Adobe Photoshop uses masks to isolate and manipulate specific parts of an image. A mask is like a stencil. The cutout portion of the mask can be altered, but the area surrounding the cutout is protected from change. You can create a temporary mask for one-time use, or you can save masks for repeated use.
In this lesson, you'll learn how to do the following:
• Refine a selection using a quick mask.
• Save a selection as a channel mask.
• View a mask using the Channels palette.
• Load a saved mask and apply effects.
• Paint in a mask to modify a selection.
• Make an intricate selection using the Extract command.
• Create and use a gradient mask.
This lesson will take about 70 minutes to complete. The lesson is designed to be done in Adobe Photoshop. ImageReady does not contain the advanced masking features available in Photoshop.
If needed, remove the previous lesson folder from your hard drive, and copy the Lesson06 folder onto it. As you work on this lesson, you'll overwrite the start files. If you need to restore the start files, copy them from the Adobe Photoshop 7.0 Classroom in a Book CD.
Note: Windows users need to unlock the lesson files before using them. For more information, see "Copying the Classroom in a Book files" on page 4.
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