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Chapter 6. Rendering > Conversions among Device Color Spaces

6.2. Conversions among Device Color Spaces

Each raster output device has a native color space, which typically is one of the standard device color spaces (DeviceGray, DeviceRGB, or DeviceCMYK). In other words, most devices support reproduction of colors according to a grayscale (monochrome), RGB (red-green-blue), or CMYK (cyan-magenta-yellow-black) model. If the device supports continuous-tone output, reproduction occurs directly. Otherwise, it is accomplished by means of halftoning.

A device's native color space is also called its process color model. Process colors are ones that are produced by combinations of one or more standard process colorants. Colors specified in any device or CIE-based color space are rendered as process colors. (A device can also support additional spot colorants, which can be painted only by means of Separation or DeviceN color spaces. They are not involved in the rendering of device or CIE-based color spaces, nor are they subject to the conversions described below.)


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