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28 lines
867 B
Python
28 lines
867 B
Python
from __future__ import annotations
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from PIL import Image
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from .helper import hopper
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def test_extrema() -> None:
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def extrema(mode: str) -> tuple[float, float] | tuple[tuple[int, int], ...]:
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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() -> None:
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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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