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But the original image does contain the black bars, look at the example! The difference is this: Resizecrop can use information from outside the crop area in the interpolation process of edge pixels. That leads to the bleeding effect. It always happens, not only with black bars. Crop+Resize can not use information from outside the crop area in the interpolation process.
Forget about more or less information in the output image. That’s not the point. The important difference is that edge pixels contain different information.
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