White balance control method, white balance control apparatus and image-taking apparatus
US7643068B2 · kind B2 · utility
22Cited by
5References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 8, 2006 |
| Grant date | Jan 5, 2010 |
| Priority date | — |
| Expiry date | Aug 9, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/88
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
According to the present invention, it is possible, by using the first and second light source loci, to tone down the influence of the object color of the color information in the image and detect the light source based on the color information having the influence of the object color toned down so as to detect the light source accurately. It is thereby possible to reduce the color failure when controlling the white balance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.