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Add test for negative input image

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Johannes Schönberger
2013-11-22 12:30:49 +01:00
parent 8c734eaccb
commit 0a2ed35253
1 changed files with 6 additions and 1 deletions
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skimage/exposure/tests/test_exposure.py
+6 -1
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@@ -2,7 +2,7 @@ import warnings
import numpy as np
from numpy.testing import assert_array_almost_equal as assert_close
from numpy.testing import assert_array_equal
from numpy.testing import assert_array_equal, assert_raises
import skimage
from skimage import data
from skimage import exposure
@@ -336,3 +336,8 @@ def test_adjust_inv_sigmoid_cutoff_half():
result = exposure.adjust_sigmoid(image, 0.5, 10, True)
assert_array_equal(result, expected)
def test_neggative():
image = np.arange(-10, 245, 4).reshape(8, 8).astype(np.double)
assert_raises(ValueError, exposure.adjust_gamma, image)