Self-centering character stroke thickening for optical character

Details Self-centering character stroke thickening for optical character Self-centering character stroke thickening for optical character

1990-06-11

1991-10-01

Brinich, Stephen

Image analysis

Histogram processing

For setting a threshold

382 55, G06K 946

Patent

active

050541021

ABSTRACT:
In an optical character recognition system, character strokes are automatically enhanced prior to processing by matching the character bit map with a set of templates. Each template has a stripe of thickness W composed of binary ones surrounded by zeroes along a horizontal, vertical, major diagonal or minor diagonal direction. If the template matches a character stroke to a predetermined degree, the stroke is enhanced by increasing its thickness to a predetermined number N of binary ones.

REFERENCES:
patent: 4010446 (1977-03-01), Kawa
patent: 4581762 (1986-04-01), Lapidus et al.
patent: 4924521 (1987-12-01), Dinan et al.

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