03/18/2003
15-462 Graphics I
33
Color Dithering
•Example:
8 bit framebuffer
–Set
color map by dividing 8 bits into 3,3,2 for RGB
–Blue
is deemphasized since we see it less well
•Dither
RGB separately
–Works
well with Floyd-Steinberg
•Assemble
results into 8 bit index into colormap
•Generally
looks good