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38 lines
1.2 KiB
Python
38 lines
1.2 KiB
Python
#!/usr/bin/env python
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# Python 2/3 compatibility
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from __future__ import print_function
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import os
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import cv2 as cv
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from tests_common import NewOpenCVTests
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SCRIPT_DIR = os.path.dirname(os.path.abspath(__file__))
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MODULE_DIR = os.path.join(SCRIPT_DIR, '../../../')
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class shape_test(NewOpenCVTests):
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def test_computeDistance(self):
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a = cv.imread(os.path.join(MODULE_DIR, 'samples/data/shape_sample/1.png'), cv.IMREAD_GRAYSCALE)
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b = cv.imread(os.path.join(MODULE_DIR, 'samples/data/shape_sample/2.png'), cv.IMREAD_GRAYSCALE)
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if a is None or b is None:
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raise unittest.SkipTest("Missing files with test data")
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ca, _ = cv.findContours(a, cv.RETR_CCOMP, cv.CHAIN_APPROX_TC89_KCOS)
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cb, _ = cv.findContours(b, cv.RETR_CCOMP, cv.CHAIN_APPROX_TC89_KCOS)
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hd = cv.createHausdorffDistanceExtractor()
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sd = cv.createShapeContextDistanceExtractor()
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d1 = hd.computeDistance(ca[0], cb[0])
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d2 = sd.computeDistance(ca[0], cb[0])
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self.assertAlmostEqual(d1, 26.4196891785, 3, "HausdorffDistanceExtractor")
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self.assertAlmostEqual(d2, 0.25804194808, 3, "ShapeContextDistanceExtractor")
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if __name__ == '__main__':
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NewOpenCVTests.bootstrap()
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