An error diffusion circuit and method for adoptively compensating for the distortion of brightness and color with respect to neighboring pixels. An error diffusion circuit of a color image printer having a circuit for scanning color documents and generating C-M-Y (cyan-magenta-yellow) signals from an...http://www.google.fr/patents/US5375002?utm_source=gb-gplus-shareBrevet US5375002 - Color error diffusion
