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56 lines
1.8 KiB
Python
56 lines
1.8 KiB
Python
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from tester import *
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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("Images/lena.ppm")
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def test_ops_api():
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i = ImageOps.gaussian_blur(im, 2.0)
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assert_equal(i.mode, "RGB")
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assert_equal(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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assert_equal(i.mode, "RGB")
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assert_equal(i.size, (128, 128))
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# i.save("usm.bmp")
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def test_filter_api():
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filter = ImageFilter.GaussianBlur(2.0)
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i = im.filter(filter)
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assert_equal(i.mode, "RGB")
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assert_equal(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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assert_equal(i.mode, "RGB")
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assert_equal(i.size, (128, 128))
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def test_usm():
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usm = ImageOps.unsharp_mask
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assert_exception(ValueError, lambda: usm(im.convert("1")))
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assert_no_exception(lambda: usm(im.convert("L")))
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assert_exception(ValueError, lambda: usm(im.convert("I")))
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assert_exception(ValueError, lambda: usm(im.convert("F")))
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assert_no_exception(lambda: usm(im.convert("RGB")))
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assert_no_exception(lambda: usm(im.convert("RGBA")))
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assert_no_exception(lambda: usm(im.convert("CMYK")))
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assert_exception(ValueError, lambda: usm(im.convert("YCbCr")))
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def test_blur():
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blur = ImageOps.gaussian_blur
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assert_exception(ValueError, lambda: blur(im.convert("1")))
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assert_no_exception(lambda: blur(im.convert("L")))
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assert_exception(ValueError, lambda: blur(im.convert("I")))
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assert_exception(ValueError, lambda: blur(im.convert("F")))
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assert_no_exception(lambda: blur(im.convert("RGB")))
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assert_no_exception(lambda: blur(im.convert("RGBA")))
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assert_no_exception(lambda: blur(im.convert("CMYK")))
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assert_exception(ValueError, lambda: blur(im.convert("YCbCr")))
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