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Glossary Page 73

Glossary

additive primary

colors

The colors of red, green and blue (RGB)—which give the perception of

white when fully added. These are the colors of the color system used

with monitors and scanners.

bit Short for binary digit. The smallest unit of data in computer processing. A

bit can represent two values: on and off, or 1 and 0.

bit/pixel The unit that indicates the number of bits allocated for a pixel. The larger

the bit value, the more detail a pixel can represent.

brightness A scanner function to lighten or darken the output image data.

carriage A component of the scanner that contains the optical sensor and light

source for scanning.

color correction A method of adjusting the color image data for a particular type of device

so that the reproduction results are as close as possible to the original

colors.

color separation A process of converting full-color images into a limited number of primary

colors. Additive primary colors (red, green, and blue) are used by the

scanner, and the subtractive primary colors (cyan, magenta, and yellow)

plus black are used for printing press separation.

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Epson Perfection 636U Spezifikationen Seite 73