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optimized version of histEven for CV_8UC1

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This commit is contained in:
Vladislav Vinogradov
2013-08-01 16:51:52 +04:00
parent bfca1afd9e
commit a28cb99e88
3 changed files with 98 additions and 3 deletions
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17
modules/gpu/src/imgproc.cpp
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@@ -889,6 +889,21 @@ void cv::gpu::histEven(const GpuMat& src, GpuMat& hist, int histSize, int lowerL
histEven(src, hist, buf, histSize, lowerLevel, upperLevel, stream);
}
namespace hist
{
void histEven8u(PtrStepSzb src, int* hist, int binCount, int lowerLevel, int upperLevel, cudaStream_t stream);
}
namespace
{
void histEven8u(const GpuMat& src, GpuMat& hist, GpuMat&, int histSize, int lowerLevel, int upperLevel, cudaStream_t stream)
{
hist.create(1, histSize, CV_32S);
cudaSafeCall( cudaMemsetAsync(hist.data, 0, histSize * sizeof(int), stream) );
hist::histEven8u(src, hist.ptr<int>(), histSize, lowerLevel, upperLevel, stream);
}
}
void cv::gpu::histEven(const GpuMat& src, GpuMat& hist, GpuMat& buf, int histSize, int lowerLevel, int upperLevel, Stream& stream)
{
CV_Assert(src.type() == CV_8UC1 || src.type() == CV_16UC1 || src.type() == CV_16SC1 );
@@ -896,7 +911,7 @@ void cv::gpu::histEven(const GpuMat& src, GpuMat& hist, GpuMat& buf, int histSiz
typedef void (*hist_t)(const GpuMat& src, GpuMat& hist, GpuMat& buf, int levels, int lowerLevel, int upperLevel, cudaStream_t stream);
static const hist_t hist_callers[] =
{
NppHistogramEvenC1<CV_8U , nppiHistogramEven_8u_C1R , nppiHistogramEvenGetBufferSize_8u_C1R >::hist,
histEven8u,
0,
NppHistogramEvenC1<CV_16U, nppiHistogramEven_16u_C1R, nppiHistogramEvenGetBufferSize_16u_C1R>::hist,
NppHistogramEvenC1<CV_16S, nppiHistogramEven_16s_C1R, nppiHistogramEvenGetBufferSize_16s_C1R>::hist