Apparatus and method for adjusting white balance in a digital imaging device
US8416316B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 11, 2009 |
| Grant date | Apr 9, 2013 |
| Priority date | — |
| Expiry date | May 27, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/6077
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for adjusting a white balance in a digital imaging device. The method including the steps of: analyzing a histogram of an image to which a white balance algorithm is to be applied; classifying the image, to which the white balance algorithm is to be applied, according to color distribution determination criteria; and the white balance algorithm is applied to the image in a customized manner based on results of the classification based on color distributions. The apparatus includes an image sensor unit for photographing a subject and for creating an original image; and an image processing unit for finding an achromatic color region through estimation of a color temperature of the original image, for extracting a white point of the achromatic color region, and for adjusting a white balance of the original image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.