Systems and methods for illuminant model estimation
US7352895B2 · kind B2 · utility
3Cited by
5References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2003 |
| Grant date | Apr 1, 2008 |
| Priority date | — |
| Expiry date | Nov 30, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/6086
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Elements of the present invention relate to methods and systems for estimating an image illuminant model. In some embodiments, color gamut models for a plurality of candidate illuminants are calculated and compared to an image color gamut by determining a distance match metric for each of the candidate illuminants with reference to the image color gamut. An image illuminant may then be selected from the plurality of candidate illuminants based on the distance match metric.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.