| dither If
a monitor can't show a certain color, dithering approximates the color by
placing close together pixels in colors that the computer can display. For
example, shades of gray can be simulated onscreen by combining different
ratios of black and white pixels. To save file space, Web graphic
designers often limit their images to 256 colors and use dithering to
imply other colors. If designers don't do this, and if a computer can't
handle the colors, its Web browser may try to dither the image, possibly
with unattractive results. |