Detection of highlighted regions

Details Detection of highlighted regions Detection of highlighted regions

1995-06-07

1997-04-08

Boudreau, Leo

Image analysis

Image segmentation

Separating document regions using preprinted guides or markings

382176, 382257, 382282, 382308, G06K 934

Patent

active

056195923

ABSTRACT:
A method and apparatus for detection of highlighted regions of a document. A document containing highlighted regions is scanned using a gray scale scanner. Morphology and threshold reduction techniques are used to separate highlighted and non-highlighted portions of the document. Having separated the highlighted and non-highlighted portions, optical character recognition (OCR) techniques can then be used to extract text from the highlighted regions.

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