Method for processing binary image data

Details Method for processing binary image data Method for processing binary image data

1985-10-15

1988-07-12

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

358261, 382 56, G06K 936

Patent

active

047575522

ABSTRACT:
A method for processing binary image data in preparation for further compression in accordance with a table based upon distances between transitions in successive lines. Advantageously, three lines are considered at one time and the spatial relationship between the transitions in the first and second lines and said second and third lines controls the amount of data compression to be accomplished.

REFERENCES:
patent: 4204232 (1980-05-01), Mizuo
patent: 4229768 (1980-10-01), Kurahayashi et al.
patent: 4291339 (1981-09-01), Ogawa et al.
patent: 4300122 (1981-11-01), McMahon
patent: 4307377 (1981-12-01), Pferd et al.
Nikkei Electronics--11/3/75--pp. 30-34.
CCITT Recommendation T.4-Geneva 1980.

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