Method and apparatus for color-correcting multi-channel signals of a digital camera
US5805213A · kind A · utility
180Cited by
7References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 8, 1995 |
| Grant date | Sep 8, 1998 |
| Priority date | — |
| Expiry date | Dec 8, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/85
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Multi-channel color image signals from a digital camera having multi-channel image sensors are corrected to account for variations in scene illuminant. This is accomplished by determining the scene illuminant and determining an optimum color-correction transformation in response to the scene illuminant which transform minimizes color errors between an original scene and a reproduced image by adjusting three or more parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.