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Merge pull request #11965 from alalek:issue_11944

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This commit is contained in:
Alexander Alekhin 2018-07-16 09:48:33 +00:00
commit 4a3dfffd46
2 changed files with 9 additions and 4 deletions
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8
modules/imgproc/perf/perf_warp.cpp
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@ -271,7 +271,7 @@ void update_map(const Mat& src, Mat& map_x, Mat& map_y, const int remapMode )
}
}
PERF_TEST(Transform, getPerspectiveTransform)
PERF_TEST(Transform, getPerspectiveTransform_1000)
{
unsigned int size = 8;
Mat source(1, size/2, CV_32FC2);
@ -280,12 +280,14 @@ PERF_TEST(Transform, getPerspectiveTransform)
declare.in(source, destination, WARMUP_RNG);
TEST_CYCLE()
PERF_SAMPLE_BEGIN()
for (int i = 0; i < 1000; i++)
{
transformCoefficient = getPerspectiveTransform(source, destination);
}
PERF_SAMPLE_END()
SANITY_CHECK(transformCoefficient, 1e-5);
SANITY_CHECK_NOTHING();
}
} // namespace

5
modules/imgproc/src/imgwarp.cpp
View File

@ -50,6 +50,7 @@
#include "precomp.hpp"
#include "opencl_kernels_imgproc.hpp"
#include "hal_replacement.hpp"
#include <opencv2/core/utils/configuration.private.hpp>
#include "opencv2/core/hal/intrin.hpp"
#include "opencv2/core/openvx/ovx_defs.hpp"
#include "opencv2/core/softfloat.hpp"
@ -3061,7 +3062,9 @@ cv::Mat cv::getPerspectiveTransform( const Point2f src[], const Point2f dst[] )
b[i+4] = dst[i].y;
}
solve( A, B, X, DECOMP_SVD );
static int param_IMGPROC_GETPERSPECTIVETRANSFORM_SOLVE_METHOD =
(int)utils::getConfigurationParameterSizeT("OPENCV_IMGPROC_GETPERSPECTIVETRANSFORM_SOLVE_METHOD", (size_t)DECOMP_LU);
solve(A, B, X, param_IMGPROC_GETPERSPECTIVETRANSFORM_SOLVE_METHOD);
M.ptr<double>()[8] = 1.;
return M;