Encoding hidden data
US7136503B2 · kind B2 · utility
8Cited by
50References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2005 |
| Grant date | Nov 14, 2006 |
| Priority date | — |
| Expiry date | Mar 7, 2025 |
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 thereof. These adjustments can define a pattern that extends across some or all of the image. Desirably, the pattern is adapted to the particular image being encoded, so as to better conceal the encoding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.