Rapid white balance method for color digital images
US7126644B2 · kind B2 · utility
4Cited by
15References
19Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 7, 2003 |
| Grant date | Oct 24, 2006 |
| Priority date | — |
| Expiry date | Mar 9, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/73
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A rapid white balance method for color digital image is disclosed. This method is applied to RGB color regions in an image. First, the image is divided into several blocks to obtain the G parameter, then the averaged R and B parameters of each block, thereby obtaining the R and B parameters of the whole image. Using the R and B parameters, the method obtains an R gain and a B gain. Finally, the image is adjusted. The method only uses one RGB value for each pixel. The processing time is reduced, while the quality of the image is increased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.