| 发明名称 |
METHOD AND APPARATUS FOR PROVIDING A NOISE ESTIMATION FOR AUTOMATIC SELECTION OF DITHER PATTERNS IN LOW FREQUENCY WATERMARKS |
| 摘要 |
A method and apparatus for providing noise estimation for dithering pattern selection is disclosed. One or more candidate regions are identified from a source. A noise estimation is provided. A dithering pattern is introduced for a selected candidate region based on a magnitude of the noise estimation |
| 申请公布号 |
WO2004114531(A2) |
申请公布日期 |
2004.12.29 |
| 申请号 |
WO2004US19702 |
申请日期 |
2004.06.21 |
| 申请人 |
SARNOFF CORP;LUBIN JEFFREY |
发明人 |
LUBIN JEFFREY |
| 分类号 |
G06K9/46;G06T1/00;G06T5/00;G06T7/00;H04B;H04N1/32;H04N1/405;H04N1/409 |
主分类号 |
G06K9/46 |
| 代理机构 |
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代理人 |
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| 主权项 |
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