发明名称 |
Information embedding method, information extracting method, information embedding apparatus, information extracting apparatus, and recording media |
摘要 |
An apparatus for embedding secret information in an image signal transmitted with a shape signal showing the shape of an object is described. This apparatus comprises an embedding position decision unit for deciding a position in the object where the secret information is to be embedded, according to the shape signal; and a compositor for embedding the secret information in the position decided by the decision unit. Therefore, the secret information is protected against translation or clipping of image.
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申请公布号 |
US6334187(B1) |
申请公布日期 |
2001.12.25 |
申请号 |
US19980107457 |
申请日期 |
1998.06.30 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
KADONO SHINYA |
分类号 |
G06T1/00;H04N5/913;H04N7/24;H04N7/26;(IPC1-7):H04L9/00;H04N1/44 |
主分类号 |
G06T1/00 |
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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