Riemersma dithering

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Riemersma dithering is an image dithering technique that provides a middle ground between ordered dithering and error diffusion. The result is a bit more coarse than error diffusion techniques (such as Floyd-Steinberg).

When dithering a pixel, the number of neighboring pixels affected is limited. This makes Riemersma dithering suitable for use in delta-frame encoded animation, since the resultant compressing will benefit from the low variance in consecutive frames.

[edit] References

• Thiadmer Riemersma, A Balanced Dithering Technique, C/C++ User's Journal, vol. 16 issue 12, December 1998
• Riemersma Dither explained at CompuPhase