About the different color modes (Photoshop)Color models describe colors numerically. There are different methods of describing colors numerically, and a color mode determines which method or set of numbers to use to display and print an image. Photoshop bases its color modes on the color models that are useful for images used in publishing. You can choose from RGB (red, green, blue); CMYK (cyan, magenta, yellow, black); Lab Color (based on CIE L*a*b*), and Grayscale. Photoshop also includes modes for specialized color output such as Indexed Color and Duotone. Note: ImageReady only uses the RGB mode to work with images, since its documents are primarily intended for the Web. For more information about color models, see Using color models to describe color. In addition to determining the number of colors that can be displayed in an image, color modes affect the number of channels and the file size of an image. Related Subtopics: |
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