diff --git a/openbr/plugins/distance/halfbyteL1.cpp b/openbr/plugins/distance/halfbyteL1.cpp
deleted file mode 100644
index d70c0cf..0000000
--- a/openbr/plugins/distance/halfbyteL1.cpp
+++ /dev/null
@@ -1,45 +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>
-#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 "distance/halfbyteL1.moc"
diff --git a/openbr/plugins/imgproc/pack.cpp b/openbr/plugins/imgproc/pack.cpp
deleted file mode 100644
index 9954af3..0000000
--- a/openbr/plugins/imgproc/pack.cpp
+++ /dev/null
@@ -1,52 +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 Compress two uchar into one uchar.
- * \author Josh Klontz \cite jklontz
- */
-class PackTransform : public UntrainableTransform
-{
-    Q_OBJECT
-
-    void project(const Template &src, Template &dst) const
-    {
-        const Mat &m = src;
-        if ((m.cols % 2 != 0) || (m.type() != CV_8UC1))
-            qFatal("Invalid template format.");
-
-        Mat n(m.rows, m.cols/2, CV_8UC1);
-        for (int i=0; i<m.rows; i++)
-            for (int j=0; j<m.cols/2; j++)
-                n.at<uchar>(i,j) = ((m.at<uchar>(i,2*j+0) >> 4) << 4) +
-                                   ((m.at<uchar>(i,2*j+1) >> 4) << 0);
-        dst = n;
-    }
-};
-
-BR_REGISTER(Transform, PackTransform)
-
-} // namespace br
-
-#include "imgproc/pack.moc"