Character recognition method

Details Character recognition method Character recognition method

1988-10-18

1991-07-16

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

382 18, 382 30, 382 48, G06K 934

Patent

active

050330977

ABSTRACT:
A character recognition method includes the following steps. The first step is a step of provisionally selecting a segment position for dividing a character line image into image parts within a character recognition processing section in accordance with a condition with respect to widths of black and white regions exhibited in a vertical projection of the character line image within the character recognition processing section. The second step is a step of dividing the character line image into image parts at the segment position to thereby extract the image parts. The third step is a step of subjecting each of the image parts to character recognition. The fourth step is a step of determining an optimum segment position in accordance with results of character recognition. The fifth step is a step of outputting a result of character recognition associated with the optimum segment position.

REFERENCES:
patent: 4635290 (1987-02-01), Tsuji et al.
patent: 4654873 (1987-03-01), Fujisawa et al.
patent: 4811412 (1989-03-01), Katsurada
patent: 4847912 (1989-07-01), Tanaka et al.
patent: 4959868 (1990-09-01), Tanioka

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