Method and circuit arrangement for editing slanting characters,

Details Method and circuit arrangement for editing slanting characters, Method and circuit arrangement for editing slanting characters,

1988-07-27

1989-07-04

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

382 48, G06K 932

Patent

active

048457680

ABSTRACT:
An editing arrangement for character recognition has a binary coded character stored in a X/Y-addressable image signal memory from which signals are first read out column-by-column, whereby a first character shadow is formed from the result by projection of successive columns respectively comprising black points onto the character base line. The stored character pattern is then repeatedly read out in accord with a scanning at positive and/or negative oblique angles relative to the Y-axis until as minimum character shadow is produced. The scanned pattern yielding this minimum character shadow is then selected for further evaluation of the character.

REFERENCES:
patent: 4533959 (1985-08-01), Sakurai
patent: 4558461 (1985-12-01), Schlang
patent: 4562594 (1985-12-01), Bednar et al.
patent: 4611232 (1986-09-01), Searby
patent: 4633502 (1986-12-01), Namba

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