| 发明名称 |
Method and apparatus for detecting alteration in image, and computer product |
| 摘要 |
An apparatus for detecting an alteration in an image includes an alteration detecting unit (109) that detects the alteration in the image based on an electronic watermark embedded in the image, and an output processing unit (111) that outputs the image, when no alteration is detected in the image.
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| 申请公布号 |
EP1641235(A1) |
申请公布日期 |
2006.03.29 |
| 申请号 |
EP20050019973 |
申请日期 |
2005.09.14 |
| 申请人 |
RICOH COMPANY, LTD. |
发明人 |
SUGIURA, YOKO;HAMATAKE, MASAFUMI |
| 分类号 |
H04N1/00;H04N1/32;H04N1/44 |
主分类号 |
H04N1/00 |
| 代理机构 |
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代理人 |
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