Method and apparatus for extracting information from forms

Details Method and apparatus for extracting information from forms Method and apparatus for extracting information from forms

1989-08-25

1991-04-23

Moore, David K.

Image analysis

Histogram processing

For setting a threshold

382 16, 382 61, 250226, 358 76, 358 78, G06K 900

Patent

active

050105809

ABSTRACT:
A system for extracting handwritten or typed information from forms that have been printed in colors other than the color of the handwritten or typed information. The information extraction system includes a detector for detecting color values for scanned pixel locations on a printed form; a comparator for comparing the color values with reference color values; an identifier for identifying ones of the scanned pixel locations that have color values that correspond to the reference color values; and an optical character recognition engine for receiving data regarding the identified locations.

REFERENCES:
patent: 3938088 (1976-02-01), Clark
patent: 4479242 (1984-10-01), Kurata
patent: 4760606 (1988-07-01), Lesnick et al.
patent: 4812904 (1989-03-01), Maring et al.

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