Magic Eraser tool
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Eraser, Background Eraser, Magic Extractor
The Magic Eraser selects and then erases pixels of similar tone and color. The tool is great for removing unwanted backgrounds when making composite or montage pictures.
The Tolerance setting determines how alike the pixels need to be before they are erased. High settings will include more pixels of varying shades and colors.
Select the Contiguous option to force the tool to select pixels that are adjacent to each ...