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Photoshop 7 for Windows and Macintosh: Visual QuickStart Guide by Peter Lourekas, Elaine Weinmann

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Chapter 2. Photoshop Color

This chapter consists of an introduction to color basics (color models, image modes, and blending modes), and also to Photoshop’s color management features.

Color basics

Pixels

The screen image in Photoshop is a bitmap, which is a geometric arrangement (mapping) of a layer of dots of different shades or colors on a rectangular grid. Each dot, called a pixel, represents a color or shade. By magnifying an area of an image, you can edit pixels individually Pixels. Every Photoshop image is a bitmap, whether it originates from a scan, from another application, or entirely within Photoshop using its painting and editing tools. (Don’t ...

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