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Merge pull request #1168 from ahojnnes/rot-center

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Add option to rotate around specific center. Closes gh-1166.
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Stefan van der Walt
2014-09-22 16:03:37 +02:00
parent b143eae02f 8432b90eb8
commit 97e4599e1c
2 changed files with 22 additions and 4 deletions
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skimage/transform/tests/test_warps.py
+11
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@@ -152,6 +152,17 @@ def test_rotate_resize():
assert x45.shape == (14, 14)
def test_rotate_center():
x = np.zeros((10, 10), dtype=np.double)
x[4, 4] = 1
refx = np.zeros((10, 10), dtype=np.double)
refx[2, 5] = 1
x20 = rotate(x, 20, order=0, center=(0, 0))
assert_array_almost_equal(x20, refx)
x0 = rotate(x20, -20, order=0, center=(0, 0))
assert_array_almost_equal(x0, x)
def test_rescale():
# same scale factor
x = np.zeros((5, 5), dtype=np.double)