Method, apparatus, and computer program product for embedding digital watermark, and method, apparatus, and computer program product for extracting digital watermark
US7411702B2 · kind B2 · utility
2Cited by
11References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 28, 2003 |
| Grant date | Aug 12, 2008 |
| Priority date | — |
| Expiry date | Jul 14, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2201/0061
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for embedding a digital watermark includes a step of inputting digital watermark information; a step of inputting an image; a step of dividing the image into a plurality of areas; a step of ordering the plurality of areas according to a predetermined ordering criterion; a step of embedding the digital watermark information over the plurality of areas that have been ordered; and a step of outputting an image with the digital watermark information embedded therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.