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optimized gpu pyrDown and pyrUp

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This commit is contained in:
Vladislav Vinogradov
2011-08-24 11:16:42 +00:00
parent 3a3bc18381
commit 173ac5a64b
8 changed files with 714 additions and 160 deletions
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38
modules/gpu/include/opencv2/gpu/gpu.hpp
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@@ -762,48 +762,10 @@ namespace cv
//! smoothes the source image and downsamples it
CV_EXPORTS void pyrDown(const GpuMat& src, GpuMat& dst, Stream& stream = Stream::Null());
struct CV_EXPORTS PyrDownBuf;
CV_EXPORTS void pyrDown(const GpuMat& src, GpuMat& dst, PyrDownBuf& buf, Stream& stream = Stream::Null());
struct CV_EXPORTS PyrDownBuf
{
PyrDownBuf() : image_type(-1) {}
PyrDownBuf(Size image_size, int image_type_) : image_type(-1) { create(image_size, image_type_); }
void create(Size image_size, int image_type_);
private:
friend void pyrDown(const GpuMat&, GpuMat&, PyrDownBuf&, Stream& stream);
static Mat ker;
GpuMat buf;
Ptr<FilterEngine_GPU> filter;
int image_type;
};
//! upsamples the source image and then smoothes it
CV_EXPORTS void pyrUp(const GpuMat& src, GpuMat& dst, Stream& stream = Stream::Null());
struct CV_EXPORTS PyrUpBuf;
CV_EXPORTS void pyrUp(const GpuMat& src, GpuMat& dst, PyrUpBuf& buf, Stream& stream = Stream::Null());
struct CV_EXPORTS PyrUpBuf
{
PyrUpBuf() : image_type(-1) {}
PyrUpBuf(Size image_size, int image_type_) : image_type(-1) { create(image_size, image_type_); }
void create(Size image_size, int image_type_);
private:
friend void pyrUp(const GpuMat&, GpuMat&, PyrUpBuf&, Stream& stream);
static Mat ker;
GpuMat buf;
Ptr<FilterEngine_GPU> filter;
int image_type;
};
//! performs linear blending of two images
//! to avoid accuracy errors sum of weigths shouldn't be very close to zero
CV_EXPORTS void blendLinear(const GpuMat& img1, const GpuMat& img2, const GpuMat& weights1, const GpuMat& weights2,