Digital watermarking system according to matrix margin and digital watermarking method
US7796777B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 16, 2006 |
| Grant date | Sep 14, 2010 |
| Priority date | — |
| Expiry date | Mar 31, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2201/0062
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A digital watermarking system and method is provided. The digital watermarking system mainly includes a storing unit (30), a text obtaining module (31), a dot matrix determining module (32), an encrypting module (33), and a storing module (34). The storing unit is for storing text information, the text information including one or more dot matrix files. The text obtaining module is for obtaining one dot matrix file to be watermarked from the storing unit. The dot matrix file includes plural dot matrixes, each of which has a matrix margin and includes plural pixels. The dot matrix determining module is for earmarking the dot matrix to be adjusted to obtain a watermark. The encrypting module is for adjusting the matrix margin of the earmarked dot matrix. The storing module is for storing watermarked text information in the storing unit. Related methods are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.