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			26 lines
		
	
	
		
			757 B
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			26 lines
		
	
	
		
			757 B
		
	
	
	
		
			Python
		
	
	
	
	
	
from PIL import Image
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from .helper import hopper
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def test_extrema():
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    def extrema(mode):
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        return hopper(mode).getextrema()
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    assert extrema("1") == (0, 255)
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    assert extrema("L") == (1, 255)
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    assert extrema("I") == (1, 255)
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    assert extrema("F") == (1, 255)
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    assert extrema("P") == (0, 225)  # fixed palette
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    assert extrema("RGB") == ((0, 255), (0, 255), (0, 255))
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    assert extrema("RGBA") == ((0, 255), (0, 255), (0, 255), (255, 255))
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    assert extrema("CMYK") == ((0, 255), (0, 255), (0, 255), (0, 0))
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    assert extrema("I;16") == (1, 255)
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def test_true_16():
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    with Image.open("Tests/images/16_bit_noise.tif") as im:
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        assert im.mode == "I;16"
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        extrema = im.getextrema()
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    assert extrema == (106, 285)
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