| 摘要 |
PROBLEM TO BE SOLVED: To reduce processing time when a user executes black letter judgment processing with software. SOLUTION: This image processing means has an image input means for inputting the image of plural color component signals, a chroma judging means for judging the chroma of the image inputted with the above image input means, a thickness judging means for judging the judgment result of the above chroma judging means and the thickness of the image from the image inputted with the above image input means, and an edge judging means for judging the contour of the image from the judgment result of the above chroma judging means and the judgment result of the above thickness judging means, and the image inputted with the above image input means, and executes black letter judgment processing in a reduced processing time by reflecting the result of the previous process in software processing.
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