mirror of
https://github.com/opencv/opencv.git
synced 2026-07-29 15:23:05 +04:00
fixed YUV channel equivalence
This commit is contained in:
Rostislav Vasilikhin
@@ -102,6 +102,38 @@ static IppStatus sts = ippInit();
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namespace cv
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{
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//constants for conversion from/to RGB and Gray, YUV, YCrCb according to BT.601
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const float B2YF = 0.114f;
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const float G2YF = 0.587f;
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const float R2YF = 0.299f;
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//to YCbCr
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const float YCBF = 0.564f; // == 1/2/(1-B2YF)
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const float YCRF = 0.713f; // == 1/2/(1-R2YF)
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const int YCBI = 9241; // == YCBF*16384
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const int YCRI = 11682; // == YCRF*16384
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//to YUV
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const float B2UF = 0.492f;
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const float R2VF = 0.877f;
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const int B2UI = 8061; // == B2UF*16384
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const int R2VI = 14369; // == R2VF*16384
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//from YUV
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const float U2BF = 2.032f;
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const float U2GF = -0.395f;
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const float V2GF = -0.581f;
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const float V2RF = 1.140f;
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const int U2BI = 33292;
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const int U2GI = -6472;
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const int V2GI = -9519;
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const int V2RI = 18678;
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//from YCrCb
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const float CR2RF = 1.403f;
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const float CB2GF = -0.344f;
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const float CR2GF = -0.714f;
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const float CB2BF = 1.773f;
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const int CR2RI = 22987;
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const int CB2GI = -5636;
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const int CR2GI = -11698;
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const int CB2BI = 29049;
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// computes cubic spline coefficients for a function: (xi=i, yi=f[i]), i=0..n
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template<typename _Tp> static void splineBuild(const _Tp* f, int n, _Tp* tab)
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@@ -402,9 +434,9 @@ struct IPPColor2GrayFunctor
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{
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IPPColor2GrayFunctor(ippiColor2GrayFunc _func) : func(_func)
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{
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coeffs[0] = 0.114f;
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coeffs[1] = 0.587f;
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coeffs[2] = 0.299f;
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coeffs[0] = B2YF;
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coeffs[1] = G2YF;
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coeffs[2] = R2YF;
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}
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bool operator()(const void *src, int srcStep, void *dst, int dstStep, int cols, int rows) const
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{
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@@ -668,9 +700,9 @@ enum
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{
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yuv_shift = 14,
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xyz_shift = 12,
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R2Y = 4899,
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G2Y = 9617,
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B2Y = 1868,
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R2Y = 4899, // B2YF*16384
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G2Y = 9617, // G2YF*16384
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B2Y = 1868, // B2YF*16384
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BLOCK_SIZE = 256
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};
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@@ -709,7 +741,7 @@ template<typename _Tp> struct RGB2Gray
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RGB2Gray(int _srccn, int blueIdx, const float* _coeffs) : srccn(_srccn)
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{
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static const float coeffs0[] = { 0.299f, 0.587f, 0.114f };
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static const float coeffs0[] = { R2YF, G2YF, B2YF };
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memcpy( coeffs, _coeffs ? _coeffs : coeffs0, 3*sizeof(coeffs[0]) );
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if(blueIdx == 0)
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std::swap(coeffs[0], coeffs[2]);
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@@ -789,7 +821,7 @@ template<typename _Tp> struct RGB2YCrCb_f
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RGB2YCrCb_f(int _srccn, int _blueIdx, const float* _coeffs) : srccn(_srccn), blueIdx(_blueIdx)
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{
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static const float coeffs0[] = {0.299f, 0.587f, 0.114f, 0.713f, 0.564f};
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static const float coeffs0[] = {R2YF, G2YF, B2YF, YCRF, YCBF};
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memcpy(coeffs, _coeffs ? _coeffs : coeffs0, 5*sizeof(coeffs[0]));
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if(blueIdx==0) std::swap(coeffs[0], coeffs[2]);
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}
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@@ -820,7 +852,7 @@ template<typename _Tp> struct RGB2YCrCb_i
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RGB2YCrCb_i(int _srccn, int _blueIdx, const int* _coeffs)
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: srccn(_srccn), blueIdx(_blueIdx)
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{
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static const int coeffs0[] = {R2Y, G2Y, B2Y, 11682, 9241};
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static const int coeffs0[] = {R2Y, G2Y, B2Y, YCRI, YCBI};
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memcpy(coeffs, _coeffs ? _coeffs : coeffs0, 5*sizeof(coeffs[0]));
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if(blueIdx==0) std::swap(coeffs[0], coeffs[2]);
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}
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@@ -852,7 +884,7 @@ template<typename _Tp> struct YCrCb2RGB_f
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YCrCb2RGB_f(int _dstcn, int _blueIdx, const float* _coeffs)
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: dstcn(_dstcn), blueIdx(_blueIdx)
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{
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static const float coeffs0[] = {1.403f, -0.714f, -0.344f, 1.773f};
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static const float coeffs0[] = {CR2RF, CR2GF, CB2GF, CB2BF};
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memcpy(coeffs, _coeffs ? _coeffs : coeffs0, 4*sizeof(coeffs[0]));
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}
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void operator()(const _Tp* src, _Tp* dst, int n) const
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@@ -888,7 +920,7 @@ template<typename _Tp> struct YCrCb2RGB_i
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YCrCb2RGB_i(int _dstcn, int _blueIdx, const int* _coeffs)
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: dstcn(_dstcn), blueIdx(_blueIdx)
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{
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static const int coeffs0[] = {22987, -11698, -5636, 29049};
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static const int coeffs0[] = {CR2RI, CR2GI, CB2GI, CB2BI};
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memcpy(coeffs, _coeffs ? _coeffs : coeffs0, 4*sizeof(coeffs[0]));
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}
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@@ -3832,8 +3864,8 @@ void cv::cvtColor( InputArray _src, OutputArray _dst, int code, int dcn )
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{
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CV_Assert( scn == 3 || scn == 4 );
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bidx = code == CV_BGR2YCrCb || code == CV_BGR2YUV ? 0 : 2;
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static const float yuv_f[] = { 0.114f, 0.587f, 0.299f, 0.492f, 0.877f };
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static const int yuv_i[] = { B2Y, G2Y, R2Y, 8061, 14369 };
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static const float yuv_f[] = { R2YF, G2YF, B2YF, R2VF, B2UF };
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static const int yuv_i[] = { R2Y, G2Y, B2Y, R2VI, B2UI };
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const float* coeffs_f = code == CV_BGR2YCrCb || code == CV_RGB2YCrCb ? 0 : yuv_f;
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const int* coeffs_i = code == CV_BGR2YCrCb || code == CV_RGB2YCrCb ? 0 : yuv_i;
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@@ -3861,8 +3893,8 @@ void cv::cvtColor( InputArray _src, OutputArray _dst, int code, int dcn )
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if( dcn <= 0 ) dcn = 3;
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CV_Assert( scn == 3 && (dcn == 3 || dcn == 4) );
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bidx = code == CV_YCrCb2BGR || code == CV_YUV2BGR ? 0 : 2;
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static const float yuv_f[] = { 2.032f, -0.395f, -0.581f, 1.140f };
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static const int yuv_i[] = { 33292, -6472, -9519, 18678 };
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static const float yuv_f[] = {V2RF, V2GF, U2GF, U2BF};
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static const int yuv_i[] = { V2RI, V2GI, U2GI, U2BI };
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const float* coeffs_f = code == CV_YCrCb2BGR || code == CV_YCrCb2RGB ? 0 : yuv_f;
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const int* coeffs_i = code == CV_YCrCb2BGR || code == CV_YCrCb2RGB ? 0 : yuv_i;
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@@ -115,9 +115,42 @@ enum
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BLOCK_SIZE = 256
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};
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//constants for conversion from/to RGB and Gray, YUV, YCrCb according to BT.601
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#define B2YF 0.114f
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#define G2YF 0.587f
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#define R2YF 0.299f
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//to YCbCr
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#define YCBF 0.564f
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#define YCRF 0.713f
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#define YCBI 9241
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#define YCRI 11682
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//to YUV
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#define B2UF 0.492f
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#define R2VF 0.877f
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#define B2UI 8061
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#define R2VI 14369
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//from YUV
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#define U2BF 2.032f
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#define U2GF -0.395f
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#define V2GF -0.581f
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#define V2RF 1.140f
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#define U2BI 33292
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#define U2GI -6472
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#define V2GI -9519
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#define V2RI 18678
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//from YCrCb
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#define CR2RF 1.403f
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#define CB2GF -0.344f
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#define CR2GF -0.714f
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#define CB2BF 1.773f
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#define CR2RI 22987
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#define CB2GI -5636
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#define CR2GI -11698
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#define CB2BI 29049
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///////////////////////////////////// RGB <-> GRAY //////////////////////////////////////
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__constant float c_RGB2GrayCoeffs_f[3] = { 0.114f, 0.587f, 0.299f };
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__constant float c_RGB2GrayCoeffs_f[3] = { B2YF, G2YF, R2YF };
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__constant int c_RGB2GrayCoeffs_i[3] = { B2Y, G2Y, R2Y };
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__kernel void RGB2Gray(int cols, int rows, int src_step, int dst_step,
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@@ -135,7 +168,7 @@ __kernel void RGB2Gray(int cols, int rows, int src_step, int dst_step,
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#ifndef INTEL_DEVICE
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#ifdef DEPTH_5
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dst[dst_idx] = src[src_idx + bidx] * 0.114f + src[src_idx + 1] * 0.587f + src[src_idx + (bidx^2)] * 0.299f;
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dst[dst_idx] = src[src_idx + bidx] * B2YF + src[src_idx + 1] * G2YF + src[src_idx + (bidx^2)] * R2YF;
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#else
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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);
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#endif
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@@ -221,8 +254,8 @@ __kernel void Gray2RGB(int cols, int rows, int src_step, int dst_step,
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///////////////////////////////////// RGB <-> YUV //////////////////////////////////////
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__constant float c_RGB2YUVCoeffs_f[5] = { 0.114f, 0.587f, 0.299f, 0.492f, 0.877f };
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__constant int c_RGB2YUVCoeffs_i[5] = { B2Y, G2Y, R2Y, 8061, 14369 };
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__constant float c_RGB2YUVCoeffs_f[5] = { B2YF, G2YF, R2YF, B2UF, R2VF };
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__constant int c_RGB2YUVCoeffs_i[5] = { B2Y, G2Y, R2Y, B2UI, R2VI };
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__kernel void RGB2YUV(int cols, int rows, int src_step, int dst_step,
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__global const DATA_TYPE* src, __global DATA_TYPE* dst,
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@@ -252,18 +285,18 @@ __kernel void RGB2YUV(int cols, int rows, int src_step, int dst_step,
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const DATA_TYPE rgb[] = {src_ptr[0], src_ptr[1], src_ptr[2]};
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#ifdef DEPTH_5
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float Y = rgb[0] * coeffs[bidx^2] + rgb[1] * coeffs[1] + rgb[2] * coeffs[bidx];
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float U = (rgb[bidx^2] - Y) * coeffs[3] + HALF_MAX;
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float V = (rgb[bidx] - Y) * coeffs[4] + HALF_MAX;
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float Y = rgb[0] * coeffs[bidx] + rgb[1] * coeffs[1] + rgb[2] * coeffs[bidx^2];
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float U = (rgb[bidx] - Y) * coeffs[3] + HALF_MAX;
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float V = (rgb[bidx^2] - Y) * coeffs[4] + HALF_MAX;
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#else
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int Y = CV_DESCALE(rgb[0] * coeffs[bidx^2] + rgb[1] * coeffs[1] + rgb[2] * coeffs[bidx], yuv_shift);
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int U = CV_DESCALE((rgb[bidx^2] - Y) * coeffs[3] + delta, yuv_shift);
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int V = CV_DESCALE((rgb[bidx] - Y) * coeffs[4] + delta, yuv_shift);
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int Y = CV_DESCALE(rgb[0] * coeffs[bidx] + rgb[1] * coeffs[1] + rgb[2] * coeffs[bidx^2], yuv_shift);
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int U = CV_DESCALE((rgb[bidx] - Y) * coeffs[3] + delta, yuv_shift);
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int V = CV_DESCALE((rgb[bidx^2] - Y) * coeffs[4] + delta, yuv_shift);
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#endif
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dst_ptr[0] = SAT_CAST( Y );
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dst_ptr[1] = SAT_CAST( U );
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dst_ptr[2] = SAT_CAST( V );
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dst_ptr[1] = SAT_CAST( V ); //sic! store channels as YVU, not YUV
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dst_ptr[2] = SAT_CAST( U );
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}
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#elif (2 == pixels_per_work_item)
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{
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@@ -274,24 +307,24 @@ __kernel void RGB2YUV(int cols, int rows, int src_step, int dst_step,
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const float2 c1 = r0.s15;
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const float2 c2 = r0.s26;
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const float2 Y = (bidx == 0) ? (c0 * coeffs[2] + c1 * coeffs[1] + c2 * coeffs[0]) : (c0 * coeffs[0] + c1 * coeffs[1] + c2 * coeffs[2]);
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const float2 U = (bidx == 0) ? ((c2 - Y) * coeffs[3] + HALF_MAX) : ((c0 - Y) * coeffs[3] + HALF_MAX);
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const float2 V = (bidx == 0) ? ((c0 - Y) * coeffs[4] + HALF_MAX) : ((c2 - Y) * coeffs[4] + HALF_MAX);
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const float2 Y = (bidx == 0) ? (c0 * coeffs[0] + c1 * coeffs[1] + c2 * coeffs[2]) : (c0 * coeffs[2] + c1 * coeffs[1] + c2 * coeffs[0]);
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const float2 U = (bidx == 0) ? ((c0 - Y) * coeffs[3] + HALF_MAX) : ((c2 - Y) * coeffs[3] + HALF_MAX);
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const float2 V = (bidx == 0) ? ((c2 - Y) * coeffs[4] + HALF_MAX) : ((c0 - Y) * coeffs[4] + HALF_MAX);
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#else
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const int2 c0 = convert_int2(r0.s04);
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const int2 c1 = convert_int2(r0.s15);
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const int2 c2 = convert_int2(r0.s26);
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const int2 yi = (bidx == 0) ? CV_DESCALE(c0 * coeffs[2] + c1 * coeffs[1] + c2 * coeffs[0], yuv_shift) : CV_DESCALE(c0 * coeffs[0] + c1 * coeffs[1] + c2 * coeffs[2], yuv_shift);
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const int2 ui = (bidx == 0) ? CV_DESCALE((c2 - yi) * coeffs[3] + delta, yuv_shift) : CV_DESCALE((c0 - yi) * coeffs[3] + delta, yuv_shift);
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const int2 vi = (bidx == 0) ? CV_DESCALE((c0 - yi) * coeffs[4] + delta, yuv_shift) : CV_DESCALE((c2 - yi) * coeffs[4] + delta, yuv_shift);
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const int2 yi = (bidx == 0) ? CV_DESCALE(c0 * coeffs[0] + c1 * coeffs[1] + c2 * coeffs[2], yuv_shift) : CV_DESCALE(c0 * coeffs[2] + c1 * coeffs[1] + c2 * coeffs[0], yuv_shift);
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const int2 ui = (bidx == 0) ? CV_DESCALE((c0 - yi) * coeffs[3] + delta, yuv_shift) : CV_DESCALE((c2 - yi) * coeffs[3] + delta, yuv_shift);
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const int2 vi = (bidx == 0) ? CV_DESCALE((c2 - yi) * coeffs[4] + delta, yuv_shift) : CV_DESCALE((c0 - yi) * coeffs[4] + delta, yuv_shift);
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const VECTOR2 Y = SAT_CAST2(yi);
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const VECTOR2 U = SAT_CAST2(ui);
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const VECTOR2 V = SAT_CAST2(vi);
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#endif
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vstore8((VECTOR8)(Y.s0, U.s0, V.s0, 0, Y.s1, U.s1, V.s1, 0), 0, dst_ptr);
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//sic! store channels as YVU, not YUV
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vstore8((VECTOR8)(Y.s0, V.s0, U.s0, 0, Y.s1, V.s1, U.s1, 0), 0, dst_ptr);
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}
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#elif (4 == pixels_per_work_item)
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{
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@@ -302,23 +335,23 @@ __kernel void RGB2YUV(int cols, int rows, int src_step, int dst_step,
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const int4 c1 = convert_int4(r0.s159d);
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const int4 c2 = convert_int4(r0.s26ae);
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const int4 yi = (bidx == 0) ? CV_DESCALE(c0 * coeffs[2] + c1 * coeffs[1] + c2 * coeffs[0], yuv_shift) : CV_DESCALE(c0 * coeffs[0] + c1 * coeffs[1] + c2 * coeffs[2], yuv_shift);
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const int4 ui = (bidx == 0) ? CV_DESCALE((c2 - yi) * coeffs[3] + delta, yuv_shift) : CV_DESCALE((c0 - yi) * coeffs[3] + delta, yuv_shift);
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const int4 vi = (bidx == 0) ? CV_DESCALE((c0 - yi) * coeffs[4] + delta, yuv_shift) : CV_DESCALE((c2 - yi) * coeffs[4] + delta, yuv_shift);
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const int4 yi = (bidx == 0) ? CV_DESCALE(c0 * coeffs[0] + c1 * coeffs[1] + c2 * coeffs[2], yuv_shift) : CV_DESCALE(c0 * coeffs[2] + c1 * coeffs[1] + c2 * coeffs[0], yuv_shift);
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const int4 ui = (bidx == 0) ? CV_DESCALE((c0 - yi) * coeffs[3] + delta, yuv_shift) : CV_DESCALE((c2 - yi) * coeffs[3] + delta, yuv_shift);
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const int4 vi = (bidx == 0) ? CV_DESCALE((c2 - yi) * coeffs[4] + delta, yuv_shift) : CV_DESCALE((c0 - yi) * coeffs[4] + delta, yuv_shift);
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const VECTOR4 Y = SAT_CAST4(yi);
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const VECTOR4 U = SAT_CAST4(ui);
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const VECTOR4 V = SAT_CAST4(vi);
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vstore16((VECTOR16)(Y.s0, U.s0, V.s0, 0, Y.s1, U.s1, V.s1, 0, Y.s2, U.s2, V.s2, 0, Y.s3, U.s3, V.s3, 0), 0, dst_ptr);
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//sic! store channels as YVU, not YUV
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vstore16((VECTOR16)(Y.s0, V.s0, U.s0, 0, Y.s1, V.s1, U.s1, 0, Y.s2, V.s2, U.s2, 0, Y.s3, V.s3, U.s3, 0), 0, dst_ptr);
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#endif
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}
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#endif //pixels_per_work_item
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}
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}
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__constant float c_YUV2RGBCoeffs_f[5] = { 2.032f, -0.395f, -0.581f, 1.140f };
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__constant int c_YUV2RGBCoeffs_i[5] = { 33292, -6472, -9519, 18678 };
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__constant float c_YUV2RGBCoeffs_f[5] = { U2BF, U2GF, V2GF, V2RF };
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__constant int c_YUV2RGBCoeffs_i[5] = { U2BI, U2GI, V2GI, V2RI };
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__kernel void YUV2RGB(int cols, int rows, int src_step, int dst_step,
|
||||
__global const DATA_TYPE* src, __global DATA_TYPE* dst,
|
||||
@@ -344,16 +377,17 @@ __kernel void YUV2RGB(int cols, int rows, int src_step, int dst_step,
|
||||
|
||||
#if (1 == pixels_per_work_item)
|
||||
{
|
||||
const DATA_TYPE yuv[] = {src_ptr[0], src_ptr[1], src_ptr[2]};
|
||||
//sic! channels stored as YVU, not YUV
|
||||
const DATA_TYPE yuv[] = {src_ptr[0], src_ptr[2], src_ptr[1]};
|
||||
|
||||
#ifdef DEPTH_5
|
||||
float B = yuv[0] + (yuv[2] - HALF_MAX) * coeffs[3];
|
||||
float G = yuv[0] + (yuv[2] - HALF_MAX) * coeffs[2] + (yuv[1] - HALF_MAX) * coeffs[1];
|
||||
float R = yuv[0] + (yuv[1] - HALF_MAX) * coeffs[0];
|
||||
float B = yuv[0] + (yuv[1] - HALF_MAX) * coeffs[0];
|
||||
float G = yuv[0] + (yuv[1] - HALF_MAX) * coeffs[1] + (yuv[2] - HALF_MAX) * coeffs[2];
|
||||
float R = yuv[0] + (yuv[2] - HALF_MAX) * coeffs[3];
|
||||
#else
|
||||
int B = yuv[0] + CV_DESCALE((yuv[2] - HALF_MAX) * coeffs[3], yuv_shift);
|
||||
int G = yuv[0] + CV_DESCALE((yuv[2] - HALF_MAX) * coeffs[2] + (yuv[1] - HALF_MAX) * coeffs[1], yuv_shift);
|
||||
int R = yuv[0] + CV_DESCALE((yuv[1] - HALF_MAX) * coeffs[0], yuv_shift);
|
||||
int B = yuv[0] + CV_DESCALE((yuv[1] - HALF_MAX) * coeffs[0], yuv_shift);
|
||||
int G = yuv[0] + CV_DESCALE((yuv[1] - HALF_MAX) * coeffs[1] + (yuv[2] - HALF_MAX) * coeffs[2], yuv_shift);
|
||||
int R = yuv[0] + CV_DESCALE((yuv[2] - HALF_MAX) * coeffs[3], yuv_shift);
|
||||
#endif
|
||||
|
||||
dst_ptr[bidx] = SAT_CAST( B );
|
||||
@@ -368,21 +402,23 @@ __kernel void YUV2RGB(int cols, int rows, int src_step, int dst_step,
|
||||
const VECTOR8 r0 = vload8(0, src_ptr);
|
||||
|
||||
#ifdef DEPTH_5
|
||||
//sic! channels stored as YVU, not YUV
|
||||
const float2 Y = r0.s04;
|
||||
const float2 U = r0.s15;
|
||||
const float2 V = r0.s26;
|
||||
const float2 U = r0.s26;
|
||||
const float2 V = r0.s15;
|
||||
|
||||
const float2 c0 = (bidx == 0) ? (Y + (V - HALF_MAX) * coeffs[3]) : (Y + (U - HALF_MAX) * coeffs[0]);
|
||||
const float2 c0 = (bidx != 0) ? (Y + (V - HALF_MAX) * coeffs[3]) : (Y + (U - HALF_MAX) * coeffs[0]);
|
||||
const float2 c1 = Y + (V - HALF_MAX) * coeffs[2] + (U - HALF_MAX) * coeffs[1];
|
||||
const float2 c2 = (bidx == 0) ? (Y + (U - HALF_MAX) * coeffs[0]) : (Y + (V - HALF_MAX) * coeffs[3]);
|
||||
const float2 c2 = (bidx != 0) ? (Y + (U - HALF_MAX) * coeffs[0]) : (Y + (V - HALF_MAX) * coeffs[3]);
|
||||
#else
|
||||
//sic! channels stored as YVU, not YUV
|
||||
const int2 Y = convert_int2(r0.s04);
|
||||
const int2 U = convert_int2(r0.s15);
|
||||
const int2 V = convert_int2(r0.s26);
|
||||
const int2 U = convert_int2(r0.s26);
|
||||
const int2 V = convert_int2(r0.s15);
|
||||
|
||||
const int2 c0i = (bidx == 0) ? (Y + CV_DESCALE((V - HALF_MAX) * coeffs[3], yuv_shift)) : (Y + CV_DESCALE((U - HALF_MAX) * coeffs[0], yuv_shift));
|
||||
const int2 c0i = (bidx != 0) ? (Y + CV_DESCALE((V - HALF_MAX) * coeffs[3], yuv_shift)) : (Y + CV_DESCALE((U - HALF_MAX) * coeffs[0], yuv_shift));
|
||||
const int2 c1i = Y + CV_DESCALE((V - HALF_MAX) * coeffs[2] + (U - HALF_MAX) * coeffs[1], yuv_shift);
|
||||
const int2 c2i = (bidx == 0) ? (Y + CV_DESCALE((U - HALF_MAX) * coeffs[0], yuv_shift)) : (Y + CV_DESCALE((V - HALF_MAX) * coeffs[3], yuv_shift));
|
||||
const int2 c2i = (bidx != 0) ? (Y + CV_DESCALE((U - HALF_MAX) * coeffs[0], yuv_shift)) : (Y + CV_DESCALE((V - HALF_MAX) * coeffs[3], yuv_shift));
|
||||
|
||||
const VECTOR2 c0 = SAT_CAST2(c0i);
|
||||
const VECTOR2 c1 = SAT_CAST2(c1i);
|
||||
@@ -400,13 +436,14 @@ __kernel void YUV2RGB(int cols, int rows, int src_step, int dst_step,
|
||||
#ifndef DEPTH_5
|
||||
const VECTOR16 r0 = vload16(0, src_ptr);
|
||||
|
||||
//sic! channels stored as YVU, not YUV
|
||||
const int4 Y = convert_int4(r0.s048c);
|
||||
const int4 U = convert_int4(r0.s159d);
|
||||
const int4 V = convert_int4(r0.s26ae);
|
||||
const int4 U = convert_int4(r0.s26ae);
|
||||
const int4 V = convert_int4(r0.s159d);
|
||||
|
||||
const int4 c0i = (bidx == 0) ? (Y + CV_DESCALE((V - HALF_MAX) * coeffs[3], yuv_shift)) : (Y + CV_DESCALE((U - HALF_MAX) * coeffs[0], yuv_shift));
|
||||
const int4 c0i = (bidx != 0) ? (Y + CV_DESCALE((V - HALF_MAX) * coeffs[3], yuv_shift)) : (Y + CV_DESCALE((U - HALF_MAX) * coeffs[0], yuv_shift));
|
||||
const int4 c1i = Y + CV_DESCALE((V - HALF_MAX) * coeffs[2] + (U - HALF_MAX) * coeffs[1], yuv_shift);
|
||||
const int4 c2i = (bidx == 0) ? (Y + CV_DESCALE((U - HALF_MAX) * coeffs[0], yuv_shift)) : (Y + CV_DESCALE((V - HALF_MAX) * coeffs[3], yuv_shift));
|
||||
const int4 c2i = (bidx != 0) ? (Y + CV_DESCALE((U - HALF_MAX) * coeffs[0], yuv_shift)) : (Y + CV_DESCALE((V - HALF_MAX) * coeffs[3], yuv_shift));
|
||||
|
||||
const VECTOR4 c0 = SAT_CAST4(c0i);
|
||||
const VECTOR4 c1 = SAT_CAST4(c1i);
|
||||
@@ -484,8 +521,8 @@ __kernel void YUV2RGBA_NV12(int cols, int rows, int src_step, int dst_step,
|
||||
|
||||
///////////////////////////////////// RGB <-> YCrCb //////////////////////////////////////
|
||||
|
||||
__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};
|
||||
__constant float c_RGB2YCrCbCoeffs_f[5] = {R2YF, G2YF, B2YF, YCRF, YCBF};
|
||||
__constant int c_RGB2YCrCbCoeffs_i[5] = {R2Y, G2Y, B2Y, YCRI, YCBI};
|
||||
|
||||
__kernel void RGB2YCrCb(int cols, int rows, int src_step, int dst_step,
|
||||
__global const DATA_TYPE* src, __global DATA_TYPE* dst,
|
||||
@@ -579,8 +616,8 @@ __kernel void RGB2YCrCb(int cols, int rows, int src_step, int dst_step,
|
||||
}
|
||||
}
|
||||
|
||||
__constant float c_YCrCb2RGBCoeffs_f[4] = { 1.403f, -0.714f, -0.344f, 1.773f };
|
||||
__constant int c_YCrCb2RGBCoeffs_i[4] = { 22987, -11698, -5636, 29049 };
|
||||
__constant float c_YCrCb2RGBCoeffs_f[4] = { CR2RF, CR2GF, CB2GF, CB2BF };
|
||||
__constant int c_YCrCb2RGBCoeffs_i[4] = { CR2RI, CR2GI, CB2GI, CB2BI };
|
||||
|
||||
__kernel void YCrCb2RGB(int cols, int rows, int src_step, int dst_step,
|
||||
__global const DATA_TYPE* src, __global DATA_TYPE* dst,
|
||||
|
||||
Reference in New Issue
Block a user