Encoding data in an image
US9313360B2 · kind B2 · utility
11Cited by
9References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2014 |
| Grant date | Apr 12, 2016 |
| Priority date | — |
| Expiry date | Jul 30, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/644
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Certain methods and systems are described for encoding data in an image. According to an example, a set of metamers under a first set of conditions may be determined that vary under a second set of conditions. These may be used to generate a set of color mappings for a sampled color value, each color mapping being used for a different data value in the data. As such the data values may be detectable when the image is observed under the second set of conditions but not detectable when the image is observed under the first set of conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.