Image analysis – Image transformation or preprocessing – Measuring image properties
Patent
1995-05-22
1997-01-14
Boudreau, Leo
Image analysis
Image transformation or preprocessing
Measuring image properties
382293, 382254, G06K 936
Patent
active
055948170
ABSTRACT:
A method is provided for identifying, correcting, modifying and reporting imperfections and features in pixel images that prevent or hinder proper OCR (Optical Character Recognition) and other document imaging processes. One embodiment of this invention provides that run length compressed images can be analyzed and corrected directly for improved performance. Major steps included in this invention for the enhancement of images for OCR and document imaging are: The detection, correction and reporting of skew from text or graphical lines. The detection, correction, and reporting of varying image registration. The detection, conversion and reporting of inverse type. The detection, removal and reporting of dot shading and lines with protection of characters.
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Allen Dana R.
Fast Bruce B.
Boudreau Leo
Schenck Paul F.
Tran Phuoc
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