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Added implementation and test for the GPU version of subtract, multiply, divide, transpose, absdiff, threshold, compare, meanStdDev, norm, based on NPP.

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Vladislav Vinogradov
2010-09-13 14:30:09 +00:00
parent 88a7a8f567
commit 37d39bd9de
6 changed files with 706 additions and 194 deletions
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32
modules/gpu/include/opencv2/gpu/gpu.hpp
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@@ -204,6 +204,9 @@ namespace cv
template<typename _Tp> _Tp* ptr(int y=0);
template<typename _Tp> const _Tp* ptr(int y=0) const;
//! matrix transposition
GpuMat t() const;
/*! includes several bit-fields:
- the magic signature
- continuity flag
@@ -343,7 +346,34 @@ namespace cv
////////////////////////////// Arithmetics ///////////////////////////////////
CV_EXPORTS void add(const GpuMat& src1, const GpuMat& src2, GpuMat& dst);
//! adds one matrix to another (c = a + b)
CV_EXPORTS void add(const GpuMat& a, const GpuMat& b, GpuMat& c);
//! subtracts one matrix from another (c = a - b)
CV_EXPORTS void subtract(const GpuMat& a, const GpuMat& b, GpuMat& c);
//! computes element-wise product of the two arrays (c = a * b)
CV_EXPORTS void multiply(const GpuMat& a, const GpuMat& b, GpuMat& c);
//! computes element-wise quotient of the two arrays (c = a / b)
CV_EXPORTS void divide(const GpuMat& a, const GpuMat& b, GpuMat& c);
//! transposes the matrix
CV_EXPORTS void transpose(const GpuMat& src1, GpuMat& dst);
//! computes element-wise absolute difference of two arrays (c = abs(a - b))
CV_EXPORTS void absdiff(const GpuMat& a, const GpuMat& b, GpuMat& c);
//! applies fixed threshold to the image.
//! Now supports only THRESH_TRUNC threshold type and one channels float source.
CV_EXPORTS double threshold(const GpuMat& src, GpuMat& dst, double thresh, double maxVal, int thresholdType);
//! compares elements of two arrays (c = a <cmpop> b)
//! Now doesn't support CMP_NE.
CV_EXPORTS void compare(const GpuMat& a, const GpuMat& b, GpuMat& c, int cmpop);
//! computes mean value and standard deviation of all or selected array elements
CV_EXPORTS void meanStdDev(const GpuMat& mtx, Scalar& mean, Scalar& stddev);
CV_EXPORTS double norm(const GpuMat& src1, int normType=NORM_L2);
CV_EXPORTS double norm(const GpuMat& src1, const GpuMat& src2, int normType=NORM_L2);
////////////////////////////// Image processing //////////////////////////////
// DST[x,y] = SRC[xmap[x,y],ymap[x,y]] with bilinear interpolation.

7
modules/gpu/include/opencv2/gpu/matrix_operations.hpp
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@@ -335,6 +335,13 @@ template<typename _Tp> inline const _Tp* GpuMat::ptr(int y) const
return (const _Tp*)(data + step*y);
}
inline GpuMat GpuMat::t() const
{
GpuMat tmp;
transpose(*this, tmp);
return tmp;
}
static inline void swap( GpuMat& a, GpuMat& b ) { a.swap(b); }