Dither processing method

Details Dither processing method Dither processing method

1990-04-20

1993-04-06

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

358456, 358457, G06K 936

Patent

active

052010139

ABSTRACT:
A method of generating a binarized image from an original image. Error values of binarized pixels in the neighborhood of a pixel to be processed are used to modify the pixel to be processed. The error values are filtered according to weighting factors which vary as a function of the density value of the pixel to be processed independent from the density values of the pixels in the neighborhood. The weighted error values are used to modify the pixel to be processed prior to comparing the pixel to be processed to a threshold.

REFERENCES:
patent: 4339774 (1982-07-01), Temple
patent: 4654721 (1987-03-01), Goertzel et al.
patent: 4700229 (1987-10-01), Herrmann et al.
patent: 4878125 (1989-10-01), Katayama et al.
patent: 4891714 (1990-01-01), Klees
patent: 4924322 (1990-05-01), Kurosawa et al.
patent: 4955065 (1990-09-01), Ulichney
patent: 4975786 (1990-12-01), Katayama et al.

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