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65 lines
1.9 KiB
Python
65 lines
1.9 KiB
Python
from helper import unittest, PillowTestCase
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from PIL import Image
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from PIL import ImageOps
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from PIL import ImageFilter
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im = Image.open("Tests/images/lena.ppm")
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class TestImageOpsUsm(PillowTestCase):
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def test_ops_api(self):
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i = ImageOps.gaussian_blur(im, 2.0)
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self.assertEqual(i.mode, "RGB")
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self.assertEqual(i.size, (128, 128))
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# i.save("blur.bmp")
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i = ImageOps.usm(im, 2.0, 125, 8)
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self.assertEqual(i.mode, "RGB")
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self.assertEqual(i.size, (128, 128))
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# i.save("usm.bmp")
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def test_filter_api(self):
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filter = ImageFilter.GaussianBlur(2.0)
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i = im.filter(filter)
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self.assertEqual(i.mode, "RGB")
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self.assertEqual(i.size, (128, 128))
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filter = ImageFilter.UnsharpMask(2.0, 125, 8)
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i = im.filter(filter)
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self.assertEqual(i.mode, "RGB")
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self.assertEqual(i.size, (128, 128))
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def test_usm(self):
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usm = ImageOps.unsharp_mask
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self.assertRaises(ValueError, lambda: usm(im.convert("1")))
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usm(im.convert("L"))
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self.assertRaises(ValueError, lambda: usm(im.convert("I")))
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self.assertRaises(ValueError, lambda: usm(im.convert("F")))
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usm(im.convert("RGB"))
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usm(im.convert("RGBA"))
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usm(im.convert("CMYK"))
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self.assertRaises(ValueError, lambda: usm(im.convert("YCbCr")))
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def test_blur(self):
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blur = ImageOps.gaussian_blur
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self.assertRaises(ValueError, lambda: blur(im.convert("1")))
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blur(im.convert("L"))
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self.assertRaises(ValueError, lambda: blur(im.convert("I")))
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self.assertRaises(ValueError, lambda: blur(im.convert("F")))
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blur(im.convert("RGB"))
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blur(im.convert("RGBA"))
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blur(im.convert("CMYK"))
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self.assertRaises(ValueError, lambda: blur(im.convert("YCbCr")))
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if __name__ == '__main__':
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unittest.main()
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# End of file
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