mirror of
https://github.com/wassname/scikit-image.git
synced 2026-06-29 03:04:42 +08:00
Andreas Mueller
32 lines
846 B
Python
32 lines
846 B
Python
import numpy as np
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from numpy.testing import *
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from skimage.transform import integral_image, integrate
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x = (np.random.random((50, 50)) * 255).astype(np.uint8)
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s = integral_image(x)
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def test_validity():
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y = np.arange(12).reshape((4, 3))
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y = (np.random.random((50, 50)) * 255).astype(np.uint8)
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assert_equal(integral_image(y)[-1, -1],
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y.sum())
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def test_basic():
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assert_equal(x[12:24, 10:20].sum(), integrate(s, 12, 10, 23, 19))
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assert_equal(x[:20, :20].sum(), integrate(s, 0, 0, 19, 19))
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assert_equal(x[:20, 10:20].sum(), integrate(s, 0, 10, 19, 19))
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assert_equal(x[10:20, :20].sum(), integrate(s, 10, 0, 19, 19))
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def test_single():
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assert_equal(x[0, 0], integrate(s, 0, 0, 0, 0))
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assert_equal(x[10, 10], integrate(s, 10, 10, 10, 10))
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if __name__ == '__main__':
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run_module_suite()
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