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[pre-commit.ci] auto fixes from pre-commit.com hooks

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pre-commit-ci[bot] 2025-08-25 05:16:48 +00:00
parent 6216187fb6
commit 29c4469e30
3 changed files with 22 additions and 8 deletions
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16
Tests/test_image_resample.py
View File

@ -179,7 +179,6 @@ class TestImagingCoreResampleAccuracy:
for channel in case.split(): for channel in case.split():
self.check_case(channel, self.make_sample(data, (10, 10))) self.check_case(channel, self.make_sample(data, (10, 10)))
@pytest.mark.parametrize("mode", ("RGBX", "RGB", "La", "L")) @pytest.mark.parametrize("mode", ("RGBX", "RGB", "La", "L"))
def test_enlarge_box(self, mode: str) -> None: def test_enlarge_box(self, mode: str) -> None:
case = self.make_case(mode, (2, 2), 0xE1) case = self.make_case(mode, (2, 2), 0xE1)
@ -341,7 +340,9 @@ class TestCoreResampleAlphaCorrect:
self.run_levels_case(case.resize((512, 32), Image.Resampling.HAMMING)) self.run_levels_case(case.resize((512, 32), Image.Resampling.HAMMING))
self.run_levels_case(case.resize((512, 32), Image.Resampling.BICUBIC)) self.run_levels_case(case.resize((512, 32), Image.Resampling.BICUBIC))
self.run_levels_case(case.resize((512, 32), Image.Resampling.LANCZOS)) self.run_levels_case(case.resize((512, 32), Image.Resampling.LANCZOS))
self.run_levels_case(case.resize((512, 32), Image.Resampling.MAGIC_KERNEL_SHARP_2021)) self.run_levels_case(
case.resize((512, 32), Image.Resampling.MAGIC_KERNEL_SHARP_2021)
)
@pytest.mark.xfail(reason="Current implementation isn't precise enough") @pytest.mark.xfail(reason="Current implementation isn't precise enough")
def test_levels_la(self) -> None: def test_levels_la(self) -> None:
@ -351,7 +352,9 @@ class TestCoreResampleAlphaCorrect:
self.run_levels_case(case.resize((512, 32), Image.Resampling.HAMMING)) self.run_levels_case(case.resize((512, 32), Image.Resampling.HAMMING))
self.run_levels_case(case.resize((512, 32), Image.Resampling.BICUBIC)) self.run_levels_case(case.resize((512, 32), Image.Resampling.BICUBIC))
self.run_levels_case(case.resize((512, 32), Image.Resampling.LANCZOS)) self.run_levels_case(case.resize((512, 32), Image.Resampling.LANCZOS))
self.run_levels_case(case.resize((512, 32), Image.Resampling.MAGIC_KERNEL_SHARP_2021)) self.run_levels_case(
case.resize((512, 32), Image.Resampling.MAGIC_KERNEL_SHARP_2021)
)
def make_dirty_case( def make_dirty_case(
self, mode: str, clean_pixel: tuple[int, ...], dirty_pixel: tuple[int, ...] self, mode: str, clean_pixel: tuple[int, ...], dirty_pixel: tuple[int, ...]
@ -395,7 +398,8 @@ class TestCoreResampleAlphaCorrect:
case.resize((20, 20), Image.Resampling.LANCZOS), (255, 255, 0) case.resize((20, 20), Image.Resampling.LANCZOS), (255, 255, 0)
) )
self.run_dirty_case( self.run_dirty_case(
case.resize((20, 20), Image.Resampling.MAGIC_KERNEL_SHARP_2021), (255, 255, 0) case.resize((20, 20), Image.Resampling.MAGIC_KERNEL_SHARP_2021),
(255, 255, 0),
) )
def test_dirty_pixels_la(self) -> None: def test_dirty_pixels_la(self) -> None:
@ -405,7 +409,9 @@ class TestCoreResampleAlphaCorrect:
self.run_dirty_case(case.resize((20, 20), Image.Resampling.HAMMING), (255,)) self.run_dirty_case(case.resize((20, 20), Image.Resampling.HAMMING), (255,))
self.run_dirty_case(case.resize((20, 20), Image.Resampling.BICUBIC), (255,)) self.run_dirty_case(case.resize((20, 20), Image.Resampling.BICUBIC), (255,))
self.run_dirty_case(case.resize((20, 20), Image.Resampling.LANCZOS), (255,)) self.run_dirty_case(case.resize((20, 20), Image.Resampling.LANCZOS), (255,))
self.run_dirty_case(case.resize((20, 20), Image.Resampling.MAGIC_KERNEL_SHARP_2021), (255,)) self.run_dirty_case(
case.resize((20, 20), Image.Resampling.MAGIC_KERNEL_SHARP_2021), (255,)
)
class TestCoreResamplePasses: class TestCoreResamplePasses:

12
src/PIL/Image.py
View File

@ -2259,7 +2259,10 @@ class Image:
for filter in ( for filter in (
(Resampling.NEAREST, "Image.Resampling.NEAREST"), (Resampling.NEAREST, "Image.Resampling.NEAREST"),
(Resampling.LANCZOS, "Image.Resampling.LANCZOS"), (Resampling.LANCZOS, "Image.Resampling.LANCZOS"),
(Resampling.MAGIC_KERNEL_SHARP_2021, "Image.Resampling.MAGIC_KERNEL_SHARP_2021"), (
Resampling.MAGIC_KERNEL_SHARP_2021,
"Image.Resampling.MAGIC_KERNEL_SHARP_2021",
),
(Resampling.BILINEAR, "Image.Resampling.BILINEAR"), (Resampling.BILINEAR, "Image.Resampling.BILINEAR"),
(Resampling.BICUBIC, "Image.Resampling.BICUBIC"), (Resampling.BICUBIC, "Image.Resampling.BICUBIC"),
(Resampling.BOX, "Image.Resampling.BOX"), (Resampling.BOX, "Image.Resampling.BOX"),
@ -2930,7 +2933,12 @@ class Image:
Resampling.BILINEAR, Resampling.BILINEAR,
Resampling.BICUBIC, Resampling.BICUBIC,
): ):
if resample in (Resampling.BOX, Resampling.HAMMING, Resampling.LANCZOS, Resampling.MAGIC_KERNEL_SHARP_2021): if resample in (
Resampling.BOX,
Resampling.HAMMING,
Resampling.LANCZOS,
Resampling.MAGIC_KERNEL_SHARP_2021,
):
unusable: dict[int, str] = { unusable: dict[int, str] = {
Resampling.BOX: "Image.Resampling.BOX", Resampling.BOX: "Image.Resampling.BOX",
Resampling.HAMMING: "Image.Resampling.HAMMING", Resampling.HAMMING: "Image.Resampling.HAMMING",

2
src/libImaging/Resample.c
View File

@ -83,7 +83,7 @@ static inline double
magic_kernel_sharp_2021_filter(double x) { magic_kernel_sharp_2021_filter(double x) {
x = fabs(x); x = fabs(x);
if (x < 0.5) { if (x < 0.5) {
return 577.0 / 576.0 - 239.0 / 144.0 * x *x; return 577.0 / 576.0 - 239.0 / 144.0 * x * x;
} }
if (x < 1.5) { if (x < 1.5) {
return 35.0 / 36.0 * (x - 1.0) * (x - 239.0 / 140.0); return 35.0 / 36.0 * (x - 1.0) * (x - 239.0 / 140.0);