Method and image reproduction device for reproducing grey values

Details Method and image reproduction device for reproducing grey values Method and image reproduction device for reproducing grey values

1996-11-27

1998-10-06

Rogers, Scott

Image analysis

Image compression or coding

Quantization

382237, 382270, 358456, 358457, 358458, G06K 938, H04N 1405

Patent

active

058189718

ABSTRACT:
The invention relates to a method and device for reproducing grey values by reproducing pixels with specific dimensions and degrees of coverage. Use is made of a method based on error diffusion, wherein no clustering of identical pixels is the objective in edge zones while such clustering is the objective outside such zones.

REFERENCES:
patent: 5077615 (1991-12-01), Tsuji
patent: 5268774 (1993-12-01), Eschbach
patent: 5321525 (1994-06-01), Hains
patent: 5339171 (1994-08-01), Fujisawa et al.
patent: 5363210 (1994-11-01), Sasaki et al.
patent: 5374997 (1994-12-01), Eschbach
A Survey of Electronic Techniques for Pictorial Image Reproduction, J.S. Stoffel et al, IEEE Transactions on Communication, vol. COM-29, No. 12, Dec. 1981.
"Digital Halftoning" by Robert Ulichney, MIT Press, 1987, Chapter 8.

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