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Selection Tricks in Photoshop CS4

By Peter Bauer

Part of Photoshop CS4 For Dummies Cheat Sheet

Say you want to work on a part, or selection, of an image instead of the whole photo. Photoshop CS4 has a large group of selection commands and tools. Here are a few tricks to add:

To: Do:
Make a selection of all pixels on a layer Command+click/Ctrl+click the layer thumbnail.
Load a layer mask as a selection Command+click/Ctrl+click the mask thumbnail.
Load an alpha channel as a selection Command+click/Ctrl+click the channel thumbnail.
Load all pixels according to luminosity Command+click/Ctrl+click the RGB channel thumbnail.