diff --git a/openbr/plugins/imgproc/gradient.cpp b/openbr/plugins/imgproc/gradient.cpp
deleted file mode 100644
index 1f38f89..0000000
--- a/openbr/plugins/imgproc/gradient.cpp
+++ /dev/null
@@ -1,66 +0,0 @@
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
- * 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/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, FILTER_SCHARR);
-        Sobel(src, dy, CV_32F, 0, 1, FILTER_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 "imgproc/gradient.moc"
diff --git a/openbr/plugins/imgproc/gradientmask.cpp b/openbr/plugins/imgproc/gradientmask.cpp
deleted file mode 100644
index 5f7064f..0000000
--- a/openbr/plugins/imgproc/gradientmask.cpp
+++ /dev/null
@@ -1,57 +0,0 @@
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
- * 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 <openbr/plugins/openbr_internal.h>
-
-using namespace cv;
-
-namespace br
-{
-
-/*!
- * \ingroup transforms
- * \brief Masks image according to pixel change.
- * \author Josh Klontz \cite jklontz
- */
-class GradientMaskTransform : public UntrainableTransform
-{
-    Q_OBJECT
-    Q_PROPERTY(int delta READ get_delta WRITE set_delta RESET reset_delta STORED false)
-    BR_PROPERTY(int, delta, 1)
-
-    void project(const Template &src, Template &dst) const
-    {
-        const Mat &m = src.m();
-        if (m.type() != CV_8UC1) qFatal("Requires 8UC1 matrices.");
-        Mat n = Mat(m.rows, m.cols, CV_8UC1);
-        n.setTo(255);
-        for (int i=0; i<m.rows; i++) {
-            for (int j=0; j<m.cols; j++) {
-                if ((i>0)        && (abs(m.at<quint8>(i-1,j)-m.at<quint8>(i,j)) > delta)) { n.at<quint8>(i,j) = 0; continue; }
-                if ((j+1<m.cols) && (abs(m.at<quint8>(i,j+1)-m.at<quint8>(i,j)) > delta)) { n.at<quint8>(i,j) = 0; continue; }
-                if ((i+1<m.rows) && (abs(m.at<quint8>(i+1,j)-m.at<quint8>(i,j)) > delta)) { n.at<quint8>(i,j) = 0; continue; }
-                if ((j>0)        && (abs(m.at<quint8>(i,j-1)-m.at<quint8>(i,j)) > delta)) { n.at<quint8>(i,j) = 0; continue; }
-            }
-        }
-        dst = n;
-    }
-};
-
-BR_REGISTER(Transform, GradientMaskTransform)
-
-} // namespace br
-
-#include "imgproc/gradientmask.moc"