Image processing method and apparatus for error-dispersion digit

Details Image processing method and apparatus for error-dispersion digit Image processing method and apparatus for error-dispersion digit

1988-01-19

1991-04-16

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

358447, 358455, 358463, 382 54, G06K 940

Patent

active

050089501

ABSTRACT:
There is provided an improvement on the error dispersion method for binary digitizing of an image, in which an area of plural pixels is digitzed, and the error into the digitizing is dispersed in a neighboring area of plural pixels. In the latter area the digitization is conducted according to the image data of plural pixels and the error data dispersed into this area.

REFERENCES:
patent: 4675909 (1987-06-01), Egami et al.
patent: 4692811 (1987-09-01), Tsuchiya et al.

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