A custom sampling area is a user-defined region in an image that allows you to select specific pixels for use in operations like Content-Aware Fill and the Patch Tool. This feature gives greater control over which parts of an image are sampled when filling or patching, making it easier to achieve a seamless blend with the surrounding content. By defining this area, you can ensure that the fill or patch effect utilizes the most relevant textures and colors from the image.
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