Method for determining a partition in order to insert a watermark, and associated insertion and decoding methods
US7031491B1 · kind B1 · utility
43Cited by
13References
46Claims
0Family size
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Key dates
| Filing date | Apr 6, 2000 |
| Grant date | Apr 18, 2006 |
| Priority date | — |
| Expiry date | Apr 6, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/327
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of determining a partition into distinct regions of a set of coefficients representative of at least a part of an image in order to insert a watermark comprises the following steps: Use especially for determining an adaptative partition as a function of a criterion of detectability of an information bit inserted on each region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.