发明名称 |
Image processing method, image printing method, image printing mechanism and printed matter |
摘要 |
A multi-gradation image such as a face image of a person in which sub-information is to be embedded is subjected to a preprocess by a preprocessing section based on a relationship between certain image data and read image data of a printed matter on which the certain image data is printed, sub-information is embedded into the multi-gradation image subjected to the preprocess by the preprocessing section by use of an digital watermark embedding section in an invisible state to the human eye, and the multi-gradation image having the sub-information embedded therein by the digital watermark embedding section is subjected to a post-process corresponding to the preprocess performed by the preprocessing section by use of a post-processing section.
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申请公布号 |
US2006023260(A1) |
申请公布日期 |
2006.02.02 |
申请号 |
US20050191275 |
申请日期 |
2005.07.28 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
MIKI TAKEO;YAMAGUCHI TAKASHI |
分类号 |
G06K9/00 |
主分类号 |
G06K9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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