fixed gpu morphology: now kernel in gpu is passed to npp functions.

warnings in cxcore
added graphcut wrapper

modules/gpu/include/opencv2/gpu/gpu.hpp

@@ -533,6 +533,12 @@ namespace cv
         //! applies an advanced morphological operation to the image
         CV_EXPORTS void morphologyEx( const GpuMat& src, GpuMat& dst, int op, const Mat& kernel, Point anchor, int iterations);
 
+
+        //////////////////////////////// Image Labeling ////////////////////////////////
+
+        //!performs labeling via graph cuts
+        CV_EXPORTS void graphcut(GpuMat& terminals, GpuMat& leftTransp, GpuMat& rightTransp, GpuMat& top, GpuMat& bottom, GpuMat& labels, GpuMat& buf);
+
         //////////////////////////////// StereoBM_GPU ////////////////////////////////
 
         class CV_EXPORTS StereoBM_GPU

modules/gpu/src/filtering_npp.cpp

@@ -62,11 +62,14 @@ namespace
     void morphoogy_caller(npp_morf_func func, const GpuMat& src, GpuMat& dst, const Mat& kernel, Point anchor, int iterations)
     {
         CV_Assert(src.type() == CV_8U || src.type() == CV_8UC4);        
-        CV_Assert(kernel.isContinuous() && kernel.type() == CV_8U && (kernel.cols & 1) != 0 && (kernel.rows & 1) != 0);
+        CV_Assert(kernel.type() == CV_8U && (kernel.cols & 1) != 0 && (kernel.rows & 1) != 0);
 
         // in NPP for Cuda 3.1 only such anchor is supported.
         CV_Assert(anchor.x == kernel.cols/2 && anchor.y == kernel.rows/2);
-        
+
+        const Mat& cont_krnl = (kernel.isContinuous() ? kernel : kernel.clone()).reshape(1, 1);
+        GpuMat gpu_krnl(cont_krnl);
+                
         NppiSize sz;
         sz.width = src.cols;
         sz.height = src.rows;
@@ -82,7 +85,7 @@ namespace
         dst.create(src.size(), src.type());
 
         for(int i = 0; i < iterations; ++i)
-            nppSafeCall( func(src.ptr<Npp8u>(), src.step, dst.ptr<Npp8u>(), dst.step, sz, kernel.ptr<Npp8u>(), mask_sz, anc) );
+            nppSafeCall( func(src.ptr<Npp8u>(), src.step, dst.ptr<Npp8u>(), dst.step, sz, gpu_krnl.ptr<Npp8u>(), mask_sz, anc) );
     }
 }
 

modules/gpu/src/graphcuts.cpp

@@ -0,0 +1,83 @@
+/*M///////////////////////////////////////////////////////////////////////////////////////
+//
+//  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+//
+//  By downloading, copying, installing or using the software you agree to this license.
+//  If you do not agree to this license, do not download, install,
+//  copy or use the software.
+//
+//
+//                           License Agreement
+//                For Open Source Computer Vision Library
+//
+// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
+// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
+// Third party copyrights are property of their respective owners.
+//
+// Redistribution and use in source and binary forms, with or without modification,
+// are permitted provided that the following conditions are met:
+//
+//   * Redistribution's of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//
+//   * Redistribution's in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other GpuMaterials provided with the distribution.
+//
+//   * The name of the copyright holders may not be used to endorse or promote products
+//     derived from this software without specific prior written permission.
+//
+// This software is provided by the copyright holders and contributors "as is" and
+// any express or bpied warranties, including, but not limited to, the bpied
+// warranties of merchantability and fitness for a particular purpose are disclaimed.
+// In no event shall the Intel Corporation or contributors be liable for any direct,
+// indirect, incidental, special, exemplary, or consequential damages
+// (including, but not limited to, procurement of substitute goods or services;
+// loss of use, data, or profits; or business interruption) however caused
+// and on any theory of liability, whether in contract, strict liability,
+// or tort (including negligence or otherwise) arising in any way out of
+// the use of this software, even if advised of the possibility of such damage.
+//
+//M*/
+
+#include "precomp.hpp"
+
+#if !defined (HAVE_CUDA)
+
+void cv::gpu::graphcut(GpuMat&, GpuMat&, GpuMat&, GpuMat&, GpuMat&, GpuMat&, GpuMat&) { throw_nogpu(); }
+
+#else /* !defined (HAVE_CUDA) */
+
+void cv::gpu::graphcut(GpuMat& terminals, GpuMat& leftTransp, GpuMat& rightTransp, GpuMat& top, GpuMat& bottom, GpuMat& labels, GpuMat& buf)
+{
+    CV_Assert(leftTransp.type() == CV_32S && rightTransp.type() == CV_32S);
+    CV_Assert(terminals.type() == CV_32S && bottom.type() == CV_32S && top.type() == CV_32S);
+    CV_Assert(terminals.size() == leftTransp.size());
+    CV_Assert(terminals.size() == rightTransp.size());
+    CV_Assert(terminals.size() == top.size() && terminals.size() == bottom.size());    
+    CV_Assert(top.step == bottom.step && top.step == terminals.step && rightTransp.step == leftTransp.step);
+        
+    labels.create(terminals.size(), CV_8U);
+
+    NppiSize sznpp;
+    sznpp.width = terminals.cols;
+    sznpp.height = terminals.rows;
+
+    int bufsz;
+    nppSafeCall( nppiGraphcutGetSize(sznpp, &bufsz) );
+
+    if ((size_t)bufsz > buf.cols * buf.rows * buf.elemSize())
+        buf.create(1, bufsz, CV_8U);
+
+    nppSafeCall( nppiGraphcut_32s8u(terminals.ptr<Npp32s>(), leftTransp.ptr<Npp32s>(), rightTransp.ptr<Npp32s>(), top.ptr<Npp32s>(), bottom.ptr<Npp32s>(), 
+        terminals.step, leftTransp.step, sznpp, labels.ptr<Npp8u>(), labels.step, buf.ptr<Npp8u>()) );
+}
+
+
+#endif /* !defined (HAVE_CUDA) */
+
+
+
+
+
+