发明名称 |
Digital watermarking methods, apparatus and systems |
摘要 |
The present invention relate generally to digital watermarking and data hiding. One claim recites a method including: obtaining first data and second color data, the first color data and the second color data represent data from a color image signal or color video signal; obtaining a digital watermark pattern, the pattern aiding detection of a watermark message; separating the digital watermark pattern into first frequency components and second frequency components; utilizing a programmed electronic processor or electronic processing circuitry, modifying the first color data by hiding the first frequency components therein; and utilizing a programmed electronic processor or electronic processing circuitry, modifying the second color data by hiding the second frequency components therein. Of course, other combinations and claims are provided too. |
申请公布号 |
US8913780(B2) |
申请公布日期 |
2014.12.16 |
申请号 |
US201313963627 |
申请日期 |
2013.08.09 |
申请人 |
Digimarc Corporation |
发明人 |
Reed Alastair M.;Sharma Ravi K. |
分类号 |
G06K9/00;G06T1/00 |
主分类号 |
G06K9/00 |
代理机构 |
Digimarc Corporation |
代理人 |
Digimarc Corporation |
主权项 |
1. A method comprising:
obtaining first color data and second color data, the first color data and the second color data represent data from a color image signal or color video signal; obtaining a digital watermark pattern, the pattern aiding detection of a digital watermark message; separating the digital watermark pattern into first frequency components and second frequency components; utilizing a programmed electronic processor or electronic processing circuitry, modifying the first color data by hiding the first frequency components therein; and utilizing a programmed electronic processor or electronic processing circuitry, modifying the second color data by hiding the second frequency components therein. |
地址 |
Beaverton OR US |