shape: force column-based vector

modules/python/test/test_shape.py

@@ -0,0 +1,23 @@
+#!/usr/bin/env python
+import cv2
+
+from tests_common import NewOpenCVTests
+
+class shape_test(NewOpenCVTests):
+
+    def test_computeDistance(self):
+
+        a = self.get_sample('samples/data/shape_sample/1.png', cv2.IMREAD_GRAYSCALE);
+        b = self.get_sample('samples/data/shape_sample/2.png', cv2.IMREAD_GRAYSCALE);
+
+        _, ca, _ = cv2.findContours(a, cv2.RETR_CCOMP, cv2.CHAIN_APPROX_TC89_KCOS)
+        _, cb, _ = cv2.findContours(b, cv2.RETR_CCOMP, cv2.CHAIN_APPROX_TC89_KCOS)
+
+        hd = cv2.createHausdorffDistanceExtractor()
+        sd = cv2.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")