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Chapter 10. Creating Layer and Channel Masks > Understanding Channel Masks

Understanding Channel Masks

The Channels palette serves three purposes—to hold color information, to hold spot color information, and to hold selections (channel masks). Creating channel masks can be as easy as clicking the Create New Channel button, and then using any painting or drawing tools to create the mask, or by making a selection, and converting the selection into a mask, by clicking the Convert To Mask button. When you paint the channel mask, the defaults are—black for masked areas, white for selected areas, and shades of gray for percentages of selection.


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