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test_radon_transform: Change test criterion for iradon_minimal.

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Jostein Bø Fløystad
2013-06-23 12:48:13 +02:00
parent afaab4fea7
commit 934f1040ad
1 changed files with 11 additions and 8 deletions
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skimage/transform/tests/test_radon_transform.py
+11 -8
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@@ -177,17 +177,20 @@ def check_radon_iradon_minimal(shape, slices):
reconstructed = iradon(sinogram, theta)
print('\n\tMaximum deviation:', np.max(np.abs(image - reconstructed)))
if debug:
_debug_plot(image, reconstructed)
assert np.allclose(image, reconstructed, rtol=1e-1, atol=1e-1)
_debug_plot(image, reconstructed, sinogram)
if image.sum() == 1:
assert (np.unravel_index(np.argmax(reconstructed), image.shape)
== np.unravel_index(np.argmax(image), image.shape))
def test_radon_iradon_minimal():
# Each testcase is a (image shape, slice of image to set to one) tuple
testcases = [((3, 3), np.s_[1, 1]),
((4, 4), np.s_[1:3, 1:3]),
((5, 5), np.s_[1:3, 1:3])]
for shape, slices in testcases:
yield check_radon_iradon_minimal, shape, slices
shapes = [(3, 3), (4, 4), (5, 5)]
for shape in shapes:
c0, c1 = shape[0] // 2, shape[1] // 2
coordinates = itertools.product((c0 - 1, c0, c0 + 1),
(c1 - 1, c1, c1 + 1))
for coordinate in coordinates:
yield check_radon_iradon_minimal, shape, coordinate
def test_reconstruct_with_wrong_angles():