Oki C 9400 User Manual download pdf (Page 333)

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Computer monitors, for example, use red, green and blue phosphors to display images. These

colors are specified using the RGB model.

Saturation

Saturation, sometimes called chroma, is the strength or purity of the color. It represents the

amount of grey in proportion to the hue and is measured as a percentage from 0% (grey) to

100% (fully saturated). On the standard color wheel, saturation increases from the center to the

edge.

Secondary Color

Mixing two primary colors in equal amounts will produce a secondary color (e.g., Red + Green =

Yellow).

Spot Color

A term used in offset printing. These are additional colors used in printing that are not a part of

the process ink set and are specified individually. These colors are required when the end result

is of paramount importance (such as within a corporate logo) as there is a substantial increase

in cost. A separate plate is also required.

Subtractive Primaries

Cyan, Magenta and Yellow (CMY) are the subtractive primaries and are the basis for toners

used in color printing. Color is produced because the toners are designed to absorb certain

wavelengths of light and transmit others.

YCC

This system was developed by Kodak for encoding color images for display on video monitors.

RGB values are converted to a luminance component (Y) and chromatic components (C1) and

(C2).

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Oki C 9400 User Manual Page 333

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