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added test for http://code.opencv.org/issues/2736

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This commit is contained in:
Vadim Pisarevsky 2015-05-13 22:16:35 +03:00
parent 71002e0e79
commit d3b0cb878a
1 changed files with 34 additions and 0 deletions
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34
modules/imgproc/test/test_filter.cpp
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@ -1918,3 +1918,37 @@ TEST(Imgproc_Blur, borderTypes)
EXPECT_EQ(expected_dst.size(), dst.size());
EXPECT_DOUBLE_EQ(0.0, cvtest::norm(expected_dst, dst, NORM_INF));
}
TEST(Imgproc_Morphology, iterated)
{
RNG& rng = theRNG();
for( int iter = 0; iter < 30; iter++ )
{
int width = rng.uniform(5, 33);
int height = rng.uniform(5, 33);
int cn = rng.uniform(1, 5);
int iterations = rng.uniform(1, 11);
int op = rng.uniform(0, 2);
Mat src(height, width, CV_8UC(cn)), dst0, dst1, dst2;
randu(src, 0, 256);
if( op == 0 )
dilate(src, dst0, Mat(), Point(-1,-1), iterations);
else
erode(src, dst0, Mat(), Point(-1,-1), iterations);
for( int i = 0; i < iterations; i++ )
if( op == 0 )
dilate(i == 0 ? src : dst1, dst1, Mat(), Point(-1,-1), 1);
else
erode(i == 0 ? src : dst1, dst1, Mat(), Point(-1,-1), 1);
Mat kern = getStructuringElement(MORPH_RECT, Size(3,3));
if( op == 0 )
dilate(src, dst2, kern, Point(-1,-1), iterations);
else
erode(src, dst2, kern, Point(-1,-1), iterations);
ASSERT_EQ(0.0, norm(dst0, dst1, NORM_INF));
ASSERT_EQ(0.0, norm(dst0, dst2, NORM_INF));
}
}