mirror/opencv
1
0
Fork 0
mirror of https://github.com/opencv/opencv.git synced 2025-06-11 11:45:30 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

Make test_texture_flow.py more robust

Browse Source
This commit is contained in:
Vladislav Sovrasov 2016-09-21 17:11:00 +03:00
parent cd6e7ac46e
commit ae28345ca5
1 changed files with 7 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
modules/python/test/test_texture_flow.py
View File

@ -21,31 +21,24 @@ class texture_flow_test(NewOpenCVTests):
def test_texture_flow(self):
img = self.get_sample('samples/data/pic6.png')
img = self.get_sample('samples/data/chessboard.png')
gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
h, w = img.shape[:2]
eigen = cv2.cornerEigenValsAndVecs(gray, 15, 3)
eigen = cv2.cornerEigenValsAndVecs(gray, 5, 3)
eigen = eigen.reshape(h, w, 3, 2) # [[e1, e2], v1, v2]
flow = eigen[:,:,2]
vis = img.copy()
vis[:] = (192 + np.uint32(vis)) / 2
d = 80
d = 300
eps = d / 30
points = np.dstack( np.mgrid[d/2:w:d, d/2:h:d] ).reshape(-1, 2)
textureVectors = []
for x, y in np.int32(points):
textureVectors.append(np.int32(flow[y, x]*d))
eps = 0.05
testTextureVectors = [[0, 0], [0, 0], [0, 0], [0, 0], [0, 0],
[-38, 70], [-79, 3], [0, 0], [0, 0], [-39, 69], [-79, -1],
[0, 0], [0, 0], [0, -79], [17, -78], [-48, -63], [65, -46],
[-69, -39], [-48, -63], [-45, 66]]
for i in range(len(textureVectors)):
self.assertLessEqual(cv2.norm(textureVectors[i] - testTextureVectors[i], cv2.NORM_L2), eps)
self.assertTrue(cv2.norm(textureVectors[i], cv2.NORM_L2) < eps
or abs(cv2.norm(textureVectors[i], cv2.NORM_L2) - d) < eps)