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fixed bug with partly uninitialized output of dft with DFT_COMPLEX_OUTPUT flag (bug #2223)

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This commit is contained in:
Vadim Pisarevsky
2012-10-11 00:53:43 +04:00
parent 63c9412922
commit 37ad10bf0d
2 changed files with 105 additions and 26 deletions
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35
modules/core/test/test_dxt.cpp
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@@ -827,4 +827,39 @@ TEST(Core_DCT, accuracy) { CxCore_DCTTest test; test.safe_run(); }
TEST(Core_DFT, accuracy) { CxCore_DFTTest test; test.safe_run(); }
TEST(Core_MulSpectrums, accuracy) { CxCore_MulSpectrumsTest test; test.safe_run(); }
class Core_DFTComplexOutputTest : public cvtest::BaseTest
{
public:
Core_DFTComplexOutputTest() {}
~Core_DFTComplexOutputTest() {}
protected:
void run(int)
{
RNG& rng = theRNG();
for( int i = 0; i < 10; i++ )
{
int m = rng.uniform(2, 11) & -2;
int n = rng.uniform(2, 11) & -2;
int depth = rng.uniform(0, 2) + CV_32F;
Mat src8u(m, n, depth), src(m, n, depth), dst(m, n, CV_MAKETYPE(depth, 2));
Mat z = Mat::zeros(m, n, depth), dstz;
randu(src8u, Scalar::all(0), Scalar::all(10));
src8u.convertTo(src, src.type());
dst = Scalar::all(123);
Mat mv[] = {src, z}, srcz;
merge(mv, 2, srcz);
dft(srcz, dstz);
dft(src, dst, DFT_COMPLEX_OUTPUT);
if(norm(dst, dstz, NORM_INF) > 1e-3)
{
cout << "actual:\n" << dst << endl << endl;
cout << "reference:\n" << dstz << endl << endl;
CV_Error(CV_StsError, "");
}
}
}
};
TEST(Core_DFT, complex_output) { Core_DFTComplexOutputTest test; test.safe_run(); }