White balance method
US7495696B2 · kind B2 · utility
7Cited by
1References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2005 |
| Grant date | Feb 24, 2009 |
| Priority date | — |
| Expiry date | Mar 30, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/88
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A white balance method for an image formed by a digital still camera is provided. The white balance method comprises steps of: removing a color cast over a white object of the image; detecting a reference white point from the image by extracting an a pixel information of the white object; and adjusting a white balance of the white object by determining a scale factor based on the color cast and the pixel information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.