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18 lines
773 B
Python
18 lines
773 B
Python
from .helper import PillowTestCase, hopper
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class TestImageEntropy(PillowTestCase):
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def test_entropy(self):
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def entropy(mode):
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return hopper(mode).entropy()
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self.assertAlmostEqual(entropy("1"), 0.9138803254693582)
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self.assertAlmostEqual(entropy("L"), 7.063008716585465)
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self.assertAlmostEqual(entropy("I"), 7.063008716585465)
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self.assertAlmostEqual(entropy("F"), 7.063008716585465)
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self.assertAlmostEqual(entropy("P"), 5.0530452472519745)
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self.assertAlmostEqual(entropy("RGB"), 8.821286587714319)
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self.assertAlmostEqual(entropy("RGBA"), 7.42724306524488)
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self.assertAlmostEqual(entropy("CMYK"), 7.4272430652448795)
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self.assertAlmostEqual(entropy("YCbCr"), 7.698360534903628)
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