The Magic Eraser Tool

The Magic Eraser tool works in a similar fashion to the Magic Wand tool. The difference is that rather than create a selection based on the sampled color, it erases the pixels to transparency. Furthermore, unlike the Eraser tool, if you use the Magic Eraser on a Background layer, rather than paint it with the background color, it converts it to a normal layer and then erases the pixels to transparency.

The settings on the options bar let you modify the tool's behavior. They include:

■ Tolerance—Higher settings erase more shades of the sampled color. For example, if you have a low setting and you click a red color, all instances of that red go to transparency. If you increase the settings, for example, from 32 to 64, any shades leaning toward orange on one side and purple on the other are also deleted.

■ Anti-alias—Ensures a smooth edge for the area that you have extracted.

■ Contiguous—Forces the tool to erase only adjacent pixels that fall within the tolerance value.

■ Sample All Layers—Uses data from merged layers to determine what data to erase.

■ Opacity—Controls the level to which the erased pixels are opaque or transparent.

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