halftone
<graphics >
The reproducion of greyscale images using dots of a single shade but varying size to simulate the different shades of grey. Laser printers that cannot print different sized dots, halftones are produced by varying the numbers of dots in a given area. This process is also used to produce a black and white version of a colour original using shades of grey in place of colours. See also device independent bitmap.
Last updated: 1996年09月20日
Nearby terms:
hakspek ♦ HAL ♦ half-duplex ♦ halftone ♦ HALGOL ♦ HALMAT ♦ Hal/S ♦ Halt and Catch Fire
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