diff --git a/modules/ocl/src/color.cpp b/modules/ocl/src/color.cpp
index 5bc19e11c..ab613e051 100644
--- a/modules/ocl/src/color.cpp
+++ b/modules/ocl/src/color.cpp
@@ -16,6 +16,7 @@
//
// @Authors
// Wang Weiyan, wangweiyanster@gmail.com
+// Peng Xiao, pengxiao@multicorewareinc.com
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
@@ -70,79 +71,218 @@ void cv::ocl::cvtColor(const oclMat &, oclMat &, int, int, const Stream &)
namespace cv
{
- namespace ocl
- {
- extern const char *cvt_color;
- }
+namespace ocl
+{
+extern const char *cvt_color;
+}
}
namespace
{
- void RGB2Gray_caller(const oclMat &src, oclMat &dst, int bidx)
- {
- vector<pair<size_t , const void *> > args;
- int channels = src.oclchannels();
- char build_options[50];
- //printf("depth:%d,channels:%d,bidx:%d\n",src.depth(),src.oclchannels(),bidx);
- sprintf(build_options, "-D DEPTH_%d", src.depth());
- args.push_back( make_pair( sizeof(cl_int) , (void *)&src.cols));
- args.push_back( make_pair( sizeof(cl_int) , (void *)&src.rows));
- args.push_back( make_pair( sizeof(cl_int) , (void *)&src.step));
- args.push_back( make_pair( sizeof(cl_int) , (void *)&dst.step));
- args.push_back( make_pair( sizeof(cl_int) , (void *)&channels));
- args.push_back( make_pair( sizeof(cl_int) , (void *)&bidx));
- args.push_back( make_pair( sizeof(cl_mem) , (void *)&src.data));
- args.push_back( make_pair( sizeof(cl_mem) , (void *)&dst.data));
- size_t gt[3] = {src.cols, src.rows, 1}, lt[3] = {16, 16, 1};
- openCLExecuteKernel(src.clCxt, &cvt_color, "RGB2Gray", gt, lt, args, -1, -1, build_options);
- }
- void cvtColor_caller(const oclMat &src, oclMat &dst, int code, int /*dcn*/)
- {
- Size sz = src.size();
- int scn = src.oclchannels(), depth = src.depth(), bidx;
+void RGB2Gray_caller(const oclMat &src, oclMat &dst, int bidx)
+{
+ vector<pair<size_t , const void *> > args;
+ int channels = src.oclchannels();
+ char build_options[50];
+ sprintf(build_options, "-D DEPTH_%d", src.depth());
+ //printf("depth:%d,channels:%d,bidx:%d\n",src.depth(),src.oclchannels(),bidx);
+ args.push_back( make_pair( sizeof(cl_int) , (void *)&src.cols));
+ args.push_back( make_pair( sizeof(cl_int) , (void *)&src.rows));
+ args.push_back( make_pair( sizeof(cl_int) , (void *)&src.step));
+ args.push_back( make_pair( sizeof(cl_int) , (void *)&dst.step));
+ args.push_back( make_pair( sizeof(cl_int) , (void *)&channels));
+ args.push_back( make_pair( sizeof(cl_int) , (void *)&bidx));
+ args.push_back( make_pair( sizeof(cl_mem) , (void *)&src.data));
+ args.push_back( make_pair( sizeof(cl_mem) , (void *)&dst.data));
+ size_t gt[3] = {src.cols, src.rows, 1}, lt[3] = {16, 16, 1};
+ openCLExecuteKernel(src.clCxt, &cvt_color, "RGB2Gray", gt, lt, args, -1, -1, build_options);
+}
+void Gray2RGB_caller(const oclMat &src, oclMat &dst)
+{
+ vector<pair<size_t , const void *> > args;
+ char build_options[50];
+ sprintf(build_options, "-D DEPTH_%d", src.depth());
+ //printf("depth:%d,channels:%d,bidx:%d\n",src.depth(),src.oclchannels(),bidx);
+ args.push_back( make_pair( sizeof(cl_int) , (void *)&src.cols));
+ args.push_back( make_pair( sizeof(cl_int) , (void *)&src.rows));
+ args.push_back( make_pair( sizeof(cl_int) , (void *)&src.step));
+ args.push_back( make_pair( sizeof(cl_int) , (void *)&dst.step));
+ args.push_back( make_pair( sizeof(cl_mem) , (void *)&src.data));
+ args.push_back( make_pair( sizeof(cl_mem) , (void *)&dst.data));
+ size_t gt[3] = {src.cols, src.rows, 1}, lt[3] = {16, 16, 1};
+ openCLExecuteKernel(src.clCxt, &cvt_color, "Gray2RGB", gt, lt, args, -1, -1, build_options);
+}
+void RGB2YUV_caller(const oclMat &src, oclMat &dst, int bidx)
+{
+ vector<pair<size_t , const void *> > args;
+ int channels = src.oclchannels();
+ char build_options[50];
+ sprintf(build_options, "-D DEPTH_%d", src.depth());
+ //printf("depth:%d,channels:%d,bidx:%d\n",src.depth(),src.oclchannels(),bidx);
+ args.push_back( make_pair( sizeof(cl_int) , (void *)&src.cols));
+ args.push_back( make_pair( sizeof(cl_int) , (void *)&src.rows));
+ args.push_back( make_pair( sizeof(cl_int) , (void *)&src.step));
+ args.push_back( make_pair( sizeof(cl_int) , (void *)&dst.step));
+ args.push_back( make_pair( sizeof(cl_int) , (void *)&channels));
+ args.push_back( make_pair( sizeof(cl_int) , (void *)&bidx));
+ args.push_back( make_pair( sizeof(cl_mem) , (void *)&src.data));
+ args.push_back( make_pair( sizeof(cl_mem) , (void *)&dst.data));
+ size_t gt[3] = {src.cols, src.rows, 1}, lt[3] = {16, 16, 1};
+ openCLExecuteKernel(src.clCxt, &cvt_color, "RGB2YUV", gt, lt, args, -1, -1, build_options);
+}
+void YUV2RGB_caller(const oclMat &src, oclMat &dst, int bidx)
+{
+ vector<pair<size_t , const void *> > args;
+ int channels = src.oclchannels();
+ char build_options[50];
+ sprintf(build_options, "-D DEPTH_%d", src.depth());
+ //printf("depth:%d,channels:%d,bidx:%d\n",src.depth(),src.oclchannels(),bidx);
+ args.push_back( make_pair( sizeof(cl_int) , (void *)&src.cols));
+ args.push_back( make_pair( sizeof(cl_int) , (void *)&src.rows));
+ args.push_back( make_pair( sizeof(cl_int) , (void *)&src.step));
+ args.push_back( make_pair( sizeof(cl_int) , (void *)&dst.step));
+ args.push_back( make_pair( sizeof(cl_int) , (void *)&channels));
+ args.push_back( make_pair( sizeof(cl_int) , (void *)&bidx));
+ args.push_back( make_pair( sizeof(cl_mem) , (void *)&src.data));
+ args.push_back( make_pair( sizeof(cl_mem) , (void *)&dst.data));
+ size_t gt[3] = {src.cols, src.rows, 1}, lt[3] = {16, 16, 1};
+ openCLExecuteKernel(src.clCxt, &cvt_color, "YUV2RGB", gt, lt, args, -1, -1, build_options);
+}
+void YUV2RGB_NV12_caller(const oclMat &src, oclMat &dst, int bidx)
+{
+ vector<pair<size_t , const void *> > args;
+ char build_options[50];
+ sprintf(build_options, "-D DEPTH_%d", src.depth());
+ //printf("depth:%d,channels:%d,bidx:%d\n",src.depth(),src.oclchannels(),bidx);
+ args.push_back( make_pair( sizeof(cl_int) , (void *)&src.cols));
+ args.push_back( make_pair( sizeof(cl_int) , (void *)&src.rows));
+ args.push_back( make_pair( sizeof(cl_int) , (void *)&src.step));
+ args.push_back( make_pair( sizeof(cl_int) , (void *)&dst.step));
+ args.push_back( make_pair( sizeof(cl_int) , (void *)&bidx));
+ args.push_back( make_pair( sizeof(cl_int) , (void *)&dst.cols));
+ args.push_back( make_pair( sizeof(cl_int) , (void *)&dst.rows));
+ args.push_back( make_pair( sizeof(cl_mem) , (void *)&src.data));
+ args.push_back( make_pair( sizeof(cl_mem) , (void *)&dst.data));
+ size_t gt[3] = {dst.cols / 2, dst.rows / 2, 1}, lt[3] = {16, 16, 1};
+ openCLExecuteKernel(src.clCxt, &cvt_color, "YUV2RGBA_NV12", gt, lt, args, -1, -1, build_options);
+}
+void RGB2YCrCb_caller(const oclMat &src, oclMat &dst, int bidx)
+{
+ vector<pair<size_t , const void *> > args;
+ int channels = src.oclchannels();
+ char build_options[50];
+ sprintf(build_options, "-D DEPTH_%d", src.depth());
+ //printf("depth:%d,channels:%d,bidx:%d\n",src.depth(),src.oclchannels(),bidx);
+ args.push_back( make_pair( sizeof(cl_int) , (void *)&src.cols));
+ args.push_back( make_pair( sizeof(cl_int) , (void *)&src.rows));
+ args.push_back( make_pair( sizeof(cl_int) , (void *)&src.step));
+ args.push_back( make_pair( sizeof(cl_int) , (void *)&dst.step));
+ args.push_back( make_pair( sizeof(cl_int) , (void *)&channels));
+ args.push_back( make_pair( sizeof(cl_int) , (void *)&bidx));
+ args.push_back( make_pair( sizeof(cl_mem) , (void *)&src.data));
+ args.push_back( make_pair( sizeof(cl_mem) , (void *)&dst.data));
+ size_t gt[3] = {src.cols, src.rows, 1}, lt[3] = {16, 16, 1};
+ openCLExecuteKernel(src.clCxt, &cvt_color, "RGB2YCrCb", gt, lt, args, -1, -1, build_options);
+}
+void cvtColor_caller(const oclMat &src, oclMat &dst, int code, int dcn)
+{
+ Size sz = src.size();
+ int scn = src.oclchannels(), depth = src.depth(), bidx;
- CV_Assert(depth == CV_8U || depth == CV_16U);
+ CV_Assert(depth == CV_8U || depth == CV_16U || depth == CV_32F);
- switch (code)
- {
- /*
- case CV_BGR2BGRA: case CV_RGB2BGRA: case CV_BGRA2BGR:
- case CV_RGBA2BGR: case CV_RGB2BGR: case CV_BGRA2RGBA:
- case CV_BGR2BGR565: case CV_BGR2BGR555: case CV_RGB2BGR565: case CV_RGB2BGR555:
- case CV_BGRA2BGR565: case CV_BGRA2BGR555: case CV_RGBA2BGR565: case CV_RGBA2BGR555:
- case CV_BGR5652BGR: case CV_BGR5552BGR: case CV_BGR5652RGB: case CV_BGR5552RGB:
- case CV_BGR5652BGRA: case CV_BGR5552BGRA: case CV_BGR5652RGBA: case CV_BGR5552RGBA:
- */
- case CV_BGR2GRAY:
- case CV_BGRA2GRAY:
- case CV_RGB2GRAY:
- case CV_RGBA2GRAY:
- {
- CV_Assert(scn == 3 || scn == 4);
- bidx = code == CV_BGR2GRAY || code == CV_BGRA2GRAY ? 0 : 2;
- dst.create(sz, CV_MAKETYPE(depth, 1));
- RGB2Gray_caller(src, dst, bidx);
- break;
- }
+ switch (code)
+ {
/*
- case CV_BGR5652GRAY: case CV_BGR5552GRAY:
- case CV_GRAY2BGR: case CV_GRAY2BGRA:
- case CV_GRAY2BGR565: case CV_GRAY2BGR555:
- case CV_BGR2YCrCb: case CV_RGB2YCrCb:
- case CV_BGR2YUV: case CV_RGB2YUV:
- case CV_YCrCb2BGR: case CV_YCrCb2RGB:
- case CV_YUV2BGR: case CV_YUV2RGB:
- case CV_BGR2XYZ: case CV_RGB2XYZ:
- case CV_XYZ2BGR: case CV_XYZ2RGB:
- case CV_BGR2HSV: case CV_RGB2HSV: case CV_BGR2HSV_FULL: case CV_RGB2HSV_FULL:
- case CV_BGR2HLS: case CV_RGB2HLS: case CV_BGR2HLS_FULL: case CV_RGB2HLS_FULL:
- case CV_HSV2BGR: case CV_HSV2RGB: case CV_HSV2BGR_FULL: case CV_HSV2RGB_FULL:
- case CV_HLS2BGR: case CV_HLS2RGB: case CV_HLS2BGR_FULL: case CV_HLS2RGB_FULL:
+ case CV_BGR2BGRA: case CV_RGB2BGRA: case CV_BGRA2BGR:
+ case CV_RGBA2BGR: case CV_RGB2BGR: case CV_BGRA2RGBA:
+ case CV_BGR2BGR565: case CV_BGR2BGR555: case CV_RGB2BGR565: case CV_RGB2BGR555:
+ case CV_BGRA2BGR565: case CV_BGRA2BGR555: case CV_RGBA2BGR565: case CV_RGBA2BGR555:
+ case CV_BGR5652BGR: case CV_BGR5552BGR: case CV_BGR5652RGB: case CV_BGR5552RGB:
+ case CV_BGR5652BGRA: case CV_BGR5552BGRA: case CV_BGR5652RGBA: case CV_BGR5552RGBA:
*/
- default:
- CV_Error( CV_StsBadFlag, "Unknown/unsupported color conversion code" );
- }
+ case CV_BGR2GRAY:
+ case CV_BGRA2GRAY:
+ case CV_RGB2GRAY:
+ case CV_RGBA2GRAY:
+ {
+ CV_Assert(scn == 3 || scn == 4);
+ bidx = code == CV_BGR2GRAY || code == CV_BGRA2GRAY ? 0 : 2;
+ dst.create(sz, CV_MAKETYPE(depth, 1));
+ RGB2Gray_caller(src, dst, bidx);
+ break;
}
+ case CV_GRAY2BGR:
+ case CV_GRAY2BGRA:
+ {
+ CV_Assert(scn == 1);
+ dcn = code == CV_GRAY2BGRA ? 4 : 3;
+ dst.create(sz, CV_MAKETYPE(depth, dcn));
+ Gray2RGB_caller(src, dst);
+ break;
+ }
+ case CV_BGR2YUV:
+ case CV_RGB2YUV:
+ {
+ CV_Assert(scn == 3 || scn == 4);
+ bidx = code == CV_BGR2YUV ? 0 : 2;
+ dst.create(sz, CV_MAKETYPE(depth, 3));
+ RGB2YUV_caller(src, dst, bidx);
+ break;
+ }
+ case CV_YUV2BGR:
+ case CV_YUV2RGB:
+ {
+ CV_Assert(scn == 3 || scn == 4);
+ bidx = code == CV_YUV2BGR ? 0 : 2;
+ dst.create(sz, CV_MAKETYPE(depth, 3));
+ YUV2RGB_caller(src, dst, bidx);
+ break;
+ }
+ case CV_YUV2RGB_NV12:
+ case CV_YUV2BGR_NV12:
+ case CV_YUV2RGBA_NV12:
+ case CV_YUV2BGRA_NV12:
+ {
+ CV_Assert(scn == 1);
+ CV_Assert( sz.width % 2 == 0 && sz.height % 3 == 0 && depth == CV_8U );
+ dcn = code == CV_YUV2BGRA_NV12 || code == CV_YUV2RGBA_NV12 ? 4 : 3;
+ bidx = code == CV_YUV2BGRA_NV12 || code == CV_YUV2BGR_NV12 ? 0 : 2;
+
+ Size dstSz(sz.width, sz.height * 2 / 3);
+ dst.create(dstSz, CV_MAKETYPE(depth, dcn));
+ YUV2RGB_NV12_caller(src, dst, bidx);
+ break;
+ }
+ case CV_BGR2YCrCb:
+ case CV_RGB2YCrCb:
+ {
+ CV_Assert(scn == 3 || scn == 4);
+ bidx = code == CV_BGR2YCrCb ? 0 : 2;
+ dst.create(sz, CV_MAKETYPE(depth, 3));
+ RGB2YCrCb_caller(src, dst, bidx);
+ break;
+ }
+ case CV_YCrCb2BGR:
+ case CV_YCrCb2RGB:
+ {
+ break;
+ }
+ /*
+ case CV_BGR5652GRAY: case CV_BGR5552GRAY:
+ case CV_GRAY2BGR565: case CV_GRAY2BGR555:
+ case CV_BGR2YCrCb: case CV_RGB2YCrCb:
+ case CV_BGR2XYZ: case CV_RGB2XYZ:
+ case CV_XYZ2BGR: case CV_XYZ2RGB:
+ case CV_BGR2HSV: case CV_RGB2HSV: case CV_BGR2HSV_FULL: case CV_RGB2HSV_FULL:
+ case CV_BGR2HLS: case CV_RGB2HLS: case CV_BGR2HLS_FULL: case CV_RGB2HLS_FULL:
+ case CV_HSV2BGR: case CV_HSV2RGB: case CV_HSV2BGR_FULL: case CV_HSV2RGB_FULL:
+ case CV_HLS2BGR: case CV_HLS2RGB: case CV_HLS2BGR_FULL: case CV_HLS2RGB_FULL:
+ */
+ default:
+ CV_Error( CV_StsBadFlag, "Unknown/unsupported color conversion code" );
+ }
+}
}
void cv::ocl::cvtColor(const oclMat &src, oclMat &dst, int code, int dcn)
diff --git a/modules/ocl/src/kernels/cvt_color.cl b/modules/ocl/src/kernels/cvt_color.cl
index 6c3868056..952193931 100644
--- a/modules/ocl/src/kernels/cvt_color.cl
+++ b/modules/ocl/src/kernels/cvt_color.cl
@@ -16,6 +16,7 @@
//
// @Authors
// Jia Haipeng, jiahaipeng95@gmail.com
+// Peng Xiao, pengxiao@multicorewareinc.com
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
@@ -48,13 +49,33 @@
#pragma OPENCL EXTENSION cl_khr_fp64:enable
#endif
+#define DATA_TYPE UNDEFINED
+
#if defined (DEPTH_0)
+#undef DATA_TYPE
#define DATA_TYPE uchar
+#define MAX_NUM 255
+#define HALF_MAX 128
+#define SAT_CAST(num) convert_uchar_sat(num)
#endif
+
#if defined (DEPTH_2)
+#undef DATA_TYPE
#define DATA_TYPE ushort
+#define MAX_NUM 65535
+#define HALF_MAX 32768
+#define SAT_CAST(num) convert_ushort_sat(num)
#endif
+#if defined (DEPTH_5)
+#undef DATA_TYPE
+#define DATA_TYPE float
+#define MAX_NUM 1.0f
+#define HALF_MAX 0.5f
+#define SAT_CAST(num) (num)
+#endif
+
+
#define CV_DESCALE(x,n) (((x) + (1 << ((n)-1))) >> (n))
enum
{
@@ -65,6 +86,7 @@ enum
B2Y = 1868,
BLOCK_SIZE = 256
};
+///////////////////////////////////// RGB <-> GRAY //////////////////////////////////////
__kernel void RGB2Gray(int cols,int rows,int src_step,int dst_step,int channels,
int bidx, __global const DATA_TYPE* src, __global DATA_TYPE* dst)
@@ -72,10 +94,203 @@ __kernel void RGB2Gray(int cols,int rows,int src_step,int dst_step,int channels,
const int x = get_global_id(0);
const int y = get_global_id(1);
+ src_step /= sizeof(DATA_TYPE);
+ dst_step /= sizeof(DATA_TYPE);
if (y < rows && x < cols)
{
- int src_idx = y * src_step + x * channels * sizeof(DATA_TYPE);
- int dst_idx = y * dst_step + x * sizeof(DATA_TYPE);
+ int src_idx = y * src_step + x * channels;
+ int dst_idx = y * dst_step + x;
+#if defined (DEPTH_5)
+ dst[dst_idx] = src[src_idx + bidx] * 0.114f + src[src_idx + 1] * 0.587f + src[src_idx + (bidx^2)] * 0.299f;
+#else
dst[dst_idx] = (DATA_TYPE)CV_DESCALE((src[src_idx + bidx] * B2Y + src[src_idx + 1] * G2Y + src[src_idx + (bidx^2)] * R2Y), yuv_shift);
+#endif
+ }
+}
+
+__kernel void Gray2RGB(int cols,int rows,int src_step,int dst_step,
+ __global const DATA_TYPE* src, __global DATA_TYPE* dst)
+{
+ const int x = get_global_id(0);
+ const int y = get_global_id(1);
+
+ src_step /= sizeof(DATA_TYPE);
+ dst_step /= sizeof(DATA_TYPE);
+ if (y < rows && x < cols)
+ {
+ int src_idx = y * src_step + x;
+ int dst_idx = y * dst_step + x * 4;
+ DATA_TYPE val = src[src_idx];
+ dst[dst_idx++] = val;
+ dst[dst_idx++] = val;
+ dst[dst_idx++] = val;
+ dst[dst_idx] = MAX_NUM;
+ }
+}
+
+///////////////////////////////////// RGB <-> YUV //////////////////////////////////////
+__constant float c_RGB2YUVCoeffs_f[5] = { 0.114f, 0.587f, 0.299f, 0.492f, 0.877f };
+__constant int c_RGB2YUVCoeffs_i[5] = { B2Y, G2Y, R2Y, 8061, 14369 };
+
+__kernel void RGB2YUV(int cols,int rows,int src_step,int dst_step,int channels,
+ int bidx, __global const DATA_TYPE* src, __global DATA_TYPE* dst)
+{
+ const int x = get_global_id(0);
+ const int y = get_global_id(1);
+
+ src_step /= sizeof(DATA_TYPE);
+ dst_step /= sizeof(DATA_TYPE);
+
+ if (y < rows && x < cols)
+ {
+ int src_idx = y * src_step + x * channels;
+ int dst_idx = y * dst_step + x * channels;
+ dst += dst_idx;
+ const DATA_TYPE rgb[] = {src[src_idx], src[src_idx + 1], src[src_idx + 2]};
+#if defined (DEPTH_5)
+ __constant float * coeffs = c_RGB2YUVCoeffs_f;
+ const DATA_TYPE Y = rgb[0] * coeffs[bidx] + rgb[1] * coeffs[1] + rgb[2] * coeffs[bidx^2];
+ const DATA_TYPE Cr = (rgb[bidx] - Y) * coeffs[3] + HALF_MAX;
+ const DATA_TYPE Cb = (rgb[bidx^2] - Y) * coeffs[4] + HALF_MAX;
+#else
+ __constant int * coeffs = c_RGB2YUVCoeffs_i;
+ const int delta = HALF_MAX * (1 << yuv_shift);
+ const int Y = CV_DESCALE(rgb[0] * coeffs[bidx] + rgb[1] * coeffs[1] + rgb[2] * coeffs[bidx^2], yuv_shift);
+ const int Cr = CV_DESCALE((rgb[bidx] - Y) * coeffs[3] + delta, yuv_shift);
+ const int Cb = CV_DESCALE((rgb[bidx^2] - Y) * coeffs[4] + delta, yuv_shift);
+#endif
+ dst[0] = SAT_CAST( Y );
+ dst[1] = SAT_CAST( Cr );
+ dst[2] = SAT_CAST( Cb );
+ }
+}
+
+__constant float c_YUV2RGBCoeffs_f[5] = { 2.032f, -0.395f, -0.581f, 1.140f };
+__constant int c_YUV2RGBCoeffs_i[5] = { 33292, -6472, -9519, 18678 };
+
+__kernel void YUV2RGB(int cols,int rows,int src_step,int dst_step,int channels,
+ int bidx, __global const DATA_TYPE* src, __global DATA_TYPE* dst)
+{
+ const int x = get_global_id(0);
+ const int y = get_global_id(1);
+
+ src_step /= sizeof(DATA_TYPE);
+ dst_step /= sizeof(DATA_TYPE);
+
+ if (y < rows && x < cols)
+ {
+ int src_idx = y * src_step + x * channels;
+ int dst_idx = y * dst_step + x * channels;
+ dst += dst_idx;
+ const DATA_TYPE yuv[] = {src[src_idx], src[src_idx + 1], src[src_idx + 2]};
+
+#if defined (DEPTH_5)
+ __constant float * coeffs = c_YUV2RGBCoeffs_f;
+ const float b = yuv[0] + (yuv[2] - HALF_MAX) * coeffs[3];
+ const float g = yuv[0] + (yuv[2] - HALF_MAX) * coeffs[2] + (yuv[1] - HALF_MAX) * coeffs[1];
+ const float r = yuv[0] + (yuv[1] - HALF_MAX) * coeffs[0];
+#else
+ __constant int * coeffs = c_YUV2RGBCoeffs_i;
+ const int b = yuv[0] + CV_DESCALE((yuv[2] - HALF_MAX) * coeffs[3], yuv_shift);
+ const int g = yuv[0] + CV_DESCALE((yuv[2] - HALF_MAX) * coeffs[2] + (yuv[1] - HALF_MAX) * coeffs[1], yuv_shift);
+ const int r = yuv[0] + CV_DESCALE((yuv[1] - HALF_MAX) * coeffs[0], yuv_shift);
+#endif
+ dst[bidx^2] = SAT_CAST( b );
+ dst[1] = SAT_CAST( g );
+ dst[bidx] = SAT_CAST( r );
+ }
+}
+
+__constant int ITUR_BT_601_CY = 1220542;
+__constant int ITUR_BT_601_CUB = 2116026;
+__constant int ITUR_BT_601_CUG = -409993;
+__constant int ITUR_BT_601_CVG = -852492;
+__constant int ITUR_BT_601_CVR = 1673527;
+__constant int ITUR_BT_601_SHIFT = 20;
+
+__kernel void YUV2RGBA_NV12(int cols,int rows,int src_step,int dst_step,
+ int bidx, int width, int height, __global const uchar* src, __global uchar* dst)
+{
+ const int x = get_global_id(0); // max_x = width / 2
+ const int y = get_global_id(1); // max_y = height/ 2
+
+ if (y < height / 2 && x < width / 2 )
+ {
+ __global const uchar* ysrc = src + (y << 1) * src_step + (x << 1);
+ __global const uchar* usrc = src + (height + y) * src_step + (x << 1);
+ __global uchar* dst1 = dst + (y << 1) * dst_step + (x << 3);
+ __global uchar* dst2 = dst + ((y << 1) + 1) * dst_step + (x << 3);
+ int Y1 = ysrc[0];
+ int Y2 = ysrc[1];
+ int Y3 = ysrc[src_step];
+ int Y4 = ysrc[src_step + 1];
+
+ int U = usrc[0] - 128;
+ int V = usrc[1] - 128;
+
+ int ruv = (1 << (ITUR_BT_601_SHIFT - 1)) + ITUR_BT_601_CVR * V;
+ int guv = (1 << (ITUR_BT_601_SHIFT - 1)) + ITUR_BT_601_CVG * V + ITUR_BT_601_CUG * U;
+ int buv = (1 << (ITUR_BT_601_SHIFT - 1)) + ITUR_BT_601_CUB * U;
+
+ Y1 = max(0, Y1 - 16) * ITUR_BT_601_CY;
+ dst1[2 - bidx] = convert_uchar_sat((Y1 + ruv) >> ITUR_BT_601_SHIFT);
+ dst1[1] = convert_uchar_sat((Y1 + guv) >> ITUR_BT_601_SHIFT);
+ dst1[bidx] = convert_uchar_sat((Y1 + buv) >> ITUR_BT_601_SHIFT);
+ dst1[3] = 255;
+
+ Y2 = max(0, Y2 - 16) * ITUR_BT_601_CY;
+ dst1[6 - bidx] = convert_uchar_sat((Y2 + ruv) >> ITUR_BT_601_SHIFT);
+ dst1[5] = convert_uchar_sat((Y2 + guv) >> ITUR_BT_601_SHIFT);
+ dst1[4 + bidx] = convert_uchar_sat((Y2 + buv) >> ITUR_BT_601_SHIFT);
+ dst1[7] = 255;
+
+ Y3 = max(0, Y3 - 16) * ITUR_BT_601_CY;
+ dst2[2 - bidx] = convert_uchar_sat((Y3 + ruv) >> ITUR_BT_601_SHIFT);
+ dst2[1] = convert_uchar_sat((Y3 + guv) >> ITUR_BT_601_SHIFT);
+ dst2[bidx] = convert_uchar_sat((Y3 + buv) >> ITUR_BT_601_SHIFT);
+ dst2[3] = 255;
+
+ Y4 = max(0, Y4 - 16) * ITUR_BT_601_CY;
+ dst2[6 - bidx] = convert_uchar_sat((Y4 + ruv) >> ITUR_BT_601_SHIFT);
+ dst2[5] = convert_uchar_sat((Y4 + guv) >> ITUR_BT_601_SHIFT);
+ dst2[4 + bidx] = convert_uchar_sat((Y4 + buv) >> ITUR_BT_601_SHIFT);
+ dst2[7] = 255;
+ }
+}
+
+///////////////////////////////////// RGB <-> YUV //////////////////////////////////////
+__constant float c_RGB2YCrCbCoeffs_f[5] = {0.299f, 0.587f, 0.114f, 0.713f, 0.564f};
+__constant int c_RGB2YCrCbCoeffs_i[5] = {R2Y, G2Y, B2Y, 11682, 9241};
+
+__kernel void RGB2YCrCb(int cols,int rows,int src_step,int dst_step,int channels,
+ int bidx, __global const DATA_TYPE* src, __global DATA_TYPE* dst)
+{
+ const int x = get_global_id(0);
+ const int y = get_global_id(1);
+
+ src_step /= sizeof(DATA_TYPE);
+ dst_step /= sizeof(DATA_TYPE);
+
+ if (y < rows && x < cols)
+ {
+ int src_idx = y * src_step + x * channels;
+ int dst_idx = y * dst_step + x * channels;
+ dst += dst_idx;
+ const DATA_TYPE rgb[] = {src[src_idx], src[src_idx + 1], src[src_idx + 2]};
+#if defined (DEPTH_5)
+ __constant float * coeffs = c_RGB2YCrCbCoeffs_f;
+ const DATA_TYPE Y = rgb[0] * coeffs[bidx^2] + rgb[1] * coeffs[1] + rgb[2] * coeffs[bidx];
+ const DATA_TYPE Cr = (rgb[bidx^2] - Y) * coeffs[3] + HALF_MAX;
+ const DATA_TYPE Cb = (rgb[bidx] - Y) * coeffs[4] + HALF_MAX;
+#else
+ __constant int * coeffs = c_RGB2YCrCbCoeffs_i;
+ const int delta = HALF_MAX * (1 << yuv_shift);
+ const int Y = CV_DESCALE(rgb[0] * coeffs[bidx^2] + rgb[1] * coeffs[1] + rgb[2] * coeffs[bidx], yuv_shift);
+ const int Cr = CV_DESCALE((rgb[bidx^2] - Y) * coeffs[3] + delta, yuv_shift);
+ const int Cb = CV_DESCALE((rgb[bidx] - Y) * coeffs[4] + delta, yuv_shift);
+#endif
+ dst[0] = SAT_CAST( Y );
+ dst[1] = SAT_CAST( Cr );
+ dst[2] = SAT_CAST( Cb );
}
}
diff --git a/modules/ocl/test/test_color.cpp b/modules/ocl/test/test_color.cpp
new file mode 100644
index 000000000..3935559fd
--- /dev/null
+++ b/modules/ocl/test/test_color.cpp
@@ -0,0 +1,193 @@
+/*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) 2010-2012, Multicoreware, Inc., all rights reserved.
+// Copyright (C) 2010-2012, Advanced Micro Devices, Inc., all rights reserved.
+// Third party copyrights are property of their respective owners.
+//
+// @Authors
+// Peng Xiao, pengxiao@multicorewareinc.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 oclMaterials 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.
+//
+//M*/
+
+#include "precomp.hpp"
+#ifdef HAVE_OPENCL
+
+//#define MAT_DEBUG
+#ifdef MAT_DEBUG
+#define MAT_DIFF(mat, mat2)\
+{\
+ for(int i = 0; i < mat.rows; i ++)\
+ {\
+ for(int j = 0; j < mat.cols; j ++)\
+ {\
+ cv::Vec4b s = mat.at<cv::Vec4b>(i, j);\
+ cv::Vec4b s2 = mat2.at<cv::Vec4b>(i, j);\
+ if(s != s2) printf("*");\
+ else printf(".");\
+ }\
+ puts("\n");\
+ }\
+}
+#else
+#define MAT_DIFF(mat, mat2)
+#endif
+
+
+namespace
+{
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////
+// cvtColor
+PARAM_TEST_CASE(CvtColor, cv::Size, MatDepth)
+{
+ cv::Size size;
+ int depth;
+ bool useRoi;
+
+ cv::Mat img;
+
+ virtual void SetUp()
+ {
+ size = GET_PARAM(0);
+ depth = GET_PARAM(1);
+
+ img = randomMat(size, CV_MAKE_TYPE(depth, 3), 0.0, depth == CV_32F ? 1.0 : 255.0);
+ }
+};
+
+#define CVTCODE(name) cv::COLOR_ ## name
+#define TEST_P_CVTCOLOR(name) TEST_P(CvtColor, name)\
+{\
+ cv::Mat src = img;\
+ cv::ocl::oclMat ocl_img, dst;\
+ ocl_img.upload(img);\
+ cv::ocl::cvtColor(ocl_img, dst, CVTCODE(name));\
+ cv::Mat dst_gold;\
+ cv::cvtColor(src, dst_gold, CVTCODE(name));\
+ cv::Mat dst_mat;\
+ dst.download(dst_mat);\
+ EXPECT_MAT_NEAR(dst_gold, dst_mat, 1e-5, "");\
+}
+
+//add new ones here using macro
+TEST_P_CVTCOLOR(RGB2GRAY)
+TEST_P_CVTCOLOR(BGR2GRAY)
+TEST_P_CVTCOLOR(RGBA2GRAY)
+TEST_P_CVTCOLOR(BGRA2GRAY)
+
+TEST_P_CVTCOLOR(RGB2YUV)
+TEST_P_CVTCOLOR(BGR2YUV)
+TEST_P_CVTCOLOR(YUV2RGB)
+TEST_P_CVTCOLOR(YUV2BGR)
+TEST_P_CVTCOLOR(RGB2YCrCb)
+TEST_P_CVTCOLOR(BGR2YCrCb)
+
+PARAM_TEST_CASE(CvtColor_Gray2RGB, cv::Size, MatDepth, int)
+{
+ cv::Size size;
+ int code;
+ int depth;
+ cv::Mat img;
+
+ virtual void SetUp()
+ {
+ size = GET_PARAM(0);
+ depth = GET_PARAM(1);
+ code = GET_PARAM(2);
+ img = randomMat(size, CV_MAKETYPE(depth, 1), 0.0, depth == CV_32F ? 1.0 : 255.0);
+ }
+};
+TEST_P(CvtColor_Gray2RGB, Accuracy)
+{
+ cv::Mat src = img;
+ cv::ocl::oclMat ocl_img, dst;
+ ocl_img.upload(src);
+ cv::ocl::cvtColor(ocl_img, dst, code);
+ cv::Mat dst_gold;
+ cv::cvtColor(src, dst_gold, code);
+ cv::Mat dst_mat;
+ dst.download(dst_mat);
+ EXPECT_MAT_NEAR(dst_gold, dst_mat, 1e-5, "");
+}
+
+
+PARAM_TEST_CASE(CvtColor_YUV420, cv::Size, int)
+{
+ cv::Size size;
+ int code;
+
+ cv::Mat img;
+
+ virtual void SetUp()
+ {
+ size = GET_PARAM(0);
+ code = GET_PARAM(1);
+ img = randomMat(size, CV_8UC1, 0.0, 255.0);
+ }
+};
+
+TEST_P(CvtColor_YUV420, Accuracy)
+{
+ cv::Mat src = img;
+ cv::ocl::oclMat ocl_img, dst;
+ ocl_img.upload(src);
+ cv::ocl::cvtColor(ocl_img, dst, code);
+ cv::Mat dst_gold;
+ cv::cvtColor(src, dst_gold, code);
+ cv::Mat dst_mat;
+ dst.download(dst_mat);
+ MAT_DIFF(dst_mat, dst_gold);
+ EXPECT_MAT_NEAR(dst_gold, dst_mat, 1e-5, "");
+}
+
+INSTANTIATE_TEST_CASE_P(OCL_ImgProc, CvtColor, testing::Combine(
+ DIFFERENT_SIZES,
+ testing::Values(MatDepth(CV_8U), MatDepth(CV_16U), MatDepth(CV_32F))
+ ));
+
+INSTANTIATE_TEST_CASE_P(OCL_ImgProc, CvtColor_YUV420, testing::Combine(
+ testing::Values(cv::Size(128, 45), cv::Size(46, 132), cv::Size(1024, 1023)),
+ testing::Values(CV_YUV2RGBA_NV12, CV_YUV2BGRA_NV12, CV_YUV2RGB_NV12, CV_YUV2BGR_NV12)
+ ));
+
+INSTANTIATE_TEST_CASE_P(OCL_ImgProc, CvtColor_Gray2RGB, testing::Combine(
+ DIFFERENT_SIZES,
+ testing::Values(MatDepth(CV_8U), MatDepth(CV_16U), MatDepth(CV_32F)),
+ testing::Values(CV_GRAY2BGR, CV_GRAY2BGRA, CV_GRAY2RGB, CV_GRAY2RGBA)
+ ));
+}
+#endif