The traditional halftone image (exaggerated here so you can see the dot
patterns) shows clear evidence of the dots, their colors (cyan, magenta,
yellow and black) at different printing angles.
The error-diffusion technique creates dither patterns that create tonality in
an image. These patterns are exaggerated here so they can be seen. Error-
diffusion images print well, and look great when generated on an HP
Designjet printer.
© 2002 hewlett-packard company
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