regions.cpp
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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 Subdivide matrix into rectangular subregions.
* \author Josh Klontz \cite jklontz
*/
class RectRegionsTransform : 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)
Q_PROPERTY(int widthStep READ get_widthStep WRITE set_widthStep RESET reset_widthStep STORED false)
Q_PROPERTY(int heightStep READ get_heightStep WRITE set_heightStep RESET reset_heightStep STORED false)
BR_PROPERTY(int, width, 8)
BR_PROPERTY(int, height, 8)
BR_PROPERTY(int, widthStep, -1)
BR_PROPERTY(int, heightStep, -1)
void project(const Template &src, Template &dst) const
{
const int widthStep = this->widthStep == -1 ? width : this->widthStep;
const int heightStep = this->heightStep == -1 ? height : this->heightStep;
const Mat &m = src;
const int xMax = m.cols - width;
const int yMax = m.rows - height;
for (int x=0; x <= xMax; x += widthStep)
for (int y=0; y <= yMax; y += heightStep)
dst += m(Rect(x, y, width, height));
}
};
BR_REGISTER(Transform, RectRegionsTransform)
/*!
* \ingroup transforms
* \brief Turns each row into its own matrix.
* \author Josh Klontz \cite jklontz
*/
class ByRowTransform : public UntrainableTransform
{
Q_OBJECT
void project(const Template &src, Template &dst) const
{
for (int i=0; i<src.m().rows; i++)
dst += src.m().row(i);
}
};
BR_REGISTER(Transform, ByRowTransform)
/*!
* \ingroup transforms
* \brief Concatenates all input matrices into a single matrix.
* \author Josh Klontz \cite jklontz
*/
class CatTransform : public UntrainableMetaTransform
{
Q_OBJECT
Q_PROPERTY(int partitions READ get_partitions WRITE set_partitions RESET reset_partitions)
BR_PROPERTY(int, partitions, 1)
void project(const Template &src, Template &dst) const
{
dst.file = src.file;
if (src.size() % partitions != 0)
qFatal("%d partitions does not evenly divide %d matrices.", partitions, src.size());
QVector<int> sizes(partitions, 0);
for (int i=0; i<src.size(); i++)
sizes[i%partitions] += src[i].total();
foreach (int size, sizes)
dst.append(Mat(1, size, src.m().type()));
QVector<int> offsets(partitions, 0);
for (int i=0; i<src.size(); i++) {
size_t size = src[i].total() * src[i].elemSize();
int j = i % partitions;
memcpy(&dst[j].data[offsets[j]], src[i].ptr(), size);
offsets[j] += size;
}
}
};
BR_REGISTER(Transform, CatTransform)
/*!
* \ingroup transforms
* \brief Concatenates all input matrices by row into a single matrix.
* All matricies must have the same row counts.
* \author Josh Klontz \cite jklontz
*/
class CatRowsTransform : public UntrainableMetaTransform
{
Q_OBJECT
void project(const Template &src, Template &dst) const
{
dst = Template(src.file, OpenCVUtils::toMatByRow(src));
}
};
BR_REGISTER(Transform, CatRowsTransform)
/*!
* \ingroup transforms
* \brief Reshape the each matrix to the specified number of rows.
* \author Josh Klontz \cite jklontz
*/
class ReshapeTransform : public UntrainableTransform
{
Q_OBJECT
Q_PROPERTY(int rows READ get_rows WRITE set_rows RESET reset_rows STORED false)
BR_PROPERTY(int, rows, 1)
void project(const Template &src, Template &dst) const
{
dst = src.m().reshape(src.m().channels(), rows);
}
};
BR_REGISTER(Transform, ReshapeTransform)
/*!
* \ingroup transforms
* \brief Wraps OpenCV merge
* \author Josh Klontz \cite jklontz
*/
class MergeTransform : public UntrainableMetaTransform
{
Q_OBJECT
void project(const Template &src, Template &dst) const
{
dst.file = src.file;
std::vector<Mat> mv;
foreach (const Mat &m, src)
mv.push_back(m);
merge(mv, dst);
}
};
BR_REGISTER(Transform, MergeTransform)
/*!
* \ingroup transforms
* \brief Duplicates the template data.
* \author Josh Klontz \cite jklontz
*/
class DupTransform : 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 Template &src, Template &dst) const
{
for (int i=0; i<n; i++)
dst.merge(src);
}
};
BR_REGISTER(Transform, DupTransform)
/*!
* \ingroup transforms
* \brief Create matrix from landmarks.
* \author Scott Klum \cite sklum
* \todo Padding should be a percent of total image size
*/
class RectFromPointsTransform : public UntrainableTransform
{
Q_OBJECT
Q_PROPERTY(QList<int> indices READ get_indices WRITE set_indices RESET reset_indices STORED false)
Q_PROPERTY(double padding READ get_padding WRITE set_padding RESET reset_padding STORED false)
Q_PROPERTY(double aspectRatio READ get_aspectRatio WRITE set_aspectRatio RESET reset_aspectRatio STORED false)
Q_PROPERTY(bool crop READ get_crop WRITE set_crop RESET reset_crop STORED false)
BR_PROPERTY(QList<int>, indices, QList<int>())
BR_PROPERTY(double, padding, 0)
BR_PROPERTY(double, aspectRatio, 1.0)
BR_PROPERTY(bool, crop, true)
void project(const Template &src, Template &dst) const
{
if (src.file.points().isEmpty()) {
qWarning("No landmarks");
dst = src;
return;
}
int minX, minY;
minX = minY = std::numeric_limits<int>::max();
int maxX, maxY;
maxX = maxY = -std::numeric_limits<int>::max();
QList<QPointF> points;
foreach(int index, indices) {
if (src.file.points().size() > index) {
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();
if (src.file.points()[index].y() > maxY) maxY = src.file.points()[index].y();
points.append(src.file.points()[index]);
}
}
double width = maxX-minX;
double deltaWidth = width*padding;
width += deltaWidth;
double height = maxY-minY;
double deltaHeight = width/aspectRatio - height;
height += deltaHeight;
dst.file.setPoints(points);
if (crop) dst.m() = src.m()(Rect(std::max(0.0, minX - deltaWidth/2.0), std::max(0.0, minY - deltaHeight/2.0), std::min((double)src.m().cols, width), std::min((double)src.m().rows, height)));
else {
dst.file.appendRect(QRectF(std::max(0.0, minX - deltaWidth/2.0), std::max(0.0, minY - deltaHeight/2.0), std::min((double)src.m().cols, width), std::min((double)src.m().rows, height)));
dst.m() = src.m();
}
}
};
BR_REGISTER(Transform, RectFromPointsTransform)
} // namespace br
#include "regions.moc"