| 摘要 |
A pattern recognition matching processing method and apparatus uses expansion processing with dictionary data as a matching candidate (pattern image). Contraction processing may be performed for the pattern image, and a differential image between the expanded and contracted images can be found. A mask image is prepared based on the differential image, and matching processing of the image containing a character to be recognized with the pattern image is performed with respect to pixels in an area other than the prepared mask image.
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