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implemented gpu::norm via absSum, sqrSum, and minMax (removed norm_diff call), added support of other data types

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This commit is contained in:
Alexey Spizhevoy
2011-02-01 10:23:10 +00:00
parent 566d19d7a7
commit 3795142604
3 changed files with 91 additions and 4 deletions
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20
modules/gpu/src/matrix_reductions.cpp
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@@ -86,9 +86,25 @@ void cv::gpu::meanStdDev(const GpuMat& src, Scalar& mean, Scalar& stddev)
////////////////////////////////////////////////////////////////////////
// norm
double cv::gpu::norm(const GpuMat& src1, int normType)
double cv::gpu::norm(const GpuMat& src, int normType)
{
return norm(src1, GpuMat(src1.size(), src1.type(), Scalar::all(0.0)), normType);
GpuMat src_single_channel = src.reshape(1);
if (normType == NORM_L1)
return absSum(src_single_channel)[0];
if (normType == NORM_L2)
return sqrt(sqrSum(src_single_channel)[0]);
if (normType == NORM_INF)
{
double min_val, max_val;
minMax(src_single_channel, &min_val, &max_val);
return std::max(std::abs(min_val), std::abs(max_val));
}
CV_Error(CV_StsBadArg, "norm: unsupported norm type");
return 0;
}
double cv::gpu::norm(const GpuMat& src1, const GpuMat& src2, int normType)