发明名称 |
Data processing apparatus and method and storage medium |
摘要 |
It is an object of this invention to reliably pad electronic water-mark information even in a moving image constituted by a plurality of frames whose contents hardly change and easily pad electronic water-mark information even in a general moving image obtained by photographing an object at one angle. In order to achieve this object, there is provided an electronic water-mark information padding scheme of padding electronic water-mark information in only intraframe-encoded data without padding any electronic water-mark information in interframe-encoded data.
|
申请公布号 |
US6449378(B1) |
申请公布日期 |
2002.09.10 |
申请号 |
US19990235390 |
申请日期 |
1999.01.22 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
YOSHIDA JUN;NAGASAWA KENICHI;IWAMURA KEIICHI |
分类号 |
H04N7/32;G06T1/00;G09C5/00;H04N7/08;H04N7/081;(IPC1-7):G06K9/00 |
主分类号 |
H04N7/32 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|