发明名称 |
Image processing method, image processing apparatus, program and recording medium that can reduce image quality degradation |
摘要 |
An image processing method includes the steps of: dividing digital content into run-lengths each including one or more consecutive pixels having an identical color; and embedding digital watermark information in the run-lengths while saving topology (first topology preservation law).
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申请公布号 |
US7542584(B2) |
申请公布日期 |
2009.06.02 |
申请号 |
US20050061276 |
申请日期 |
2005.02.18 |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
ABE YASUSHI;NISHIMURA TAKAYUKI |
分类号 |
G06K9/00;G06F7/04;G06T1/00;G09C3/00;G09C5/00;H04K1/02;H04L9/00;H04N1/387 |
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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