Image information recognition apparatus

Details Image information recognition apparatus Image information recognition apparatus

1988-04-11

1989-04-18

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

382 61, 382 63, G06K 920

Patent

active

048233951

ABSTRACT:
In an image information recognition apparatus image information read by an image reader is stored in an image memory. Since the read image information corresponds to the entire reading range of the reader, an edge of a specific region of the image signals is detected by an edge detector. Boundaries of the region are determined by a coordinate emulator in accordance with a detection signal from the edge detector. Image information within the region surrounded by the boundaries is read out from the image memory, and a bit mover rotates the image information to a normal position or trims it, as needed.

REFERENCES:
patent: 4556915 (1985-12-01), Shibata et al.
patent: 4616269 (1986-10-01), Mori
patent: 4623935 (1986-11-01), Mukai et al.
patent: 4623938 (1986-11-01), Asano et al.
patent: 4672461 (1987-06-01), Yoshida
Abstract from PCT Appln. No. EP83/00303, 6-7-84.
English translation of EP0020897B1.
IBM Technical Disclosure Bulletin, vol. 27, No. 8, Jan. 1985, pp. 4604 & 4607.

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