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57 lines
1.3 KiB
57 lines
1.3 KiB
// This file is part of OpenCV project. |
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// It is subject to the license terms in the LICENSE file found in the top-level directory |
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// of this distribution and at http://opencv.org/license.html. |
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#include "test_precomp.hpp" |
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namespace opencv_test { namespace { |
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static int createTestImage(Mat1b& src) |
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{ |
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src = Mat1b::zeros(Size(256, 256)); |
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// Create a corner point that should not be affected. |
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src(0, 0) = 255; |
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for (int x = 50; x < src.cols - 50; x += 50) |
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{ |
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cv::circle(src, Point(x, x/2), 30 + x/2, Scalar(255), 5); |
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} |
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int src_pixels = countNonZero(src); |
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EXPECT_GT(src_pixels, 0); |
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return src_pixels; |
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} |
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TEST(ximgproc_Thinning, simple_ZHANGSUEN) |
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{ |
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Mat1b src; |
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int src_pixels = createTestImage(src); |
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Mat1b dst; |
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thinning(src, dst, THINNING_ZHANGSUEN); |
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int dst_pixels = countNonZero(dst); |
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EXPECT_LE(dst_pixels, src_pixels); |
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EXPECT_EQ(dst(0, 0), 255); |
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#if 0 |
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imshow("src", src); imshow("dst", dst); waitKey(); |
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#endif |
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} |
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TEST(ximgproc_Thinning, simple_GUOHALL) |
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{ |
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Mat1b src; |
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int src_pixels = createTestImage(src); |
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Mat1b dst; |
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thinning(src, dst, THINNING_GUOHALL); |
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int dst_pixels = countNonZero(dst); |
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EXPECT_LE(dst_pixels, src_pixels); |
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EXPECT_EQ(dst(0, 0), 255); |
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#if 0 |
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imshow("src", src); imshow("dst", dst); waitKey(); |
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#endif |
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} |
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}} // namespace
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