morphology

modules/imgproc/src/opencl/morph.cl

+//                           License Agreement
+//                For Open Source Computer Vision Library
+//
+// Copyright (C) 2010-2012, Institute Of Software Chinese Academy Of Science, all rights reserved.
+// Copyright (C) 2010-2012, Advanced Micro Devices, Inc., all rights reserved.
+// Third party copyrights are property of their respective owners.
+//
+// @Authors
+//    Niko Li, newlife20080214@gmail.com
+//    Zero Lin, zero.lin@amd.com
+//    Yao Wang, bitwangyaoyao@gmail.com
+// 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 materials 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 implied warranties, including, but not limited to, the implied
+// 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.
+//
+//
+
+#ifdef DOUBLE_SUPPORT
+#ifdef cl_amd_fp64
+#pragma OPENCL EXTENSION cl_amd_fp64:enable
+#elif defined (cl_khr_fp64)
+#pragma OPENCL EXTENSION cl_khr_fp64:enable
+#endif
+#endif
+
+#ifdef ERODE
+#define MORPH_OP(A,B) min((A),(B))
+#endif
+#ifdef DILATE
+#define MORPH_OP(A,B) max((A),(B))
+#endif
+//BORDER_CONSTANT:      iiiiii|abcdefgh|iiiiiii
+#define ELEM(i,l_edge,r_edge,elem1,elem2) (i)<(l_edge) | (i) >= (r_edge) ? (elem1) : (elem2)
+
+__kernel void morph(__global const GENTYPE * restrict src,
+                    __global GENTYPE *dst,
+                    int src_offset_x, int src_offset_y,
+                    int cols, int rows,
+                    int src_step_in_pixel, int dst_step_in_pixel,
+                    __constant uchar * mat_kernel,
+                    int src_whole_cols, int src_whole_rows,
+                    int dst_offset_in_pixel)
+{
+    int l_x = get_local_id(0);
+    int l_y = get_local_id(1);
+    int x = get_group_id(0)*LSIZE0;
+    int y = get_group_id(1)*LSIZE1;
+    int start_x = x+src_offset_x-RADIUSX;
+    int end_x = x + src_offset_x+LSIZE0+RADIUSX;
+    int width = end_x -(x+src_offset_x-RADIUSX)+1;
+    int start_y = y+src_offset_y-RADIUSY;
+    int point1 = mad24(l_y,LSIZE0,l_x);
+    int point2 = point1 + LSIZE0*LSIZE1;
+    int tl_x = point1 % width;
+    int tl_y = point1 / width;
+    int tl_x2 = point2 % width;
+    int tl_y2 = point2 / width;
+    int cur_x = start_x + tl_x;
+    int cur_y = start_y + tl_y;
+    int cur_x2 = start_x + tl_x2;
+    int cur_y2 = start_y + tl_y2;
+    int start_addr = mad24(cur_y,src_step_in_pixel,cur_x);
+    int start_addr2 = mad24(cur_y2,src_step_in_pixel,cur_x2);
+    GENTYPE temp0,temp1;
+    __local GENTYPE LDS_DAT[2*LSIZE1*LSIZE0];
+
+    int end_addr = mad24(src_whole_rows - 1,src_step_in_pixel,src_whole_cols);
+    //read pixels from src
+    start_addr = ((start_addr < end_addr) && (start_addr > 0)) ? start_addr : 0;
+    start_addr2 = ((start_addr2 < end_addr) && (start_addr2 > 0)) ? start_addr2 : 0;
+    temp0 = src[start_addr];
+    temp1 = src[start_addr2];
+    //judge if read out of boundary
+    temp0= ELEM(cur_x,0,src_whole_cols,(GENTYPE)VAL,temp0);
+    temp0= ELEM(cur_y,0,src_whole_rows,(GENTYPE)VAL,temp0);
+
+    temp1= ELEM(cur_x2,0,src_whole_cols,(GENTYPE)VAL,temp1);
+    temp1= ELEM(cur_y2,0,src_whole_rows,(GENTYPE)VAL,temp1);
+
+    LDS_DAT[point1] = temp0;
+    LDS_DAT[point2] = temp1;
+    barrier(CLK_LOCAL_MEM_FENCE);
+    GENTYPE res = (GENTYPE)VAL;
+    for(int i=0; i<2*RADIUSY+1; i++)
+        for(int j=0; j<2*RADIUSX+1; j++)
+        {
+            res =
+#ifndef RECTKERNEL
+                mat_kernel[i*(2*RADIUSX+1)+j] ?
+#endif
+                MORPH_OP(res,LDS_DAT[mad24(l_y+i,width,l_x+j)])
+#ifndef RECTKERNEL
+                :res
+#endif
+                ;
+        }
+    int gidx = get_global_id(0);
+    int gidy = get_global_id(1);
+    int out_addr = mad24(gidy,dst_step_in_pixel,gidx+dst_offset_in_pixel);
+    if(gidx<cols && gidy<rows)
+    {
+        dst[out_addr] = res;
+    }
+
+}

modules/imgproc/test/ocl/test_filters.cpp

@@ -229,6 +229,75 @@ OCL_TEST_P(GaussianBlurTest, Mat)
     }
 }
 
+/////////////////////////////////////////////////////////////////////////////////////////////////
+// Erode
+
+typedef FilterTestBase Erode;
+
+OCL_TEST_P(Erode, Mat)
+{
+    Size kernelSize(ksize, ksize);
+    int iterations = (int)param;
+
+    for (int j = 0; j < test_loop_times; j++)
+    {
+        random_roi();
+        Mat kernel = randomMat(kernelSize, CV_8UC1, 0, 3);
+
+        OCL_OFF(cv::erode(src_roi, dst_roi, kernel, Point(-1,-1), iterations) );
+        OCL_ON(cv::erode(usrc_roi, udst_roi, kernel, Point(-1,-1), iterations) );
+
+        Near();
+    }
+}
+
+/////////////////////////////////////////////////////////////////////////////////////////////////
+// Dilate
+
+typedef FilterTestBase Dilate;
+
+OCL_TEST_P(Dilate, Mat)
+{
+    Size kernelSize(ksize, ksize);
+    int iterations = (int)param;
+
+    for (int j = 0; j < test_loop_times; j++)
+    {
+        random_roi();
+        Mat kernel = randomMat(kernelSize, CV_8UC1, 0, 3);
+
+        OCL_OFF(cv::dilate(src_roi, dst_roi, kernel, Point(-1,-1), iterations) );
+        OCL_ON(cv::dilate(usrc_roi, udst_roi, kernel, Point(-1,-1), iterations) );
+
+        Near();
+    }
+}
+
+/////////////////////////////////////////////////////////////////////////////////////////////////
+// MorphologyEx
+
+typedef FilterTestBase MorphologyEx;
+
+OCL_TEST_P(MorphologyEx, Mat)
+{
+    Size kernelSize(ksize, ksize);
+    int iterations = (int)param;
+    int op = size.height;
+
+    for (int j = 0; j < test_loop_times; j++)
+    {
+        random_roi();
+        Mat kernel = randomMat(kernelSize, CV_8UC1, 0, 3);
+
+        OCL_OFF(cv::morphologyEx(src_roi, dst_roi, op, kernel, Point(-1,-1), iterations) );
+        OCL_ON(cv::morphologyEx(usrc_roi, udst_roi, op, kernel, Point(-1,-1), iterations) );
+
+        Near();
+    }
+}
+
+
+
 //////////////////////////////////////////////////////////////////////////////////////////////////////////////
 
 #define FILTER_BORDER_SET_NO_ISOLATED \
@@ -285,6 +354,31 @@ OCL_INSTANTIATE_TEST_CASE_P(Filter, GaussianBlurTest, Combine(
                             Values(0.0), // not used
                             Bool()));
 
+OCL_INSTANTIATE_TEST_CASE_P(Filter, Erode, Combine(
+                            Values(CV_8UC1, CV_8UC4, CV_32FC1, CV_32FC4, CV_64FC1, CV_64FC4),
+                            Values(3, 5, 7),
+                            Values(Size(0,0)),//not used
+                            Values((BorderType)BORDER_CONSTANT),//not used
+                            Values(1.0, 2.0, 3.0),
+                            Bool() ) );
+
+OCL_INSTANTIATE_TEST_CASE_P(Filter, Dilate, Combine(
+                            Values(CV_8UC1, CV_8UC4, CV_32FC1, CV_32FC4, CV_64FC1, CV_64FC4),
+                            Values(3, 5, 7),
+                            Values(Size(0,0)),//not used
+                            Values((BorderType)BORDER_CONSTANT),//not used
+                            Values(1.0, 2.0, 3.0),
+                            Bool() ) );
+
+OCL_INSTANTIATE_TEST_CASE_P(Filter, MorphologyEx, Combine(
+                            Values(CV_8UC1, CV_8UC4, CV_32FC1, CV_32FC4, CV_64FC1, CV_64FC4),
+                            Values(3, 5, 7),
+                            Values(Size(0,0), Size(0,1), Size(0,2), Size(0,3), Size(0,4), Size(0,5),Size(0,6)),//uses as generator of operations
+                            Values((BorderType)BORDER_CONSTANT),//not used
+                            Values(1.0, 2.0, 3.0),
+                            Bool() ) );
+
+
 } } // namespace cvtest::ocl
 
 #endif // HAVE_OPENCL