if ((int)mv.size() == n)
+                        break;
+                }
+            }
+
+            // Remove extra channels
+            while ((int)mv.size() > n)
+                mv.pop_back();
+
+            merge(mv, dst);
+        }
+    }
+};
+
+BR_REGISTER(Transform, EnsureChannelsTransform)
+
+} // namespace br
+
+#include "ensurechannels.moc"
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Fill black pixels with the specified color.
+ * \author Josh Klontz \cite jklontz
+ */
+class FloodTransform : public UntrainableTransform
+{
+    Q_OBJECT
+    Q_PROPERTY(int r READ get_r WRITE set_r RESET reset_r STORED false)
+    Q_PROPERTY(int g READ get_g WRITE set_g RESET reset_g STORED false)
+    Q_PROPERTY(int b READ get_b WRITE set_b RESET reset_b STORED false)
+    Q_PROPERTY(bool all READ get_all WRITE set_all RESET reset_all STORED false)
+    BR_PROPERTY(int, r, 0)
+    BR_PROPERTY(int, g, 0)
+    BR_PROPERTY(int, b, 0)
+    BR_PROPERTY(bool, all, false)
+
+    void project(const Template &src, Template &dst) const
+    {
+        dst = src.m().clone();
+        dst.m().setTo(Scalar(r, g, b), all ? Mat() : dst.m()==0);
+    }
+};
+
+BR_REGISTER(Transform, FloodTransform)
+
+} // namespace br
+
+#include "flood.moc"
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Gamma correction
+ * \author Josh Klontz \cite jklontz
+ */
+class GammaTransform : public UntrainableTransform
+{
+    Q_OBJECT
+    Q_PROPERTY(float gamma READ get_gamma WRITE set_gamma RESET reset_gamma STORED false)
+    BR_PROPERTY(float, gamma, 0.2)
+
+    Mat lut;
+
+    void init()
+    {
+        lut.create(256, 1, CV_32FC1);
+        if (gamma == 0) for (int i=0; i<256; i++) lut.at<float>(i,0) = log((float)i);
+        else            for (int i=0; i<256; i++) lut.at<float>(i,0) = pow(i, gamma);
+    }
+
+    void project(const Template &src, Template &dst) const
+    {
+        if (src.m().depth() == CV_8U) LUT(src, lut, dst);
+        else                          pow(src, gamma, dst);
+    }
+};
+
+BR_REGISTER(Transform, GammaTransform)
+
+} // namespace br
+
+#include "gamma.moc"
+#include <opencv2/imgproc/imgproc.hpp>
+
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Computes magnitude and/or angle of image.
+ * \author Josh Klontz \cite jklontz
+ */
+class GradientTransform : public UntrainableTransform
+{
+    Q_OBJECT
+    Q_ENUMS(Channel)
+    Q_PROPERTY(Channel channel READ get_channel WRITE set_channel RESET reset_channel STORED false)
+
+public:
+    enum Channel { Magnitude, Angle, MagnitudeAndAngle };
+
+private:
+    BR_PROPERTY(Channel, channel, Angle)
+
+    void project(const Template &src, Template &dst) const
+    {
+        Mat dx, dy, magnitude, angle;
+        Sobel(src, dx, CV_32F, 1, 0, CV_SCHARR);
+        Sobel(src, dy, CV_32F, 0, 1, CV_SCHARR);
+        cartToPolar(dx, dy, magnitude, angle, true);
+        std::vector<Mat> mv;
+        if ((channel == Magnitude) || (channel == MagnitudeAndAngle)) {
+            const float theoreticalMaxMagnitude = sqrt(2*pow(float(2*(3+10+3)*255), 2.f));
+            mv.push_back(magnitude / theoreticalMaxMagnitude);
+        }
+        if ((channel == Angle) || (channel == MagnitudeAndAngle))
+            mv.push_back(angle);
+        Mat result;
+        merge(mv, result);
+        dst.append(result);
+    }
+};
+
+BR_REGISTER(Transform, GradientTransform)
+
+} // namespace br
+
+#include "gradient.moc"
+#include <opencv2/imgproc/imgproc.hpp>
+
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Histograms the matrix
+ * \author Josh Klontz \cite jklontz
+ */
+class HistTransform : public UntrainableTransform
+{
+    Q_OBJECT
+    Q_PROPERTY(float max READ get_max WRITE set_max RESET reset_max STORED false)
+    Q_PROPERTY(float min READ get_min WRITE set_min RESET reset_min STORED false)
+    Q_PROPERTY(int dims READ get_dims WRITE set_dims RESET reset_dims STORED false)
+    BR_PROPERTY(float, max, 256)
+    BR_PROPERTY(float, min, 0)
+    BR_PROPERTY(int, dims, -1)
+
+    void project(const Template &src, Template &dst) const
+    {
+        const int dims = this->dims == -1 ? max - min : this->dims;
+
+        std::vector<Mat> mv;
+        split(src, mv);
+        Mat m(mv.size(), dims, CV_32FC1);
+
+        for (size_t i=0; i<mv.size(); i++) {
+            int channels[] = {0};
+            int histSize[] = {dims};
+            float range[] = {min, max};
+            const float* ranges[] = {range};
+            Mat hist, chan = mv[i];
+            // calcHist requires F or U, might as well convert just in case
+            if (mv[i].depth() != CV_8U && mv[i].depth() != CV_32F)
+                mv[i].convertTo(chan, CV_32F);
+            calcHist(&chan, 1, channels, Mat(), hist, 1, histSize, ranges);
+            memcpy(m.ptr(i), hist.ptr(), dims * sizeof(float));
+        }
+
+        dst += m;
+    }
+};
+
+BR_REGISTER(Transform, HistTransform)
+
+} // namespace br
+
+#include "hist.moc"
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
- * Copyright 2012 The MITRE Corporation                                      *
- *                                                                           *
- * Licensed under the Apache License, Version 2.0 (the "License");           *
- * you may not use this file except in compliance with the License.          *
- * You may obtain a copy of the License at                                   *
- *                                                                           *
- *     http://www.apache.org/licenses/LICENSE-2.0                            *
- *                                                                           *
- * Unless required by applicable law or agreed to in writing, software       *
- * distributed under the License is distributed on an "AS IS" BASIS,         *
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  *
- * See the License for the specific language governing permissions and       *
- * limitations under the License.                                            *
- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-#include <opencv2/imgproc/imgproc.hpp>
-#include "openbr_internal.h"
-#include "openbr/core/common.h"
-#include "openbr/core/opencvutils.h"
+#include <openbr/plugins/openbr_internal.h>
  
 using namespace cv;
  
@@ -26,52 +7,10 @@ namespace br
  
 /*!
  * \ingroup transforms
- * \brief Histograms the matrix
- * \author Josh Klontz \cite jklontz
- */
-class HistTransform : public UntrainableTransform
-{
-    Q_OBJECT
-    Q_PROPERTY(float max READ get_max WRITE set_max RESET reset_max STORED false)
-    Q_PROPERTY(float min READ get_min WRITE set_min RESET reset_min STORED false)
-    Q_PROPERTY(int dims READ get_dims WRITE set_dims RESET reset_dims STORED false)
-    BR_PROPERTY(float, max, 256)
-    BR_PROPERTY(float, min, 0)
-    BR_PROPERTY(int, dims, -1)
-
-    void project(const Template &src, Template &dst) const
-    {
-        const int dims = this->dims == -1 ? max - min : this->dims;
-
-        std::vector<Mat> mv;
-        split(src, mv);
-        Mat m(mv.size(), dims, CV_32FC1);
-
-        for (size_t i=0; i<mv.size(); i++) {
-            int channels[] = {0};
-            int histSize[] = {dims};
-            float range[] = {min, max};
-            const float* ranges[] = {range};
-            Mat hist, chan = mv[i];
-            // calcHist requires F or U, might as well convert just in case
-            if (mv[i].depth() != CV_8U && mv[i].depth() != CV_32F)
-                mv[i].convertTo(chan, CV_32F);
-            calcHist(&chan, 1, channels, Mat(), hist, 1, histSize, ranges);
-            memcpy(m.ptr(i), hist.ptr(), dims * sizeof(float));
-        }
-
-        dst += m;
-    }
-};
-
-BR_REGISTER(Transform, HistTransform)
-
-/*!
- * \ingroup transforms
  * \brief Quantizes the values into bins.
  * \author Josh Klontz \cite jklontz
  */
-class BinTransform : public UntrainableTransform
+class HistBinTransform : public UntrainableTransform
 {
     Q_OBJECT
     Q_PROPERTY(float min READ get_min WRITE set_min RESET reset_min STORED false)
@@ -120,76 +59,8 @@ class BinTransform : public UntrainableTransform
     }
 };
  
-BR_REGISTER(Transform, BinTransform)
-
-/*!
- * \ingroup transforms
- * \brief Converts each element to its rank-ordered value.
- * \author Josh Klontz \cite jklontz
- */
-class RankTransform : public UntrainableTransform
-{
-    Q_OBJECT
-
-    void project(const Template &src, Template &dst) const
-    {
-        const Mat &m = src;
-        assert(m.channels() == 1);
-        dst = Mat(m.rows, m.cols, CV_32FC1);
-        typedef QPair<float,int> Tuple;
-        QList<Tuple> tuples = Common::Sort(OpenCVUtils::matrixToVector<float>(m));
-
-        float prevValue = 0;
-        int prevRank = 0;
-        for (int i=0; i<tuples.size(); i++) {
-            int rank;
-            if (tuples[i].first == prevValue) rank = prevRank;
-            else                              rank = i;
-            dst.m().at<float>(tuples[i].second / m.cols, tuples[i].second % m.cols) = rank;
-            prevValue = tuples[i].first;
-            prevRank = rank;
-        }
-    }
-};
-
-BR_REGISTER(Transform, RankTransform)
-
-/*!
- * \ingroup transforms
- * \brief An integral histogram
- * \author Josh Klontz \cite jklontz
- */
-class IntegralHistTransform : public UntrainableTransform
-{
-    Q_OBJECT
-    Q_PROPERTY(int bins READ get_bins WRITE set_bins RESET reset_bins STORED false)
-    Q_PROPERTY(int radius READ get_radius WRITE set_radius RESET reset_radius STORED false)
-    BR_PROPERTY(int, bins, 256)
-    BR_PROPERTY(int, radius, 16)
-
-    void project(const Template &src, Template &dst) const
-    {
-        const Mat &m = src.m();
-        if (m.type() != CV_8UC1) qFatal("IntegralHist requires 8UC1 matrices.");
-
-        Mat integral(m.rows/radius+1, (m.cols/radius+1)*bins, CV_32SC1);
-        integral.setTo(0);
-        for (int i=1; i<integral.rows; i++) {
-            for (int j=1; j<integral.cols; j+=bins) {
-                for (int k=0; k<bins; k++) integral.at<qint32>(i, j+k) += integral.at<qint32>(i-1, j     +k);
-                for (int k=0; k<bins; k++) integral.at<qint32>(i, j+k) += integral.at<qint32>(i  , j-bins+k);
-                for (int k=0; k<bins; k++) integral.at<qint32>(i, j+k) -= integral.at<qint32>(i-1, j-bins+k);
-                for (int k=0; k<radius; k++)
-                    for (int l=0; l<radius; l++)
-                        integral.at<qint32>(i, j+m.at<quint8>((i-1)*radius+k,(j/bins-1)*radius+l))++;
-            }
-        }
-        dst = integral;
-    }
-};
-
-BR_REGISTER(Transform, IntegralHistTransform)
+BR_REGISTER(Transform, HistBinTransform)
  
 } // namespace br
  
-#include "hist.moc"
+#include "histbin.moc"
+#include <opencv2/photo/photo.hpp>
+
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Wraps OpenCV inpainting
+ * \author Josh Klontz \cite jklontz
+ */
+class InpaintTransform : public UntrainableTransform
+{
+    Q_OBJECT
+    Q_ENUMS(Method)
+    Q_PROPERTY(int radius READ get_radius WRITE set_radius RESET reset_radius STORED false)
+    Q_PROPERTY(Method method READ get_method WRITE set_method RESET reset_method STORED false)
+
+public:
+    /*!< */
+    enum Method { NavierStokes = INPAINT_NS,
+                  Telea = INPAINT_TELEA };
+
+private:
+    BR_PROPERTY(int, radius, 1)
+    BR_PROPERTY(Method, method, NavierStokes)
+    Transform *cvtGray;
+
+    void init()
+    {
+        cvtGray = make("Cvt(Gray)");
+    }
+
+    void project(const Template &src, Template &dst) const
+    {
+        inpaint(src, (*cvtGray)(src)<5, dst, radius, method);
+    }
+};
+
+} // namespace br
+
+#include "inpaint.moc"
+#include <opencv2/imgproc/imgproc.hpp>
+
+#include <openbr/plugins/openbr_internal.h>
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Computes integral image.
+ * \author Josh Klontz \cite jklontz
+ */
+class IntegralTransform : public UntrainableTransform
+{
+    Q_OBJECT
+
+    void project(const Template &src, Template &dst) const
+    {
+        cv::integral(src, dst);
+    }
+};
+
+BR_REGISTER(Transform, IntegralTransform)
+
+} // namespace br
+
+#include "integral.moc"
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief An integral histogram
+ * \author Josh Klontz \cite jklontz
+ */
+class IntegralHistTransform : public UntrainableTransform
+{
+    Q_OBJECT
+    Q_PROPERTY(int bins READ get_bins WRITE set_bins RESET reset_bins STORED false)
+    Q_PROPERTY(int radius READ get_radius WRITE set_radius RESET reset_radius STORED false)
+    BR_PROPERTY(int, bins, 256)
+    BR_PROPERTY(int, radius, 16)
+
+    void project(const Template &src, Template &dst) const
+    {
+        const Mat &m = src.m();
+        if (m.type() != CV_8UC1) qFatal("IntegralHist requires 8UC1 matrices.");
+
+        Mat integral(m.rows/radius+1, (m.cols/radius+1)*bins, CV_32SC1);
+        integral.setTo(0);
+        for (int i=1; i<integral.rows; i++) {
+            for (int j=1; j<integral.cols; j+=bins) {
+                for (int k=0; k<bins; k++) integral.at<qint32>(i, j+k) += integral.at<qint32>(i-1, j     +k);
+                for (int k=0; k<bins; k++) integral.at<qint32>(i, j+k) += integral.at<qint32>(i  , j-bins+k);
+                for (int k=0; k<bins; k++) integral.at<qint32>(i, j+k) -= integral.at<qint32>(i-1, j-bins+k);
+                for (int k=0; k<radius; k++)
+                    for (int l=0; l<radius; l++)
+                        integral.at<qint32>(i, j+m.at<quint8>((i-1)*radius+k,(j/bins-1)*radius+l))++;
+            }
+        }
+        dst = integral;
+    }
+};
+
+BR_REGISTER(Transform, IntegralHistTransform)
+
+} // namespace br
+
+#include "integralhist.moc"
-#include <opencv2/imgproc/imgproc.hpp>
-#include <opencv2/imgproc/imgproc_c.h>
-#include <Eigen/Core>
-#include "openbr_internal.h"
+#include <Eigen/Dense>
  
-#include "openbr/core/opencvutils.h"
+#include <openbr/plugins/openbr_internal.h>
  
 using namespace cv;
  
@@ -12,23 +9,6 @@ namespace br
  
 /*!
  * \ingroup transforms
- * \brief Computes integral image.
- * \author Josh Klontz \cite jklontz
- */
-class IntegralTransform : public UntrainableTransform
-{
-    Q_OBJECT
-
-    void project(const Template &src, Template &dst) const
-    {
-        integral(src, dst);
-    }
-};
-
-BR_REGISTER(Transform, IntegralTransform)
-
-/*!
- * \ingroup transforms
  * \brief Sliding window feature extraction from a multi-channel integral image.
  * \author Josh Klontz \cite jklontz
  */
@@ -121,254 +101,6 @@ class IntegralSamplerTransform : public UntrainableTransform
  
 BR_REGISTER(Transform, IntegralSamplerTransform)
  
-/*!
- * \ingroup transforms
- * \brief Construct template in a recursive decent manner.
- * \author Josh Klontz \cite jklontz
- */
-class RecursiveIntegralSamplerTransform : public Transform
-{
-    Q_OBJECT
-    Q_PROPERTY(int scales READ get_scales WRITE set_scales RESET reset_scales STORED false)
-    Q_PROPERTY(float scaleFactor READ get_scaleFactor WRITE set_scaleFactor RESET reset_scaleFactor STORED false)
-    Q_PROPERTY(int minSize READ get_minSize WRITE set_minSize RESET reset_minSize STORED false)
-    Q_PROPERTY(br::Transform *transform READ get_transform WRITE set_transform RESET reset_transform)
-    BR_PROPERTY(int, scales, 6)
-    BR_PROPERTY(float, scaleFactor, 2)
-    BR_PROPERTY(int, minSize, 8)
-    BR_PROPERTY(br::Transform*, transform, NULL)
-
-    Transform *subTransform;
-
-    typedef Eigen::Map< const Eigen::Matrix<qint32,Eigen::Dynamic,1> > InputDescriptor;
-    typedef Eigen::Map< Eigen::Matrix<float,Eigen::Dynamic,1> > OutputDescriptor;
-    typedef Eigen::Map< const Eigen::Matrix<float,Eigen::Dynamic,1> > SecondOrderInputDescriptor;
-
-    void init()
-    {
-        if (scales >= 2) {
-            File subFile = file;
-            subFile.set("scales", scales-1);
-            subTransform = make(subFile.flat());
-        } else {
-            subTransform = NULL;
-        }
-    }
-
-    static void integralHistogram(const Mat &src, const int x, const int y, const int width, const int height, Mat &dst, int index)
-    {
-        const int channels = src.channels();
-        OutputDescriptor(dst.ptr<float>(index), channels, 1) =
-            (  InputDescriptor(src.ptr<qint32>(y+height, x+width), channels, 1)
-             - InputDescriptor(src.ptr<qint32>(y,        x+width), channels, 1)
-             - InputDescriptor(src.ptr<qint32>(y+height, x),       channels, 1)
-             + InputDescriptor(src.ptr<qint32>(y,        x),       channels, 1)).cast<float>()/(height*width);
-    }
-
-    void computeDescriptor(const Mat &src, Mat &dst) const
-    {
-        const int channels = src.channels();
-        const int rows = src.rows-1; // Integral images have an extra row and column
-        const int columns = src.cols-1;
-
-        Mat tmp(5, channels, CV_32FC1);
-        integralHistogram(src,         0,      0, columns/2, rows/2, tmp, 0);
-        integralHistogram(src, columns/2,      0, columns/2, rows/2, tmp, 1);
-        integralHistogram(src,         0, rows/2, columns/2, rows/2, tmp, 2);
-        integralHistogram(src, columns/2, rows/2, columns/2, rows/2, tmp, 3);
-        integralHistogram(src, columns/4, rows/4, columns/2, rows/2, tmp, 4);
-        const SecondOrderInputDescriptor a(tmp.ptr<float>(0), channels, 1);
-        const SecondOrderInputDescriptor b(tmp.ptr<float>(1), channels, 1);
-        const SecondOrderInputDescriptor c(tmp.ptr<float>(2), channels, 1);
-        const SecondOrderInputDescriptor d(tmp.ptr<float>(3), channels, 1);
-        const SecondOrderInputDescriptor e(tmp.ptr<float>(4), channels, 1);
-
-        dst = Mat(5, channels, CV_32FC1);
-        OutputDescriptor(dst.ptr<float>(0), channels, 1) = (a+b+c+d)/4.f;
-        OutputDescriptor(dst.ptr<float>(1), channels, 1) = ((a+b+c+d)/4.f-e);
-        OutputDescriptor(dst.ptr<float>(2), channels, 1) = ((a+b)-(c+d))/2.f;
-        OutputDescriptor(dst.ptr<float>(3), channels, 1) = ((a+c)-(b+d))/2.f;
-        OutputDescriptor(dst.ptr<float>(4), channels, 1) = ((a+d)-(b+c))/2.f;
-        dst = dst.reshape(1, 1);
-    }
-
-    Template subdivide(const Template &src) const
-    {
-        // Integral images have an extra row and column
-        int subWidth = (src.m().cols-1) / scaleFactor + 1;
-        int subHeight = (src.m().rows-1) / scaleFactor + 1;
-        return Template(src.file, QList<Mat>() << Mat(src, Rect(0,                     0, subWidth, subHeight))
-                                               << Mat(src, Rect(src.m().cols-subWidth, 0, subWidth, subHeight))
-                                               << Mat(src, Rect(0,                     src.m().rows-subHeight, subWidth, subHeight))
-                                               << Mat(src, Rect(src.m().cols-subWidth, src.m().rows-subHeight, subWidth, subHeight)));
-    }
-
-    bool canSubdivide(const Template &t) const
-    {
-        // Integral images have an extra row and column
-        const int subWidth = (t.m().cols-1) / scaleFactor;
-        const int subHeight = (t.m().rows-1) / scaleFactor;
-        return ((subWidth >= minSize) && (subHeight >= minSize));
-    }
-
-    void train(const TemplateList &src)
-    {
-        if (src.first().m().depth() != CV_32S)
-            qFatal("Expected CV_32S depth!");
-
-        if (subTransform != NULL) {
-            TemplateList subSrc; subSrc.reserve(src.size());
-            foreach (const Template &t, src)
-                if (canSubdivide(t))
-                    subSrc.append(subdivide(t));
-
-            if (subSrc.isEmpty()) {
-                delete subTransform;
-                subTransform = NULL;
-            } else {
-                subTransform->train(subSrc);
-            }
-        }
-
-        TemplateList dst; dst.reserve(src.size());
-        foreach (const Template &t, src) {
-            Template u(t.file);
-            computeDescriptor(t, u);
-            dst.append(u);
-        }
-        transform->train(dst);
-    }
-
-    void project(const Template &src, Template &dst) const
-    {
-        computeDescriptor(src, dst);
-        transform->project(dst, dst);
-
-        if ((subTransform != NULL) && canSubdivide(src)) {
-            Template subDst;
-            subTransform->project(subdivide(src), subDst);
-            dst.append(subDst);
-        }
-    }
-
-    void store(QDataStream &stream) const
-    {
-        transform->store(stream);
-        stream << (subTransform != NULL);
-        if (subTransform != NULL)
-            subTransform->store(stream);
-    }
-
-    void load(QDataStream &stream)
-    {
-        transform->load(stream);
-        bool hasSubTransform;
-        stream >> hasSubTransform;
-        if (hasSubTransform) subTransform->load(stream);
-        else                 { delete subTransform; subTransform = NULL; }
-    }
-};
-
-BR_REGISTER(Transform, RecursiveIntegralSamplerTransform)
-
-/*!
- * \ingroup transforms
- * \brief Computes magnitude and/or angle of image.
- * \author Josh Klontz \cite jklontz
- */
-class GradientTransform : public UntrainableTransform
-{
-    Q_OBJECT
-    Q_ENUMS(Channel)
-    Q_PROPERTY(Channel channel READ get_channel WRITE set_channel RESET reset_channel STORED false)
-
-public:
-    enum Channel { Magnitude, Angle, MagnitudeAndAngle };
-
-private:
-    BR_PROPERTY(Channel, channel, Angle)
-
-    void project(const Template &src, Template &dst) const
-    {
-        Mat dx, dy, magnitude, angle;
-        Sobel(src, dx, CV_32F, 1, 0, CV_SCHARR);
-        Sobel(src, dy, CV_32F, 0, 1, CV_SCHARR);
-        cartToPolar(dx, dy, magnitude, angle, true);
-        std::vector<Mat> mv;
-        if ((channel == Magnitude) || (channel == MagnitudeAndAngle)) {
-            const float theoreticalMaxMagnitude = sqrt(2*pow(float(2*(3+10+3)*255), 2.f));
-            mv.push_back(magnitude / theoreticalMaxMagnitude);
-        }
-        if ((channel == Angle) || (channel == MagnitudeAndAngle))
-            mv.push_back(angle);
-        Mat result;
-        merge(mv, result);
-        dst.append(result);
-    }
-};
-
-BR_REGISTER(Transform, GradientTransform)
-
-/*!
- * \ingroup transforms
- * \brief Projects each row based on a computed word.
- * \author Josh Klontz \cite jklontz
- */
-class WordWiseTransform : public Transform
-{
-    Q_OBJECT
-    Q_PROPERTY(br::Transform* getWords READ get_getWords WRITE set_getWords RESET reset_getWords)
-    Q_PROPERTY(br::Transform* byWord READ get_byWord WRITE set_byWord RESET reset_byWord)
-    Q_PROPERTY(int numWords READ get_numWords WRITE set_numWords RESET reset_numWords)
-    BR_PROPERTY(br::Transform*, getWords, NULL)
-    BR_PROPERTY(br::Transform*, byWord, NULL)
-    BR_PROPERTY(int, numWords, 0)
-
-    void train(const TemplateList &data)
-    {
-        getWords->train(data);
-        TemplateList bins;
-        getWords->project(data, bins);
-
-        numWords = 0;
-        foreach (const Template &t, bins) {
-            double minVal, maxVal;
-            minMaxLoc(t, &minVal, &maxVal);
-            numWords = max(numWords, int(maxVal)+1);
-        }
-
-        TemplateList reworded; reworded.reserve(data.size());
-        foreach (const Template &t, data)
-            reworded.append(reword(t));
-        byWord->train(reworded);
-    }
-
-    void project(const Template &src, Template &dst) const
-    {
-        byWord->project(reword(src), dst);
-    }
-
-    Template reword(const Template &src) const
-    {
-        Template words;
-        getWords->project(src, words);
-        QVector<int> wordCounts(numWords, 0);
-        for (int i=0; i<words.m().rows; i++)
-            wordCounts[words.m().at<uchar>(i,0)]++;
-        Template reworded(src.file); reworded.reserve(numWords);
-        for (int i=0; i<numWords; i++)
-            reworded.append(Mat(wordCounts[i], src.m().cols, src.m().type()));
-        QVector<int> indicies(numWords, 0);
-        for (int i=0; i<src.m().rows; i++) {
-            const int word = words.m().at<uchar>(i,0);
-            src.m().row(i).copyTo(reworded[word].row(indicies[word]++));
-        }
-        return reworded;
-    }
-};
-
-BR_REGISTER(Transform, WordWiseTransform)
-
 } // namespace br
  
-#include "integral.moc"
+#include "integralsampler.moc"
+#include <opencv2/imgproc/imgproc.hpp>
+
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Limit the size of the template
+ * \author Josh Klontz \cite jklontz
+ */
+class LimitSizeTransform : public UntrainableTransform
+{
+    Q_OBJECT
+    Q_PROPERTY(int max READ get_max WRITE set_max RESET reset_max STORED false)
+    BR_PROPERTY(int, max, -1)
+
+    void project(const Template &src, Template &dst) const
+    {
+        const Mat &m = src;
+        if (m.rows > m.cols)
+            if (m.rows > max) resize(m, dst, Size(std::max(1, m.cols * max / m.rows), max));
+            else              dst = m;
+        else
+            if (m.cols > max) resize(m, dst, Size(max, std::max(1, m.rows * max / m.cols)));
+            else              dst = m;
+    }
+};
+
+BR_REGISTER(Transform, LimitSizeTransform)
+
+} // namespace br
+
+#include "limitsize.moc"
+#include <openbr/plugins/openbr_internal.h>
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief dst = a*src+b
+ * \author Josh Klontz \cite jklontz
+ */
+class MAddTransform : public UntrainableTransform
+{
+    Q_OBJECT
+    Q_PROPERTY(double a READ get_a WRITE set_a RESET reset_a STORED false)
+    Q_PROPERTY(double b READ get_b WRITE set_b RESET reset_b STORED false)
+    BR_PROPERTY(double, a, 1)
+    BR_PROPERTY(double, b, 0)
+
+    void project(const Template &src, Template &dst) const
+    {
+        src.m().convertTo(dst.m(), src.m().depth(), a, b);
+    }
+};
+
+BR_REGISTER(Transform, MAddTransform)
+
+} // namespace br
+
+#include "madd.moc"
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Computes the mean of a set of templates.
+ * \note Suitable for visualization only as it sets every projected template to the mean template.
+ * \author Scott Klum \cite sklum
+ */
+class MeanTransform : public Transform
+{
+    Q_OBJECT
+
+    Mat mean;
+
+    void train(const TemplateList &data)
+    {
+        mean = Mat::zeros(data[0].m().rows,data[0].m().cols,CV_32F);
+
+        for (int i = 0; i < data.size(); i++) {
+            Mat converted;
+            data[i].m().convertTo(converted, CV_32F);
+            mean += converted;
+        }
+
+        mean /= data.size();
+    }
+
+    void project(const Template &src, Template &dst) const
+    {
+        dst = src;
+        dst.m() = mean;
+    }
+
+};
+
+BR_REGISTER(Transform, MeanTransform)
+
+} // namespace br
+
+#include "mean.moc"
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Fill 0 pixels with the mean of non-0 pixels.
+ * \author Josh Klontz \cite jklontz
+ */
+class MeanFillTransform : public UntrainableTransform
+{
+    Q_OBJECT
+
+    void project(const Template &src, Template &dst) const
+    {
+        dst = src.m().clone();
+        dst.m().setTo(mean(dst, dst.m()!=0), dst.m()==0);
+    }
+};
+
+BR_REGISTER(Transform, MeanFillTransform)
+
+} // namespace br
+
+#include "meanfill.moc"
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Raise each element to the specified power.
+ * \author Josh Klontz \cite jklontz
+ */
+class PowTransform : public UntrainableTransform
+{
+    Q_OBJECT
+    Q_PROPERTY(float power READ get_power WRITE set_power RESET reset_power STORED false)
+    Q_PROPERTY(bool preserveSign READ get_preserveSign WRITE set_preserveSign RESET reset_preserveSign STORED false)
+    BR_PROPERTY(float, power, 2)
+    BR_PROPERTY(bool, preserveSign, false)
+
+    void project(const Template &src, Template &dst) const
+    {
+        pow(preserveSign ? abs(src) : src.m(), power, dst);
+        if (preserveSign) subtract(Scalar::all(0), dst, dst, src.m() < 0);
+    }
+};
+
+BR_REGISTER(Transform, PowTransform)
+
+} // namespace br
+
+#include "pow.moc"
+#include <openbr/plugins/openbr_internal.h>
+#include <openbr/core/common.h>
+#include <openbr/core/opencvutils.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Converts each element to its rank-ordered value.
+ * \author Josh Klontz \cite jklontz
+ */
+class RankTransform : public UntrainableTransform
+{
+    Q_OBJECT
+
+    void project(const Template &src, Template &dst) const
+    {
+        const Mat &m = src;
+        assert(m.channels() == 1);
+        dst = Mat(m.rows, m.cols, CV_32FC1);
+        typedef QPair<float,int> Tuple;
+        QList<Tuple> tuples = Common::Sort(OpenCVUtils::matrixToVector<float>(m));
+
+        float prevValue = 0;
+        int prevRank = 0;
+        for (int i=0; i<tuples.size(); i++) {
+            int rank;
+            if (tuples[i].first == prevValue) rank = prevRank;
+            else                              rank = i;
+            dst.m().at<float>(tuples[i].second / m.cols, tuples[i].second % m.cols) = rank;
+            prevValue = tuples[i].first;
+            prevRank = rank;
+        }
+    }
+};
+
+BR_REGISTER(Transform, RankTransform)
+
+} // namespace br
+
+#include "rank.moc"
+#include <Eigen/Dense>
+
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Construct template in a recursive decent manner.
+ * \author Josh Klontz \cite jklontz
+ */
+class RecursiveIntegralSamplerTransform : public Transform
+{
+    Q_OBJECT
+    Q_PROPERTY(int scales READ get_scales WRITE set_scales RESET reset_scales STORED false)
+    Q_PROPERTY(float scaleFactor READ get_scaleFactor WRITE set_scaleFactor RESET reset_scaleFactor STORED false)
+    Q_PROPERTY(int minSize READ get_minSize WRITE set_minSize RESET reset_minSize STORED false)
+    Q_PROPERTY(br::Transform *transform READ get_transform WRITE set_transform RESET reset_transform)
+    BR_PROPERTY(int, scales, 6)
+    BR_PROPERTY(float, scaleFactor, 2)
+    BR_PROPERTY(int, minSize, 8)
+    BR_PROPERTY(br::Transform*, transform, NULL)
+
+    Transform *subTransform;
+
+    typedef Eigen::Map< const Eigen::Matrix<qint32,Eigen::Dynamic,1> > InputDescriptor;
+    typedef Eigen::Map< Eigen::Matrix<float,Eigen::Dynamic,1> > OutputDescriptor;
+    typedef Eigen::Map< const Eigen::Matrix<float,Eigen::Dynamic,1> > SecondOrderInputDescriptor;
+
+    void init()
+    {
+        if (scales >= 2) {
+            File subFile = file;
+            subFile.set("scales", scales-1);
+            subTransform = make(subFile.flat());
+        } else {
+            subTransform = NULL;
+        }
+    }
+
+    static void integralHistogram(const Mat &src, const int x, const int y, const int width, const int height, Mat &dst, int index)
+    {
+        const int channels = src.channels();
+        OutputDescriptor(dst.ptr<float>(index), channels, 1) =
+            (  InputDescriptor(src.ptr<qint32>(y+height, x+width), channels, 1)
+             - InputDescriptor(src.ptr<qint32>(y,        x+width), channels, 1)
+             - InputDescriptor(src.ptr<qint32>(y+height, x),       channels, 1)
+             + InputDescriptor(src.ptr<qint32>(y,        x),       channels, 1)).cast<float>()/(height*width);
+    }
+
+    void computeDescriptor(const Mat &src, Mat &dst) const
+    {
+        const int channels = src.channels();
+        const int rows = src.rows-1; // Integral images have an extra row and column
+        const int columns = src.cols-1;
+
+        Mat tmp(5, channels, CV_32FC1);
+        integralHistogram(src,         0,      0, columns/2, rows/2, tmp, 0);
+        integralHistogram(src, columns/2,      0, columns/2, rows/2, tmp, 1);
+        integralHistogram(src,         0, rows/2, columns/2, rows/2, tmp, 2);
+        integralHistogram(src, columns/2, rows/2, columns/2, rows/2, tmp, 3);
+        integralHistogram(src, columns/4, rows/4, columns/2, rows/2, tmp, 4);
+        const SecondOrderInputDescriptor a(tmp.ptr<float>(0), channels, 1);
+        const SecondOrderInputDescriptor b(tmp.ptr<float>(1), channels, 1);
+        const SecondOrderInputDescriptor c(tmp.ptr<float>(2), channels, 1);
+        const SecondOrderInputDescriptor d(tmp.ptr<float>(3), channels, 1);
+        const SecondOrderInputDescriptor e(tmp.ptr<float>(4), channels, 1);
+
+        dst = Mat(5, channels, CV_32FC1);
+        OutputDescriptor(dst.ptr<float>(0), channels, 1) = (a+b+c+d)/4.f;
+        OutputDescriptor(dst.ptr<float>(1), channels, 1) = ((a+b+c+d)/4.f-e);
+        OutputDescriptor(dst.ptr<float>(2), channels, 1) = ((a+b)-(c+d))/2.f;
+        OutputDescriptor(dst.ptr<float>(3), channels, 1) = ((a+c)-(b+d))/2.f;
+        OutputDescriptor(dst.ptr<float>(4), channels, 1) = ((a+d)-(b+c))/2.f;
+        dst = dst.reshape(1, 1);
+    }
+
+    Template subdivide(const Template &src) const
+    {
+        // Integral images have an extra row and column
+        int subWidth = (src.m().cols-1) / scaleFactor + 1;
+        int subHeight = (src.m().rows-1) / scaleFactor + 1;
+        return Template(src.file, QList<Mat>() << Mat(src, Rect(0,                     0, subWidth, subHeight))
+                                               << Mat(src, Rect(src.m().cols-subWidth, 0, subWidth, subHeight))
+                                               << Mat(src, Rect(0,                     src.m().rows-subHeight, subWidth, subHeight))
+                                               << Mat(src, Rect(src.m().cols-subWidth, src.m().rows-subHeight, subWidth, subHeight)));
+    }
+
+    bool canSubdivide(const Template &t) const
+    {
+        // Integral images have an extra row and column
+        const int subWidth = (t.m().cols-1) / scaleFactor;
+        const int subHeight = (t.m().rows-1) / scaleFactor;
+        return ((subWidth >= minSize) && (subHeight >= minSize));
+    }
+
+    void train(const TemplateList &src)
+    {
+        if (src.first().m().depth() != CV_32S)
+            qFatal("Expected CV_32S depth!");
+
+        if (subTransform != NULL) {
+            TemplateList subSrc; subSrc.reserve(src.size());
+            foreach (const Template &t, src)
+                if (canSubdivide(t))
+                    subSrc.append(subdivide(t));
+
+            if (subSrc.isEmpty()) {
+                delete subTransform;
+                subTransform = NULL;
+            } else {
+                subTransform->train(subSrc);
+            }
+        }
+
+        TemplateList dst; dst.reserve(src.size());
+        foreach (const Template &t, src) {
+            Template u(t.file);
+            computeDescriptor(t, u);
+            dst.append(u);
+        }
+        transform->train(dst);
+    }
+
+    void project(const Template &src, Template &dst) const
+    {
+        computeDescriptor(src, dst);
+        transform->project(dst, dst);
+
+        if ((subTransform != NULL) && canSubdivide(src)) {
+            Template subDst;
+            subTransform->project(subdivide(src), subDst);
+            dst.append(subDst);
+        }
+    }
+
+    void store(QDataStream &stream) const
+    {
+        transform->store(stream);
+        stream << (subTransform != NULL);
+        if (subTransform != NULL)
+            subTransform->store(stream);
+    }
+
+    void load(QDataStream &stream)
+    {
+        transform->load(stream);
+        bool hasSubTransform;
+        stream >> hasSubTransform;
+        if (hasSubTransform) subTransform->load(stream);
+        else                 { delete subTransform; subTransform = NULL; }
+    }
+};
+
+BR_REGISTER(Transform, RecursiveIntegralSamplerTransform)
+
+} // namespace br
+
+#include "recursiveintegralsampler.moc"
+#include <opencv2/imgproc/imgproc.hpp>
+
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Resize the template
+ * \author Josh Klontz \cite jklontz
+ * \note Method: Area should be used for shrinking an image, Cubic for slow but accurate enlargment, Bilin for fast enlargement.
+ * \param preserveAspect If true, the image will be sized per specification, but
+ * 	a border will be applied to preserve aspect ratio.
+ */
+class ResizeTransform : public UntrainableTransform
+{
+    Q_OBJECT
+    Q_ENUMS(Method)
+
+public:
+    /*!< */
+    enum Method { Near = INTER_NEAREST,
+                  Area = INTER_AREA,
+                  Bilin = INTER_LINEAR,
+                  Cubic = INTER_CUBIC,
+                  Lanczo = INTER_LANCZOS4};
+
+private:
+    Q_PROPERTY(int rows READ get_rows WRITE set_rows RESET reset_rows STORED false)
+    Q_PROPERTY(int columns READ get_columns WRITE set_columns RESET reset_columns STORED false)
+    Q_PROPERTY(Method method READ get_method WRITE set_method RESET reset_method STORED false)
+    Q_PROPERTY(bool preserveAspect READ get_preserveAspect WRITE set_preserveAspect RESET reset_preserveAspect STORED false)
+    BR_PROPERTY(int, rows, -1)
+    BR_PROPERTY(int, columns, -1)
+    BR_PROPERTY(Method, method, Bilin)
+    BR_PROPERTY(bool, preserveAspect, false)
+
+    void project(const Template &src, Template &dst) const
+    {
+        if (!preserveAspect)
+            resize(src, dst, Size((columns == -1) ? src.m().cols*rows/src.m().rows : columns, rows), 0, 0, method);
+        else {
+            float inRatio = (float) src.m().rows / src.m().cols;
+            float outRatio = (float) rows / columns;
+            dst = Mat::zeros(rows, columns, src.m().type());
+            if (outRatio > inRatio) {
+                float heightAR = src.m().rows * inRatio / outRatio;
+                Mat buffer;
+                resize(src, buffer, Size(columns, heightAR), 0, 0, method);
+                buffer.copyTo(dst.m()(Rect(0, (rows - heightAR) / 2, columns, heightAR)));
+            } else {
+                float widthAR = src.m().cols / inRatio * outRatio;
+                Mat buffer;
+                resize(src, buffer, Size(widthAR, rows), 0, 0, method);
+                buffer.copyTo(dst.m()(Rect((columns - widthAR) / 2, 0, widthAR, rows)));
+            }
+        }
+    }
+};
+
+BR_REGISTER(Transform, ResizeTransform)
+
+} // namespace br
+
+#include "resize.moc"
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Normalized RG color space.
+ * \author Josh Klontz \cite jklontz
+ */
+class RGTransform : public UntrainableTransform
+{
+    Q_OBJECT
+
+    void project(const Template &src, Template &dst) const
+    {
+        if (src.m().type() != CV_8UC3)
+            qFatal("Expected CV_8UC3 images.");
+
+        const Mat &m = src.m();
+        Mat R(m.size(), CV_8UC1); // R / (R+G+B)
+        Mat G(m.size(), CV_8UC1); // G / (R+G+B)
+
+        for (int i=0; i<m.rows; i++)
+            for (int j=0; j<m.cols; j++) {
+                Vec3b v = m.at<Vec3b>(i,j);
+                const int b = v[0];
+                const int g = v[1];
+                const int r = v[2];
+                const int sum = b + g + r;
+                if (sum > 0) {
+                    R.at<uchar>(i, j) = saturate_cast<uchar>(255.0*r/(r+g+b));
+                    G.at<uchar>(i, j) = saturate_cast<uchar>(255.0*g/(r+g+b));
+                } else {
+                    R.at<uchar>(i, j) = 0;
+                    G.at<uchar>(i, j) = 0;
+                }
+            }
+
+        dst.append(R);
+        dst.append(G);
+    }
+};
+
+BR_REGISTER(Transform, RGTransform)
+
+} // namespace br
+
+#include "rg.moc"
+#include <openbr/plugins/openbr_internal.h>
+#include <openbr/core/opencvutils.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Crops the rectangular regions of interest.
+ * \author Josh Klontz \cite jklontz
+ */
+class ROITransform : public UntrainableTransform
+{
+    Q_OBJECT
+    Q_PROPERTY(QString propName READ get_propName WRITE set_propName RESET reset_propName STORED false)
+    BR_PROPERTY(QString, propName, "")
+
+    void project(const Template &src, Template &dst) const
+    {
+        if (!propName.isEmpty()) {
+            QRectF rect = src.file.get<QRectF>(propName);
+            dst += src.m()(OpenCVUtils::toRect(rect));
+        } else if (!src.file.rects().empty()) {
+            foreach (const QRectF &rect, src.file.rects())
+                dst += src.m()(OpenCVUtils::toRect(rect));
+        } else if (src.file.contains(QStringList() << "X" << "Y" << "Width" << "Height")) {
+            dst += src.m()(Rect(src.file.get<int>("X"),
+                                src.file.get<int>("Y"),
+                                src.file.get<int>("Width"),
+                                src.file.get<int>("Height")));
+        } else {
+            dst = src;
+            if (Globals->verbose)
+                qWarning("No rects present in file.");
+        }
+        dst.file.clearRects();
+    }
+};
+
+BR_REGISTER(Transform, ROITransform)
+
+} // namespace br
+
+#include "roi.moc"
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Crops the rectangular regions of interest from given points and sizes.
+ * \author Austin Blanton \cite imaus10
+ */
+class ROIFromPtsTransform : public UntrainableTransform
+{
+    Q_OBJECT
+    Q_PROPERTY(int width READ get_width WRITE set_width RESET reset_width STORED false)
+    Q_PROPERTY(int height READ get_height WRITE set_height RESET reset_height STORED false)
+    BR_PROPERTY(int, width, 1)
+    BR_PROPERTY(int, height, 1)
+
+    void project(const Template &src, Template &dst) const
+    {
+        foreach (const QPointF &pt, src.file.points()) {
+            int x = pt.x() - (width/2);
+            int y = pt.y() - (height/2);
+            dst += src.m()(Rect(x, y, width, height));
+        }
+    }
+};
+
+BR_REGISTER(Transform, ROIFromPtsTransform)
+
+} // namespace br
+
+#include "roifrompoints.moc"
+#include <opencv2/imgproc/imgproc.hpp>
+
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Scales using the given factor
+ * \author Scott Klum \cite sklum
+ */
+class ScaleTransform : public UntrainableTransform
+{
+    Q_OBJECT
+
+    Q_PROPERTY(float scaleFactor READ get_scaleFactor WRITE set_scaleFactor RESET reset_scaleFactor STORED false)
+    BR_PROPERTY(float, scaleFactor, 1.)
+
+    void project(const Template &src, Template &dst) const
+    {
+         resize(src, dst, Size(src.m().cols*scaleFactor,src.m().rows*scaleFactor));
+    }
+};
+
+BR_REGISTER(Transform, ScaleTransform)
+
+} // namespace br
+
+#include "scale.moc"
+#include <opencv2/imgproc/imgproc.hpp>
+
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Split a multi-channel matrix into several single-channel matrices.
+ * \author Josh Klontz \cite jklontz
+ */
+class SplitChannelsTransform : public UntrainableTransform
+{
+    Q_OBJECT
+
+    void project(const Template &src, Template &dst) const
+    {
+        std::vector<Mat> mv;
+        split(src, mv);
+        foreach (const Mat &m, mv)
+            dst += m;
+    }
+};
+
+BR_REGISTER(Transform, SplitChannelsTransform)
+
+} // namespace br
+
+#include "splitchannels.moc"
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Divide the matrix into 4 smaller matricies of equal size.
+ * \author Josh Klontz \cite jklontz
+ */
+class SubdivideTransform : public UntrainableTransform
+{
+    Q_OBJECT
+
+    void project(const Template &src, Template &dst) const
+    {
+        const Mat &m = src;
+        const int subrows = m.rows/2;
+        const int subcolumns = m.cols/2;
+        dst.append(Mat(m,Rect(0,          0, subcolumns, subrows)).clone());
+        dst.append(Mat(m,Rect(subcolumns, 0, subcolumns, subrows)).clone());
+        dst.append(Mat(m,Rect(0,          subrows, subcolumns, subrows)).clone());
+        dst.append(Mat(m,Rect(subcolumns, subrows, subcolumns, subrows)).clone());
+    }
+};
+
+BR_REGISTER(Transform, SubdivideTransform)
+
+} // namespace br
+
+#include "subdivide.moc"
+#include <openbr/plugins/openbr_internal.h>
+#include <openbr/core/opencvutils.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Write all mats to disk as images.
+ * \author Brendan Klare \cite bklare
+ */
+class WriteTransform : public TimeVaryingTransform
+{
+    Q_OBJECT
+    Q_PROPERTY(QString outputDirectory READ get_outputDirectory WRITE set_outputDirectory RESET reset_outputDirectory STORED false)
+    Q_PROPERTY(QString imageName READ get_imageName WRITE set_imageName RESET reset_imageName STORED false)
+    Q_PROPERTY(QString imgExtension READ get_imgExtension WRITE set_imgExtension RESET reset_imgExtension STORED false)
+    BR_PROPERTY(QString, outputDirectory, "Temp")
+    BR_PROPERTY(QString, imageName, "image")
+    BR_PROPERTY(QString, imgExtension, "jpg")
+
+    int cnt;
+
+    void init() {
+        cnt = 0;
+        if (! QDir(outputDirectory).exists())
+            QDir().mkdir(outputDirectory);
+    }
+
+    void projectUpdate(const Template &src, Template &dst)
+    {
+        dst = src;
+        OpenCVUtils::saveImage(dst.m(), QString("%1/%2_%3.%4").arg(outputDirectory).arg(imageName).arg(cnt++, 5, 10, QChar('0')).arg(imgExtension));
+    }
+
+};
+
+BR_REGISTER(Transform, WriteTransform)
+
+} // namespace br
+
+#include "write.moc"
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
- * Copyright 2012 The MITRE Corporation                                      *
- *                                                                           *
- * Licensed under the Apache License, Version 2.0 (the "License");           *
- * you may not use this file except in compliance with the License.          *
- * You may obtain a copy of the License at                                   *
- *                                                                           *
- *     http://www.apache.org/licenses/LICENSE-2.0                            *
- *                                                                           *
- * Unless required by applicable law or agreed to in writing, software       *
- * distributed under the License is distributed on an "AS IS" BASIS,         *
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  *
- * See the License for the specific language governing permissions and       *
- * limitations under the License.                                            *
- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-#include <opencv2/features2d/features2d.hpp>
-#include <opencv2/objdetect/objdetect.hpp>
-#include <opencv2/nonfree/nonfree.hpp>
-#include "openbr_internal.h"
-#include "openbr/core/opencvutils.h"
-
-using namespace cv;
-
-namespace br
-{
-
-/*!
- * \ingroup transforms
- * \brief Wraps OpenCV Key Point Detector
- * \author Josh Klontz \cite jklontz
- */
-class KeyPointDetectorTransform : public UntrainableTransform
-{
-    Q_OBJECT
-    Q_PROPERTY(QString detector READ get_detector WRITE set_detector RESET reset_detector STORED false)
-    BR_PROPERTY(QString, detector, "SIFT")
-
-    Ptr<FeatureDetector> featureDetector;
-
-    void init()
-    {
-        featureDetector = FeatureDetector::create(detector.toStdString());
-        if (featureDetector.empty())
-            qFatal("Failed to create KeyPointDetector: %s", qPrintable(detector));
-    }
-
-    void project(const Template &src, Template &dst) const
-    {
-        dst = src;
-
-        std::vector<KeyPoint> keyPoints;
-        try {
-            featureDetector->detect(src, keyPoints);
-        } catch (...) {
-            qWarning("Key point detection failed for file %s", qPrintable(src.file.name));
-            dst.file.fte = true;
-        }
-
-        QList<Rect> rects;
-        foreach (const KeyPoint &keyPoint, keyPoints)
-            rects.append(Rect(keyPoint.pt.x-keyPoint.size/2, keyPoint.pt.y-keyPoint.size/2, keyPoint.size, keyPoint.size));
-        dst.file.setRects(OpenCVUtils::fromRects(rects));
-    }
-};
-
-BR_REGISTER(Transform, KeyPointDetectorTransform)
-
-/*!
- * \ingroup transforms
- * \brief Wraps OpenCV Key Point Descriptor
- * \author Josh Klontz \cite jklontz
- */
-class KeyPointDescriptorTransform : public UntrainableTransform
-{
-    Q_OBJECT
-    Q_PROPERTY(QString descriptor READ get_descriptor WRITE set_descriptor RESET reset_descriptor STORED false)
-    Q_PROPERTY(int size READ get_size WRITE set_size RESET reset_size STORED false)
-    BR_PROPERTY(QString, descriptor, "SIFT")
-    BR_PROPERTY(int, size, -1)
-
-    Ptr<DescriptorExtractor> descriptorExtractor;
-
-    void init()
-    {
-        descriptorExtractor = DescriptorExtractor::create(descriptor.toStdString());
-        if (descriptorExtractor.empty())
-            qFatal("Failed to create DescriptorExtractor: %s", qPrintable(descriptor));
-    }
-
-    void project(const Template &src, Template &dst) const
-    {
-        std::vector<KeyPoint> keyPoints;
-        if (size == -1)
-            foreach (const QRectF &ROI, src.file.rects())
-                keyPoints.push_back(KeyPoint(ROI.x()+ROI.width()/2, ROI.y()+ROI.height()/2, (ROI.width() + ROI.height())/2));
-        else
-            foreach (const QPointF &landmark, src.file.points())
-                keyPoints.push_back(KeyPoint(landmark.x(), landmark.y(), size));
-        if (keyPoints.empty()) return;
-        descriptorExtractor->compute(src, keyPoints, dst);
-    }
-};
-
-BR_REGISTER(Transform, KeyPointDescriptorTransform)
-
-/*!
- * \ingroup transforms
- * \brief Wraps OpenCV Key Point Matcher
- * \author Josh Klontz \cite jklontz
- */
-class KeyPointMatcherDistance : public UntrainableDistance
-{
-    Q_OBJECT
-    Q_PROPERTY(QString matcher READ get_matcher WRITE set_matcher RESET reset_matcher STORED false)
-    Q_PROPERTY(float maxRatio READ get_maxRatio WRITE set_maxRatio RESET reset_maxRatio STORED false)
-    BR_PROPERTY(QString, matcher, "BruteForce")
-    BR_PROPERTY(float, maxRatio, 0.8)
-
-    Ptr<DescriptorMatcher> descriptorMatcher;
-
-    void init()
-    {
-        descriptorMatcher = DescriptorMatcher::create(matcher.toStdString());
-        if (descriptorMatcher.empty())
-            qFatal("Failed to create DescriptorMatcher: %s", qPrintable(matcher));
-    }
-
-    float compare(const Mat &a, const Mat &b) const
-    {
-        if ((a.rows < 2) || (b.rows < 2)) return 0;
-
-        std::vector< std::vector<DMatch> > matches;
-        if (a.rows < b.rows) descriptorMatcher->knnMatch(a, b, matches, 2);
-        else                 descriptorMatcher->knnMatch(b, a, matches, 2);
-
-        QList<float> distances;
-        foreach (const std::vector<DMatch> &match, matches) {
-            if (match[0].distance / match[1].distance > maxRatio) continue;
-            distances.append(match[0].distance);
-        }
-        qSort(distances);
-
-        float similarity = 0;
-        for (int i=0; i<distances.size(); i++)
-            similarity += 1.f/(1+distances[i])/(i+1);
-        return similarity;
-    }
-};
-
-BR_REGISTER(Distance, KeyPointMatcherDistance)
-
-/*!
- * \ingroup transforms
- * \brief Specialize wrapper OpenCV SIFT wrapper
- * \author Josh Klontz \cite jklontz
- */
-class SIFTDescriptorTransform : public UntrainableTransform
-{
-    Q_OBJECT
-    Q_PROPERTY(int size READ get_size WRITE set_size RESET reset_size STORED false)
-    Q_PROPERTY(QList<int> sizes READ get_sizes WRITE set_sizes RESET reset_sizes STORED false)
-    Q_PROPERTY(int nFeatures READ get_nFeatures WRITE set_nFeatures RESET reset_nFeatures STORED false)
-    Q_PROPERTY(int nOctaveLayers READ get_nOctaveLayers WRITE set_nOctaveLayers RESET reset_nOctaveLayers STORED false)
-    Q_PROPERTY(double contrastThreshold READ get_contrastThreshold WRITE set_contrastThreshold RESET reset_contrastThreshold STORED false)
-    Q_PROPERTY(double edgeThreshold READ get_edgeThreshold WRITE set_edgeThreshold RESET reset_edgeThreshold STORED false)
-    Q_PROPERTY(double sigma READ get_sigma WRITE set_sigma RESET reset_sigma STORED false)
-    BR_PROPERTY(int, size, 1)
-    BR_PROPERTY(QList<int>, sizes, QList<int>())
-    BR_PROPERTY(int, nFeatures, 0)
-    BR_PROPERTY(int, nOctaveLayers, 3)
-    BR_PROPERTY(double, contrastThreshold, 0.04)
-    BR_PROPERTY(double, edgeThreshold, 10)
-    BR_PROPERTY(double, sigma, 1.6)
-
-    SIFT sift;
-
-    void init()
-    {
-        if (sizes.empty())
-            sizes.append(size);
-        sift = SIFT(nFeatures, nOctaveLayers, contrastThreshold, edgeThreshold, sigma);
-    }
-
-    void project(const Template &src, Template &dst) const
-    {
-        std::vector<KeyPoint> keyPoints;
-        foreach (const QPointF &val, src.file.points())
-            foreach (const int r, sizes)
-                keyPoints.push_back(KeyPoint(val.x(), val.y(), r));
-
-        Mat m;
-        sift(src, Mat(), keyPoints, m, true);
-        m.setTo(0, m<0); // SIFT returns large negative values when it goes off the edge of the image.
-        dst += m;
-    }
-};
-
-BR_REGISTER(Transform, SIFTDescriptorTransform)
-
-/*!
- * \ingroup transforms
- * \brief OpenCV HOGDescriptor wrapper
- * \author Austin Blanton \cite imaus10
- */
-class HoGDescriptorTransform : public UntrainableTransform
-{
-    Q_OBJECT
-
-    HOGDescriptor hog;
-
-    void project(const Template &src, Template &dst) const
-    {
-        std::vector<float> descriptorVals;
-        std::vector<Point> locations;
-        Size winStride = Size(0,0);
-        Size padding = Size(0,0);
-        foreach (const Mat &rect, src) {
-            hog.compute(rect, descriptorVals, winStride, padding, locations);
-            Mat HoGFeats(descriptorVals, true);
-            dst += HoGFeats;
-        }
-    }
-};
-
-BR_REGISTER(Transform, HoGDescriptorTransform)
-
-/*!
- * \ingroup transforms
- * \brief Add landmarks to the template in a grid layout
- * \author Josh Klontz \cite jklontz
- */
-class GridTransform : public UntrainableTransform
-{
-    Q_OBJECT
-    Q_PROPERTY(int rows READ get_rows WRITE set_rows RESET reset_rows STORED false)
-    Q_PROPERTY(int columns READ get_columns WRITE set_columns RESET reset_columns STORED false)
-    BR_PROPERTY(int, rows, 1)
-    BR_PROPERTY(int, columns, 1)
-
-    void project(const Template &src, Template &dst) const
-    {
-        QList<QPointF> landmarks;
-        const float row_step = 1.f * src.m().rows / rows;
-        const float column_step = 1.f * src.m().cols / columns;
-        for (float y=row_step/2; y<src.m().rows; y+=row_step)
-            for (float x=column_step/2; x<src.m().cols; x+=column_step)
-                landmarks.append(QPointF(x,y));
-        dst = src;
-        dst.file.setPoints(landmarks);
-    }
-};
-
-BR_REGISTER(Transform, GridTransform)
-
-} // namespace br
-
-#include "keypoint.moc"
@@ -498,6 +498,30 @@ class NormalizePointsTransform : public UntrainableTransform
  
 BR_REGISTER(Transform, NormalizePointsTransform)
  
+class SetPointsInRectTransform : public UntrainableMetadataTransform
+{
+    Q_OBJECT
+
+    void projectMetadata(const File &src, File &dst) const
+    {
+        dst  = src;
+
+        QList<QRectF> rects = src.rects();
+        if (rects.size() != 1)
+            qFatal("Must have one and only one rect per template");
+        QRectF rect = rects.first();
+
+        QList<QPointF> srcPoints = src.points();
+        QList<QPointF> dstPoints;
+        foreach (const QPointF &point, srcPoints)
+            dstPoints.append(QPointF(point.x() - rect.x(), point.y() - rect.y()));
+
+        dst.setPoints(dstPoints);
+    }
+};
+
+BR_REGISTER(Transform, SetPointsInRectTransform)
+
 /*!
  * \ingroup transforms
  * \brief Normalize points to be relative to a single point
@@ -46,8 +46,6 @@ class LBPTransform : public UntrainableTransform
     uchar lut[256];
     uchar null;
  
-    friend class ColoredU2Transform;
-
     /* Returns the number of 0->1 or 1->0 transitions in i */
     static int numTransitions(int i)
     {
@@ -125,74 +123,6 @@ class LBPTransform : public UntrainableTransform
  
 BR_REGISTER(Transform, LBPTransform)
  
-/*!
- * \ingroup transforms
- * \brief For visualization of LBP patterns.
- * \author Josh Klontz \cite jklontz
- */
-class ColoredU2Transform : public UntrainableTransform
-{
-    Q_OBJECT
-
-    /* Returns the number of 1 bits in i */
-    static int bitCount(int i)
-    {
-        int count = 0;
-        for (int j=0; j<8; j++)
-            count += (i>>j)%2;
-        return count;
-    }
-
-    void project(const Template &src, Template &dst) const
-    {
-        static Mat hueLUT, saturationLUT, valueLUT;
-
-        if (!hueLUT.data) {
-            const int NUM_COLORS = 10;
-            hueLUT.create(1, 256, CV_8UC1);
-            hueLUT.setTo(0);
-
-            uchar uid = 0;
-            for (int i=0; i<256; i++) {
-                const int transitions = LBPTransform::numTransitions(i);
-                int u2;
-                if   (transitions <= 2) u2 = uid++;
-                else                    u2 = 58;
-
-                // Assign hue based on bit count
-                int color = bitCount(i);
-                if (transitions > 2) color = NUM_COLORS-1;
-                hueLUT.at<uchar>(0, u2) = 255*color/NUM_COLORS;
-            }
-
-            saturationLUT.create(1, 256, CV_8UC1);
-            saturationLUT.setTo(255);
-
-            valueLUT.create(1, 256, CV_8UC1);
-            valueLUT.setTo(255*3/4);
-        }
-
-        if (src.m().type() != CV_8UC1)
-            qFatal("Expected 8UC1 source type.");
-
-        Mat hue, saturation, value;
-        LUT(src, hueLUT, hue);
-        LUT(src, saturationLUT, saturation);
-        LUT(src, valueLUT, value);
-
-        std::vector<Mat> mv;
-        mv.push_back(hue);
-        mv.push_back(saturation);
-        mv.push_back(value);
-
-        Mat coloredU2;
-        merge(mv, coloredU2);
-        cvtColor(coloredU2, dst, CV_HSV2BGR);
-    }
-};
-
-BR_REGISTER(Transform, ColoredU2Transform)
-
 } // namespace br
  
 #include "lbp.moc"
+#include <openbr/plugins/openbr_internal.h>
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Add landmarks to the template in a grid layout
+ * \author Josh Klontz \cite jklontz
+ */
+class GridTransform : public UntrainableTransform
+{
+    Q_OBJECT
+    Q_PROPERTY(int rows READ get_rows WRITE set_rows RESET reset_rows STORED false)
+    Q_PROPERTY(int columns READ get_columns WRITE set_columns RESET reset_columns STORED false)
+    BR_PROPERTY(int, rows, 1)
+    BR_PROPERTY(int, columns, 1)
+
+    void project(const Template &src, Template &dst) const
+    {
+        QList<QPointF> landmarks;
+        const float row_step = 1.f * src.m().rows / rows;
+        const float column_step = 1.f * src.m().cols / columns;
+        for (float y=row_step/2; y<src.m().rows; y+=row_step)
+            for (float x=column_step/2; x<src.m().cols; x+=column_step)
+                landmarks.append(QPointF(x,y));
+        dst = src;
+        dst.file.setPoints(landmarks);
+    }
+};
+
+BR_REGISTER(Transform, GridTransform)
+
+} // namespace br
+
+#include "grid.moc"
+#include <openbr/plugins/openbr_internal.h>
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Convert values of key_X, key_Y, key_Width, key_Height to a rect.
+ * \author Jordan Cheney \cite JordanCheney
+ */
+class KeyToRectTransform : public UntrainableMetadataTransform
+{
+    Q_OBJECT
+    Q_PROPERTY(QString key READ get_key WRITE set_key RESET reset_key STORED false)
+    BR_PROPERTY(QString, key, "")
+
+    void projectMetadata(const File &src, File &dst) const
+    {
+        dst = src;
+
+        if (src.contains(QStringList() << key + "_X" << key + "_Y" << key + "_Width" << key + "_Height"))
+            dst.appendRect(QRectF(src.get<int>(key + "_X"),
+                                  src.get<int>(key + "_Y"),
+                                  src.get<int>(key + "_Width"),
+                                  src.get<int>(key + "_Height")));
+
+    }
+
+};
+
+BR_REGISTER(Transform, KeyToRectTransform)
+
+} // namespace br
+
+#include "keytorect.moc"
+#include <Eigen/Dense>
+
+#include <openbr/plugins/openbr_internal.h>
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Procrustes alignment of points
+ * \author Scott Klum \cite sklum
+ */
+class ProcrustesTransform : public MetadataTransform
+{
+    Q_OBJECT
+
+    Q_PROPERTY(bool warp READ get_warp WRITE set_warp RESET reset_warp STORED false)
+    BR_PROPERTY(bool, warp, true)
+
+    Eigen::MatrixXf meanShape;
+
+    void train(const TemplateList &data)
+    {
+        QList< QList<QPointF> > normalizedPoints;
+
+        // Normalize all sets of points
+        foreach (br::Template datum, data) {
+            QList<QPointF> points = datum.file.points();
+            QList<QRectF> rects = datum.file.rects();
+
+            if (points.empty() || rects.empty()) continue;
+
+            // Assume rect appended last was bounding box
+            points.append(rects.last().topLeft());
+            points.append(rects.last().topRight());
+            points.append(rects.last().bottomLeft());
+            points.append(rects.last().bottomRight());
+
+            // Center shape at origin
+            Scalar mean = cv::mean(OpenCVUtils::toPoints(points).toVector().toStdVector());
+            for (int i = 0; i < points.size(); i++) points[i] -= QPointF(mean[0],mean[1]);
+
+            // Remove scale component
+            float norm = cv::norm(OpenCVUtils::toPoints(points).toVector().toStdVector());
+            for (int i = 0; i < points.size(); i++) points[i] /= norm;
+
+            normalizedPoints.append(points);
+        }
+
+        if (normalizedPoints.empty()) qFatal("Unable to calculate normalized points");
+
+        // Determine mean shape, assuming all shapes contain the same number of points
+        meanShape = Eigen::MatrixXf(normalizedPoints[0].size(), 2);
+
+        for (int i = 0; i < normalizedPoints[0].size(); i++) {
+            double x = 0;
+            double y = 0;
+
+            for (int j = 0; j < normalizedPoints.size(); j++) {
+                x += normalizedPoints[j][i].x();
+                y += normalizedPoints[j][i].y();
+            }
+
+            x /= (double)normalizedPoints.size();
+            y /= (double)normalizedPoints.size();
+
+            meanShape(i,0) = x;
+            meanShape(i,1) = y;
+        }
+    }
+
+    void project(const Template &src, Template &dst) const
+    {
+        QList<QPointF> points = src.file.points();
+        QList<QRectF> rects = src.file.rects();
+
+        if (points.empty() || rects.empty()) {
+            dst = src;
+            if (Globals->verbose) qWarning("Procrustes alignment failed because points or rects are empty.");
+            return;
+        }
+
+        // Assume rect appended last was bounding box
+        points.append(rects.last().topLeft());
+        points.append(rects.last().topRight());
+        points.append(rects.last().bottomLeft());
+        points.append(rects.last().bottomRight());
+
+        Scalar mean = cv::mean(OpenCVUtils::toPoints(points).toVector().toStdVector());
+        for (int i = 0; i < points.size(); i++) points[i] -= QPointF(mean[0],mean[1]);
+
+        Eigen::MatrixXf srcMat(points.size(), 2);
+        float norm = cv::norm(OpenCVUtils::toPoints(points).toVector().toStdVector());
+        for (int i = 0; i < points.size(); i++) {
+            points[i] /= norm;
+            srcMat(i,0) = points[i].x();
+            srcMat(i,1) = points[i].y();
+        }
+
+        Eigen::JacobiSVD<Eigen::MatrixXf> svd(srcMat.transpose()*meanShape, Eigen::ComputeThinU | Eigen::ComputeThinV);
+        Eigen::MatrixXf R = svd.matrixU()*svd.matrixV().transpose();
+
+        dst = src;
+
+        // Store procrustes stats in the order:
+        // R(0,0), R(1,0), R(1,1), R(0,1), mean_x, mean_y, norm
+        QList<float> procrustesStats;
+        procrustesStats << R(0,0) << R(1,0) << R(1,1) << R(0,1) << mean[0] << mean[1] << norm;
+        dst.file.setList<float>("ProcrustesStats",procrustesStats);
+
+        if (warp) {
+            Eigen::MatrixXf dstMat = srcMat*R;
+            for (int i = 0; i < dstMat.rows(); i++) {
+                dst.file.appendPoint(QPointF(dstMat(i,0),dstMat(i,1)));
+            }
+        }
+    }
+
+    void store(QDataStream &stream) const
+    {
+        stream << meanShape;
+    }
+
+    void load(QDataStream &stream)
+    {
+        stream >> meanShape;
+    }
+
+};
+
+BR_REGISTER(Transform, ProcrustesTransform)
+
+} // namespace br
+
+#include "procrustes.moc"
@@ -59,48 +59,6 @@ class OpticalFlowTransform : public UntrainableMetaTransform
  
 BR_REGISTER(Transform, OpticalFlowTransform)
  
-/*!
- * \ingroup transforms
- * \brief Wraps OpenCV's BackgroundSubtractorMOG2 and puts the foreground mask in the Template metadata.
- * \author Austin Blanton \cite imaus10
- */
-class SubtractBackgroundTransform : public TimeVaryingTransform
-{
-    Q_OBJECT
-
-    // TODO: This is broken.
-    // BackgroundSubtractorMOG2 mog;
-
-public:
-    SubtractBackgroundTransform() : TimeVaryingTransform(false, false) {}
-
-private:
-    void projectUpdate(const Template &src, Template &dst)
-    {
-        dst = src;
-        Mat mask;
-        // TODO: broken
-        // mog(src, mask);
-        erode(mask, mask, Mat());
-        dilate(mask, mask, Mat());
-        dst.file.set("Mask", QVariant::fromValue(mask));
-    }
-
-    void project(const Template &src, Template &dst) const
-    {
-        (void) src; (void) dst; qFatal("no way");
-    }
-
-    void finalize(TemplateList &output)
-    {
-        (void) output;
-        // TODO: Broken
-        // mog = BackgroundSubtractorMOG2();
-    }
-};
-
-BR_REGISTER(Transform, SubtractBackgroundTransform)
-
 } // namespace br
  
 #include "motion.moc"
@@ -12,8 +12,28 @@ foreach(DIR ${BR_THIRDPARTY_PLUGINS_DIR})
   set(BR_THIRDPARTY_PLUGINS ${BR_THIRDPARTY_PLUGINS} ${PLUGINS})
 endforeach()
  
+set(BR_PLUGINS_DIR ${BR_PLUGINS_DIR} core)
+set(BR_PLUGINS_DIR ${BR_PLUGINS_DIR} io)
+set(BR_PLUGINS_DIR ${BR_PLUGINS_DIR} gui)
+set(BR_PLUGINS_DIR ${BR_PLUGINS_DIR} imgproc)
+set(BR_PLUGINS_DIR ${BR_PLUGINS_DIR} video)
+set(BR_PLUGINS_DIR ${BR_PLUGINS_DIR} cluster)
+set(BR_PLUGINS_DIR ${BR_PLUGINS_DIR} distance)
+set(BR_PLUGINS_DIR ${BR_PLUGINS_DIR} format)
+set(BR_PLUGINS_DIR ${BR_PLUGINS_DIR} representation)
+set(BR_PLUGINS_DIR ${BR_PLUGINS_DIR} detection)
+set(BR_PLUGINS_DIR ${BR_PLUGINS_DIR} classification)
+set(BR_PLUGINS_DIR ${BR_PLUGINS_DIR} metadata)
+
+
+foreach(DIR ${BR_PLUGINS_DIR})
+  file(GLOB PLUGINS plugins/${DIR}/*.cpp plugins/${DIR}/*.h)
+  set(BR_PLUGINS ${BR_PLUGINS} ${PLUGINS})
+endforeach()
+
 file(GLOB PLUGINS plugins/*.cpp plugins/*.h)
-foreach(PLUGIN ${PLUGINS} ${BR_THIRDPARTY_PLUGINS})
+set(BR_PLUGINS ${BR_PLUGINS} ${PLUGINS})
+foreach(PLUGIN ${BR_PLUGINS} ${BR_THIRDPARTY_PLUGINS})
   get_filename_component(PLUGIN_BASENAME ${PLUGIN} NAME_WE)
   get_filename_component(PLUGIN_PATH ${PLUGIN} PATH)
   set(PLUGIN_CMAKE "${PLUGIN_PATH}/${PLUGIN_BASENAME}.cmake")
@@ -287,56 +287,6 @@ class ProductQuantizationDistance : public UntrainableDistance
 BR_REGISTER(Distance, ProductQuantizationDistance)
  
 /*!
- * \ingroup distances
- * \brief Recurively computed distance in a product quantized space
- * \author Josh Klontz \cite jklontz
- */
-class RecursiveProductQuantizationDistance : public UntrainableDistance
-{
-    Q_OBJECT
-    Q_PROPERTY(float t READ get_t WRITE set_t RESET reset_t STORED false)
-    BR_PROPERTY(float, t, -std::numeric_limits<float>::max())
-
-    float compare(const Template &a, const Template &b) const
-    {
-        return compareRecursive(a, b, 0, a.size(), 0);
-    }
-
-    float compareRecursive(const QList<cv::Mat> &a, const QList<cv::Mat> &b, int i, int size, float evidence) const
-    {
-        float similarity = 0;
-
-        const int elements = a[i].total()-sizeof(quint16);
-        uchar *aData = a[i].data;
-        uchar *bData = b[i].data;
-        quint16 index = *reinterpret_cast<quint16*>(aData);
-        aData += sizeof(quint16);
-        bData += sizeof(quint16);
-
-        const float *lut = (const float*)ProductQuantizationLUTs[index].data;
-        for (int j=0; j<elements; j++) {
-            const int aj = aData[j];
-            const int bj = bData[j];
-            // http://stackoverflow.com/questions/4803180/mapping-elements-in-2d-upper-triangle-and-lower-triangle-to-linear-structure
-            const int y = max(aj, bj);
-            const int x = min(aj, bj);
-            similarity += lut[j*256*(256+1)/2 + x + (y+1)*y/2];
-        }
-
-        evidence += similarity;
-        const int subSize = (size-1)/4;
-        if ((evidence < t) || (subSize == 0)) return similarity;
-        return similarity
-               + compareRecursive(a, b, i+1+0*subSize, subSize, evidence)
-               + compareRecursive(a, b, i+1+1*subSize, subSize, evidence)
-               + compareRecursive(a, b, i+1+2*subSize, subSize, evidence)
-               + compareRecursive(a, b, i+1+3*subSize, subSize, evidence);
-    }
-};
-
-BR_REGISTER(Distance, RecursiveProductQuantizationDistance)
-
-/*!
  * \ingroup transforms
  * \brief Product quantization \cite jegou11
  * \author Josh Klontz \cite jklontz
@@ -96,38 +96,61 @@ BR_REGISTER(Transform, RndSubspaceTransform)
  
 /*!
  * \ingroup transforms
- * \brief Selects a random region.
- * \author Josh Klontz \cite jklontz
+ * \brief Selects a number of random regions from a negative image.
+ * \author Jordan Cheney \cite JordanCheney
  */
-class RndRegionTransform : public Transform
+class RndNegSampleTransform : public UntrainableMetaTransform
 {
     Q_OBJECT
-    Q_PROPERTY(float x READ get_x WRITE set_x RESET reset_x)
-    Q_PROPERTY(float y READ get_y WRITE set_y RESET reset_y)
-    Q_PROPERTY(float width READ get_width WRITE set_width RESET reset_width)
-    Q_PROPERTY(float height READ get_height WRITE set_height RESET reset_height)
-    BR_PROPERTY(float, x, -1)
-    BR_PROPERTY(float, y, -1)
-    BR_PROPERTY(float, width, -1)
-    BR_PROPERTY(float, height, -1)
+    Q_PROPERTY(int numSamples READ get_numSamples WRITE set_numSamples RESET reset_numSamples STORED false)
+    Q_PROPERTY(int width READ get_width WRITE set_width RESET reset_width STORED false)
+    Q_PROPERTY(int height READ get_height WRITE set_height RESET reset_height STORED false)
+    Q_PROPERTY(QString propName READ get_propName WRITE set_propName RESET reset_propName STORED false)
+    Q_PROPERTY(float negVal READ get_negVal WRITE set_negVal RESET reset_negVal STORED false)
+    BR_PROPERTY(int, numSamples, 1)
+    BR_PROPERTY(int, width, 24)
+    BR_PROPERTY(int, height, 24)
+    BR_PROPERTY(QString, propName, "Label")
+    BR_PROPERTY(float, negVal, 0)
  
-    void train(const TemplateList &data)
+    void project(const Template &src, Template &dst) const
     {
-        (void) data;
+        dst = src;
+
+        if (src.file.get<float>(propName, negVal+1) == negVal)
+            return;
  
         RNG &rng = theRNG();
-        width = rng.uniform(0.f, 1.f);
-        height = rng.uniform(0.f, 1.f);
-        x = rng.uniform(0.f, 1.f-width);
-        y = rng.uniform(0.f, 1.f-height);
+        for (int n = 0; n < numSamples; n++) {
+            int x = rng.uniform(0, src.m().cols - width - 1);
+            int y = rng.uniform(0, src.m().rows - height - 1);
+            dst.file.appendRect(Rect(x, y, width, height));
+        }
     }
+};
+
+BR_REGISTER(Transform, RndNegSampleTransform)
+
+/*!
+ * \ingroup transforms
+ * \brief Selects a random region.
+ * \author Josh Klontz \cite jklontz
+ */
+class RndRegionTransform : public UntrainableTransform
+{
+    Q_OBJECT
  
     void project(const Template &src, Template &dst) const
     {
+        RNG &rng = theRNG();
+        float size = rng.uniform(0.2f, 1.f);
+        float x = rng.uniform(0.f, 1.f-size);
+        float y = rng.uniform(0.f, 1.f-size);
+
         dst = src.m()(Rect(src.m().cols * x,
                            src.m().rows * y,
-                           src.m().cols * width,
-                           src.m().rows * height));
+                           src.m().cols * size,
+                           src.m().rows * size));
     }
 };
  
@@ -374,8 +374,12 @@ class RectFromPointsTransform : public UntrainableTransform
  
         QList<QPointF> points;
  
-        foreach (int index, indices) {
+        int numPoints = (indices.empty() ? src.file.points().size() : indices.size());
+        for (int idx = 0; idx < numPoints; idx++) {
+            int index = indices.empty() ? idx : indices[idx];
             if (src.file.points().size() > index) {
+                if (src.file.points()[index].x() <= 0 ||
+                    src.file.points()[index].y() <= 0)   continue;
                 if (src.file.points()[index].x() < minX) minX = src.file.points()[index].x();
                 if (src.file.points()[index].x() > maxX) maxX = src.file.points()[index].x();
                 if (src.file.points()[index].y() < minY) minY = src.file.points()[index].y();
@@ -390,8 +394,9 @@ class RectFromPointsTransform : public UntrainableTransform
         width += deltaWidth;
  
         double height = maxY-minY;
-        double deltaHeight = width/aspectRatio - height;
-        height += deltaHeight;                                       
+        //double deltaHeight = width/aspectRatio - height;
+        double deltaHeight = height*padding;
+        height += deltaHeight;
  
         const int x = std::max(0.0, minX - deltaWidth/2.0);
         const int y = std::max(0.0, minY - deltaHeight/2.0);
+#include <opencv2/objdetect/objdetect.hpp>
+
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief OpenCV HOGDescriptor wrapper
+ * \author Austin Blanton \cite imaus10
+ */
+class HoGDescriptorTransform : public UntrainableTransform
+{
+    Q_OBJECT
+
+    HOGDescriptor hog;
+
+    void project(const Template &src, Template &dst) const
+    {
+        std::vector<float> descriptorVals;
+        std::vector<Point> locations;
+        Size winStride = Size(0,0);
+        Size padding = Size(0,0);
+        foreach (const Mat &rect, src) {
+            hog.compute(rect, descriptorVals, winStride, padding, locations);
+            Mat HoGFeats(descriptorVals, true);
+            dst += HoGFeats;
+        }
+    }
+};
+
+BR_REGISTER(Transform, HoGDescriptorTransform)
+
+} // namespace br
+
+#include "hogdescriptor.moc"
+#include <opencv2/features2d/features2d.hpp>
+
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Wraps OpenCV Key Point Descriptor
+ * \author Josh Klontz \cite jklontz
+ */
+class KeyPointDescriptorTransform : public UntrainableTransform
+{
+    Q_OBJECT
+    Q_PROPERTY(QString descriptor READ get_descriptor WRITE set_descriptor RESET reset_descriptor STORED false)
+    Q_PROPERTY(int size READ get_size WRITE set_size RESET reset_size STORED false)
+    BR_PROPERTY(QString, descriptor, "SIFT")
+    BR_PROPERTY(int, size, -1)
+
+    Ptr<DescriptorExtractor> descriptorExtractor;
+
+    void init()
+    {
+        descriptorExtractor = DescriptorExtractor::create(descriptor.toStdString());
+        if (descriptorExtractor.empty())
+            qFatal("Failed to create DescriptorExtractor: %s", qPrintable(descriptor));
+    }
+
+    void project(const Template &src, Template &dst) const
+    {
+        std::vector<KeyPoint> keyPoints;
+        if (size == -1)
+            foreach (const QRectF &ROI, src.file.rects())
+                keyPoints.push_back(KeyPoint(ROI.x()+ROI.width()/2, ROI.y()+ROI.height()/2, (ROI.width() + ROI.height())/2));
+        else
+            foreach (const QPointF &landmark, src.file.points())
+                keyPoints.push_back(KeyPoint(landmark.x(), landmark.y(), size));
+        if (keyPoints.empty()) return;
+        descriptorExtractor->compute(src, keyPoints, dst);
+    }
+};
+
+BR_REGISTER(Transform, KeyPointDescriptorTransform)
+
+} // namespace br
+
+#include "keypointdescriptor.moc"
+#include <opencv2/nonfree/nonfree.hpp>
+
+#include <openbr/plugins/openbr_internal.h>
+
+using namespace cv;
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Specialize wrapper OpenCV SIFT wrapper
+ * \author Josh Klontz \cite jklontz
+ */
+class SIFTDescriptorTransform : public UntrainableTransform
+{
+    Q_OBJECT
+    Q_PROPERTY(int size READ get_size WRITE set_size RESET reset_size STORED false)
+    Q_PROPERTY(QList<int> sizes READ get_sizes WRITE set_sizes RESET reset_sizes STORED false)
+    Q_PROPERTY(int nFeatures READ get_nFeatures WRITE set_nFeatures RESET reset_nFeatures STORED false)
+    Q_PROPERTY(int nOctaveLayers READ get_nOctaveLayers WRITE set_nOctaveLayers RESET reset_nOctaveLayers STORED false)
+    Q_PROPERTY(double contrastThreshold READ get_contrastThreshold WRITE set_contrastThreshold RESET reset_contrastThreshold STORED false)
+    Q_PROPERTY(double edgeThreshold READ get_edgeThreshold WRITE set_edgeThreshold RESET reset_edgeThreshold STORED false)
+    Q_PROPERTY(double sigma READ get_sigma WRITE set_sigma RESET reset_sigma STORED false)
+    BR_PROPERTY(int, size, 1)
+    BR_PROPERTY(QList<int>, sizes, QList<int>())
+    BR_PROPERTY(int, nFeatures, 0)
+    BR_PROPERTY(int, nOctaveLayers, 3)
+    BR_PROPERTY(double, contrastThreshold, 0.04)
+    BR_PROPERTY(double, edgeThreshold, 10)
+    BR_PROPERTY(double, sigma, 1.6)
+
+    SIFT sift;
+
+    void init()
+    {
+        if (sizes.empty())
+            sizes.append(size);
+        sift = SIFT(nFeatures, nOctaveLayers, contrastThreshold, edgeThreshold, sigma);
+    }
+
+    void project(const Template &src, Template &dst) const
+    {
+        std::vector<KeyPoint> keyPoints;
+        foreach (const QPointF &val, src.file.points())
+            foreach (const int r, sizes)
+                keyPoints.push_back(KeyPoint(val.x(), val.y(), r));
+
+        Mat m;
+        sift(src, Mat(), keyPoints, m, true);
+        m.setTo(0, m<0); // SIFT returns large negative values when it goes off the edge of the image.
+        dst += m;
+    }
+};
+
+BR_REGISTER(Transform, SIFTDescriptorTransform)
+
+} // namespace br
+
+#include "siftdescriptor.moc"
-#include <stdint.h>
-#include "openbr_internal.h"
-
-using namespace cv;
-
-namespace br
-{
-
-/*!
- * \ingroup transforms
- * \brief Ordered words
- * \author Josh Klontz \cite jklontz
- */
-class SentenceTransform : public UntrainableMetaTransform
-{
-    Q_OBJECT
-
-    void project(const Template &src, Template &dst) const
-    {
-        QByteArray sentence;
-        QDataStream stream(&sentence, QIODevice::WriteOnly);
-        for (int i=0; i<src.size(); i++) {
-            const Mat &m = src[i];
-            if (!m.data) continue;
-            stream.writeRawData((const char*)&i, 4);
-            stream.writeRawData((const char*)&m.rows, 4);
-            stream.writeRawData((const char*)&m.cols, 4);
-            stream.writeRawData((const char*)m.data, 4*m.rows*m.cols);
-        }
-        dst.file = src.file;
-        dst.m() = Mat(1, sentence.size(), CV_8UC1, sentence.data()).clone();
-    }
-};
-
-BR_REGISTER(Transform, SentenceTransform)
-
-/*!
- * \ingroup distances
- * \brief Distance between sentences
- * \author Josh Klontz \cite jklontz
- */
-class SentenceSimilarityDistance : public UntrainableDistance
-{
-    Q_OBJECT
-
-    float compare(const Mat &a, const Mat &b) const
-    {
-        uchar *aBuffer = a.data;
-        uchar *bBuffer = b.data;
-        const uchar *aEnd = aBuffer + a.cols;
-        const uchar *bEnd = bBuffer + b.cols;
-
-        int32_t aWord, bWord, aRows, bRows, aColumns, bColumns;
-        float *aData, *bData;
-        aWord = aRows = aColumns = -2;
-        bWord = bRows = bColumns = -1;
-        aData = bData = NULL;
-
-        float distance = 0;
-        int comparisons = 0;
-        while (true) {
-            if (aWord < bWord) {
-                if (aBuffer == aEnd) return distance == 0 ? -std::numeric_limits<float>::max() : comparisons / distance;
-                aWord = *reinterpret_cast<int32_t*>(aBuffer);
-                aRows = *reinterpret_cast<int32_t*>(aBuffer+4);
-                aColumns = *reinterpret_cast<int32_t*>(aBuffer+8);
-                aData = reinterpret_cast<float*>(aBuffer+12);
-                aBuffer += 12 + 4*aRows*aColumns;
-            } else if (bWord < aWord) {
-                if (bBuffer == bEnd) return comparisons == 0 ? -std::numeric_limits<float>::max() : comparisons / distance;
-                bWord = *reinterpret_cast<int32_t*>(bBuffer);
-                bRows = *reinterpret_cast<int32_t*>(bBuffer+4);
-                bColumns = *reinterpret_cast<int32_t*>(bBuffer+8);
-                bData = reinterpret_cast<float*>(bBuffer+12);
-                bBuffer += 12 + 4*bRows*bColumns;
-            } else {
-                for (int i=0; i<aRows; i++)
-                    for (int j=0; j<bRows; j++)
-                        for (int k=0; k<aColumns; k++)
-                            distance += pow(aData[i*aColumns+k] - bData[j*bColumns+k], 2.f);
-                comparisons += aRows * bRows * aColumns;
-                aWord = -2;
-                bWord = -1;
-            }
-        }
-    }
-};
-
-BR_REGISTER(Distance, SentenceSimilarityDistance)
-
-} // namespace br
-
-#include "sentence.moc"
-set(BR_WITH_STASM4 ON CACHE BOOL "Build with Stasm")
+set(BR_WITH_STASM4 OFF CACHE BOOL "Build with Stasm")
  
 if(${BR_WITH_STASM4})
   find_package(Stasm4 REQUIRED)
-#include "openbr_internal.h"
+#include <openbr/plugins/openbr_internal.h>
  
 namespace br
 {
@@ -56,33 +56,6 @@ private:
  
 BR_REGISTER(Transform, AggregateFrames)
  
-/*!
- * \ingroup transforms
- * \brief Only use one frame every n frames.
- * \author Austin Blanton \cite imaus10
- *
- * For a video with m frames, DropFrames will pass on m/n frames.
- */
-class DropFrames : public UntrainableMetaTransform
-{
-    Q_OBJECT
-    Q_PROPERTY(int n READ get_n WRITE set_n RESET reset_n STORED false)
-    BR_PROPERTY(int, n, 1)
-
-    void project(const TemplateList &src, TemplateList &dst) const
-    {
-        if (src.first().file.get<int>("FrameNumber") % n != 0) return;
-        dst = src;
-    }
-
-    void project(const Template &src, Template &dst) const
-    {
-        (void) src; (void) dst; qFatal("shouldn't be here");
-    }
-};
-
-BR_REGISTER(Transform, DropFrames)
-
 } // namespace br
  
-#include "frames.moc"
+#include "aggregate.moc"
+#include <openbr/plugins/openbr_internal.h>
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \brief Only use one frame every n frames.
+ * \author Austin Blanton \cite imaus10
+ *
+ * For a video with m frames, DropFrames will pass on m/n frames.
+ */
+class DropFrames : public UntrainableMetaTransform
+{
+    Q_OBJECT
+    Q_PROPERTY(int n READ get_n WRITE set_n RESET reset_n STORED false)
+    BR_PROPERTY(int, n, 1)
+
+    void project(const TemplateList &src, TemplateList &dst) const
+    {
+        if (src.first().file.get<int>("FrameNumber") % n != 0) return;
+        dst = src;
+    }
+
+    void project(const Template &src, Template &dst) const
+    {
+        (void) src; (void) dst; qFatal("shouldn't be here");
+    }
+};
+
+BR_REGISTER(Transform, DropFrames)
+
+} // namespace br
+
+#include "drop.moc"