grey-scale

graphics (US "gray-scale") 1. Composed of (discrete) shades

of grey. If the pixels of a grey-scale image have N

bits, they may take values from zero, representing black up

to 2^N-1, representing white with intermediate values

representing increasingly light shades of grey. If N=1 the

image is not called grey-scale but could be called

monochrome.

2. A range of acurately known shades of grey printed out for

use in calibrating those shades on a display or printer.

(1995-03-17)