Image processing apparatus with binarization-error dispersal

Details Image processing apparatus with binarization-error dispersal Image processing apparatus with binarization-error dispersal

1987-12-23

1989-10-24

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

382 54, 358456, H04N 140

Patent

active

048766100

ABSTRACT:
An image processing apparatus for digitizing an analog image by dispersing the digitizing error to the surrounding areas. The characteristics or edge of the analog image are identified, and the error dispersing area is varied according to the result of identification, thus enabling reproduction of the image with high quality regardless of the nature of the original image.

REFERENCES:
patent: 4547811 (1985-10-01), Ochi
patent: 4549212 (1985-10-01), Bayer
patent: 4554593 (1985-11-01), Fox et al.
patent: 4692811 (1987-09-01), Tsuchiya
patent: 4703363 (1987-10-01), Kitamura
patent: 4742400 (1988-05-01), Tsuji
patent: 4747156 (1988-05-01), Wahl
patent: 4774544 (1988-02-01), Matsumoto
"An Adaptive Algorithm for Spatial Grey Scale", Floyd and Steinberg, pp. 36-37, SID 75.

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