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fixed a bug of CvMat#threshold_trunc, and added some tests

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ser1zw 2011-01-29 02:45:09 +09:00
parent 0344d933f1
commit d82a1506cc
3 changed files with 98 additions and 1 deletions
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1
.gitignore vendored
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@ -9,3 +9,4 @@ GPATH
GRTAGS
GSYMS
GTAGS
OpenCV-2.2.0

2
ext/cvmat.cpp
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@ -3879,7 +3879,7 @@ rb_threshold_trunc(int argc, VALUE *argv, VALUE self)
VALUE threshold, use_otsu, dest;
rb_scan_args(argc, argv, "11", &threshold, &use_otsu);
dest = cCvMat::new_object(cvGetSize(CVARR(self)), cvGetElemType(CVARR(self)));
cvThreshold(CVARR(self), CVARR(dest), NUM2DBL(threshold), 0, CV_THRESH_BINARY_INV | (use_otsu == Qtrue ? CV_THRESH_OTSU : 0));
cvThreshold(CVARR(self), CVARR(dest), NUM2DBL(threshold), 0, CV_THRESH_TRUNC | (use_otsu == Qtrue ? CV_THRESH_OTSU : 0));
return dest;
}

96
test/test_cvmat_imageprocessing.rb
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@ -737,5 +737,101 @@ class TestCvMat_imageprocessing < OpenCVTestCase
assert_equal('ecc7e69d110f9934fa31f8ec85b30275', hash_img(mat1))
end
def test_integral
mat0 = create_cvmat(3, 3, :cv8u, 1) { |j, i, n| CvScalar.new(n) }
sum, sqsum, tilted_sum = mat0.integral(true, true)
[sum, sqsum, tilted_sum].each { |s|
assert_equal(mat0.height + 1, s.height)
assert_equal(mat0.width + 1, s.width)
assert_equal(:cv64f, s.depth)
assert_equal(1, s.channel)
}
expected_sum = [0, 0, 0, 0,
0, 0, 1, 3,
0, 3, 8, 15,
0, 9, 21, 36]
expected_sum.each_with_index { |x, i|
assert_in_delta(x, sum[i][0], 0.001)
}
expected_sqsum = [0, 0, 0, 0,
0, 0, 1, 5,
0, 9, 26, 55,
0, 45, 111, 204]
expected_sqsum.each_with_index { |x, i|
assert_in_delta(x, sqsum[i][0], 0.001)
}
expected_tilted_sum = [0, 0, 0, 0,
0, 0, 1, 2,
0, 4, 7, 8,
4, 16, 22, 20]
expected_tilted_sum.each_with_index { |x, i|
assert_in_delta(x, tilted_sum[i][0], 0.001)
}
end
def test_threshold_binary
mat0 = create_cvmat(3, 3, :cv8u, 1) { |j, i, n| CvScalar.new(n) }
mat1 = mat0.threshold_binary(3, 7)
expected = [0, 0, 0,
0, 7, 7,
7, 7, 7]
expected.each_with_index { |x, i|
assert_equal(x, mat1[i][0])
}
flunk('FIXME: Cases of CV_THRESH_OTSU are not tested yet.')
end
def test_threshold_binary_inverse
mat0 = create_cvmat(3, 3, :cv8u, 1) { |j, i, n| CvScalar.new(n) }
mat1 = mat0.threshold_binary_inverse(3, 7)
expected = [7, 7, 7,
7, 0, 0,
0, 0, 0]
expected.each_with_index { |x, i|
assert_equal(x, mat1[i][0])
}
flunk('FIXME: Cases of CV_THRESH_OTSU are not tested yet.')
end
def test_threshold_trunc
mat0 = create_cvmat(3, 3, :cv8u, 1) { |j, i, n| CvScalar.new(n) }
mat1 = mat0.threshold_trunc(3)
expected = [0, 1, 2,
3, 3, 3,
3, 3, 3]
expected.each_with_index { |x, i|
assert_equal(x, mat1[i][0])
}
flunk('FIXME: Cases of CV_THRESH_OTSU are not tested yet.')
end
def test_threshold_to_zero
mat0 = create_cvmat(3, 3, :cv8u, 1) { |j, i, n| CvScalar.new(n) }
mat1 = mat0.threshold_to_zero(3)
expected = [0, 0, 0,
0, 4, 5,
6, 7, 8]
expected.each_with_index { |x, i|
assert_equal(x, mat1[i][0])
}
flunk('FIXME: Cases of CV_THRESH_OTSU are not tested yet.')
end
def test_threshold_to_zero_inverse
mat0 = create_cvmat(3, 3, :cv8u, 1) { |j, i, n| CvScalar.new(n) }
mat1 = mat0.threshold_to_zero_inverse(3)
expected = [0, 1, 2,
3, 0, 0,
0, 0, 0]
expected.each_with_index { |x, i|
assert_equal(x, mat1[i][0])
}
flunk('FIXME: Cases of CV_THRESH_OTSU are not tested yet.')
end
end