| 摘要 |
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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