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Return LUT from LutBuilder build_default_lut() (#9350)

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Andrew Murray 2025-12-29 08:03:47 +11:00 committed by GitHub
parent faa843e9c2
commit a04c9806b1
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2 changed files with 7 additions and 1 deletions
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5
Tests/test_imagemorph.py
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@ -281,6 +281,11 @@ def test_pattern_syntax_error(pattern: str) -> None:
lb.build_lut()
def test_build_default_lut() -> None:
lb = ImageMorph.LutBuilder(op_name="corner")
assert lb.build_default_lut() == lb.lut
def test_load_invalid_mrl() -> None:
# Arrange
invalid_mrl = "Tests/images/hopper.png"

3
src/PIL/ImageMorph.py
View File

@ -92,10 +92,11 @@ class LutBuilder:
def add_patterns(self, patterns: list[str]) -> None:
self.patterns += patterns
def build_default_lut(self) -> None:
def build_default_lut(self) -> bytearray:
symbols = [0, 1]
m = 1 << 4 # pos of current pixel
self.lut = bytearray(symbols[(i & m) > 0] for i in range(LUT_SIZE))
return self.lut
def get_lut(self) -> bytearray | None:
return self.lut