发明名称 |
IMAGE ENCRYPTION/DECODING DEVICE, METHOD, AND PROGRAM |
摘要 |
<p>At the time of marker attachment (at the time of encryption), for example, image conversion in which pixels to be overwritten by a marker are selected and pruned in a distributed manner and the pruning positions are moved to a marker attachment position is performed, and the marker is attached to the marker attachment position obtained as a result. At the time of marker elimination (at the time of decryption), for example, image reverse conversion in which each pixel of the marker is moved to the original position before the marker attachment is performed, each moved pixel of the marker is recovered, and the marker is eliminated.</p> |
申请公布号 |
EP2432211(A1) |
申请公布日期 |
2012.03.21 |
申请号 |
EP20090844563 |
申请日期 |
2009.05.11 |
申请人 |
FUJITSU LIMITED |
发明人 |
NAKAGATA, SHOHEI;IWANAGA, HIROSHI;KURAKI, KENSUKE;TAKAHASHI, JUN;ANAN, TAIZO |
分类号 |
H04N1/32;G09C5/00;H04N1/44 |
主分类号 |
H04N1/32 |
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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