Graphics Programs Reference
In-Depth Information
Review questions
1 . What is the benefit of using a quick mask?
2 . What happens to a quick mask when you deselect it?
3 . When you save a selection as a mask, where is the mask stored?
4 . How can you edit a mask in a channel once you've saved it?
5 . How do channels differ from layers?
Review answers
1 . Quick masks are helpful for creating quick, one-time selections. In addi-
tion, using a quick mask is an easy way to edit a selection using the paint-
ing tools.
2 . The quick mask disappears when you deselect it.
3 . Masks are saved in channels, which can be thought of as storage areas for
color and selection information in an image.
4 . You can paint on a mask in a channel using black, white, and shades of
gray.
5 . Channels are used as storage areas for saved selections. Unless you expli-
citly display a channel, it does not appear in the image or print. Layers can
be used to isolate various parts of an image so that they can be edited as
discrete objects with the painting or editing tools or other effects.
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