Image marking adapted to the image
US7062070B2 · kind B2 · utility
20Cited by
39References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2004 |
| Grant date | Jun 13, 2006 |
| Priority date | — |
| Expiry date | Oct 21, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/327
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A digital image is processed to hide information, by generally inconspicuous adjustments of pixel values. Desirably, the processing is adapted to the particular image being encoded, so as to better conceal the encoding. The method may include determining a relative ability of a pixel to be adjusted inconspicuously, by reference to values of at least two neighboring pixels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.