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Chapter 5. Mastering Selections, Masks, ... > Advanced Techniques for Isolating Ar...

Advanced Techniques for Isolating Areas

This section shows you how you can really make the most of selections, masks, and channels to isolate areas in an image.

Converting Selections and Masks

As you saw earlier, both selections and masks can be represented as greyscale bitmaps, and both can be saved to alpha channels. Because selections and masks are such close cousins, a selection can be converted to a mask, and a mask can be converted to a selection.


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