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added buffered version of gpu::convolve

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This commit is contained in:
Alexey Spizhevoy
2010-12-27 10:18:42 +00:00
parent e5d1b9eecd
commit be38864dd0
2 changed files with 100 additions and 46 deletions
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29
modules/gpu/include/opencv2/gpu/gpu.hpp
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@@ -656,7 +656,34 @@ namespace cv
//! computes convolution (or cross-correlation) of two images using discrete Fourier transform
//! supports source images of 32FC1 type only
//! result matrix will have 32FC1 type
CV_EXPORTS void convolve(const GpuMat& image, const GpuMat& templ, GpuMat& result, bool ccorr=false);
CV_EXPORTS void convolve(const GpuMat& image, const GpuMat& templ, GpuMat& result,
bool ccorr=false);
struct CV_EXPORTS ConvolveBuf;
//! buffered version
CV_EXPORTS void convolve(const GpuMat& image, const GpuMat& templ, GpuMat& result,
bool ccorr, ConvolveBuf& buf);
struct CV_EXPORTS ConvolveBuf
{
ConvolveBuf() {}
ConvolveBuf(Size image_size, Size templ_size)
{ create(image_size, templ_size); }
void create(Size image_size, Size templ_size);
private:
static Size estimateBlockSize(Size result_size, Size templ_size);
friend void convolve(const GpuMat&, const GpuMat&, GpuMat&, bool, ConvolveBuf&);
Size result_size;
Size block_size;
Size dft_size;
int spect_len;
GpuMat image_spect, templ_spect, result_spect;
GpuMat image_block, templ_block, result_data;
};
//! computes the proximity map for the raster template and the image where the template is searched for
CV_EXPORTS void matchTemplate(const GpuMat& image, const GpuMat& templ, GpuMat& result, int method);