Apparatus and method for adjusting auto white balance using effective area
AssigneeSamsung Electronics Co., Ltd.
InventorsSang Jo Lee, Young Su Moon, Ho Jin Lee
Life of this patent
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Abstract
An apparatus and method for auto white balance adjusting using an effective area. The auto white balance adjusting apparatus may extract a grey area from an input image, and select an effective area from the grey area according to color temperature and luminance, thereby performing white balance using the effective area. The auto white balance adjusting apparatus may perform white balance of the input image using image information of the effective area which is a more precise grey area, thereby improving the white balance.
Claims19
An apparatus adjusting an auto white balance, the apparatus comprising:
- a grey area extractor to extract a grey area by dividing an input image into a plurality of areas;
- an effective area selector to select an effective area with respect to an effect of a real light source, from the grey area;
- and
- a white balance performing unit to perform white balancing with respect to the input image by determining a white balance parameter from the effective area.
A method of adjusting an auto white balance performed by an auto white balance adjusting apparatus, the method comprising:
- extracting a grey area by dividing an input image into a plurality of areas;
- selecting an effective area with respect to an effect of a real light source, from the grey area;
- and
- performing white balancing with respect to the input image, using the auto white balance adjusting apparatus, by determining a white balance parameter from the effective area.
Dependencies are inferred from the claim text.