Method and apparatus for auto white controlling

Details Method and apparatus for auto white controlling Method and apparatus for auto white controlling

2006-11-08

2010-10-05

Ho, Tuan (Department: 2622)

Television

Camera, system and detail

Combined image signal generator and general image signal...

C348S225100, C348S234000, C348S655000, C348S663000, C382S162000

Reexamination Certificate

active

07808531

ABSTRACT:
An auto white controlling method and apparatus are provided. The method includes providing a plurality of feature points having color features of an image if the image includes an object having dominant chroma; detecting a first illuminant according to the feature points; calculating a mean chroma of data showing a chroma difference within a threshold value with a chroma of the first illuminant among data constituting the image; and providing a second illuminant by mapping the mean chroma to an illuminant locus. The apparatus includes a feature-analyzing module that provides a plurality of feature points having color features of an image; and an illuminant-detecting module that detects a first illuminant by using the feature points, calculates a mean chroma of data showing the color difference within a threshold value with the chroma of the first illuminant, and provides a second illuminant by mapping the mean chroma to an illuminant locus.

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