| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a technique for obtaining a precise image area identification result even in a copy original of a plurality of generations, and for obtaining a high-function electronic file. Ž<P>SOLUTION: An image-forming device has: a document image input means for inputting a document image to generate an input document image, namely image data; an image area information input means for inputting image area information created for each image area of the document image; an image formation means for forming a watermark image in which the image area information is embedded; and a watermarked document image composite means for compositing the input document and watermark images to form a watermarked document image. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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