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