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Ensure integral output of linear op #3468

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Lovell Fuller
2022-12-04 21:41:15 +00:00
parent a472aea025
commit 0265d305fe
3 changed files with 27 additions and 2 deletions
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4
src/operations.cc
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@@ -345,9 +345,9 @@ namespace sharp {
if (HasAlpha(image) && a.size() != bands && (a.size() == 1 || a.size() == bands - 1 || bands - 1 == 1)) {
// Separate alpha channel
VImage alpha = image[bands - 1];
return RemoveAlpha(image).linear(a, b).bandjoin(alpha);
return RemoveAlpha(image).linear(a, b, VImage::option()->set("uchar", TRUE)).bandjoin(alpha);
} else {
return image.linear(a, b);
return image.linear(a, b, VImage::option()->set("uchar", TRUE));
}
}