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Merge pull request #91 from radarhere/invalid-box-blur-filter

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Hugo van Kemenade 2023-01-11 15:01:19 +02:00 committed by GitHub
commit d504d2a47e
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2 changed files with 9 additions and 0 deletions
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6
Tests/test_image_filter.py
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@ -179,3 +179,9 @@ def test_consistency_5x5(mode):
def test_invalid_box_blur_filter(): def test_invalid_box_blur_filter():
with pytest.raises(ValueError): with pytest.raises(ValueError):
ImageFilter.BoxBlur(-2) ImageFilter.BoxBlur(-2)
im = hopper()
box_blur_filter = ImageFilter.BoxBlur(2)
box_blur_filter.radius = -2
with pytest.raises(ValueError):
im.filter(box_blur_filter)

3
src/libImaging/BoxBlur.c
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@ -237,6 +237,9 @@ ImagingBoxBlur(Imaging imOut, Imaging imIn, float radius, int n) {
if (n < 1) { if (n < 1) {
return ImagingError_ValueError("number of passes must be greater than zero"); return ImagingError_ValueError("number of passes must be greater than zero");
} }
if (radius < 0) {
return ImagingError_ValueError("radius must be >= 0");
}
if (strcmp(imIn->mode, imOut->mode) || imIn->type != imOut->type || if (strcmp(imIn->mode, imOut->mode) || imIn->type != imOut->type ||
imIn->bands != imOut->bands || imIn->xsize != imOut->xsize || imIn->bands != imOut->bands || imIn->xsize != imOut->xsize ||