Method and apparatus for compensating for uneven lighting in an image
US7609883B1 · kind B1 · utility
2Cited by
9References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 11, 2005 |
| Grant date | Oct 27, 2009 |
| Priority date | — |
| Expiry date | Sep 14, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T5/92
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system that compensates for uneven lighting in a digital image of a surface. During operation, the system receives the digital image of the surface. Next, the system obtains a reference lighting map for the surface, which contains information about the lighting of the surface at the time the digital image was acquired. The system then uses the reference lighting map to compensate for uneven lighting in the digital image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.