White balance method

Details White balance method White balance method

2005-04-11

2009-02-24

Vu, Ngoc-Yen T (Department: 2622)

Television

Camera, system and detail

Combined image signal generator and general image signal...

C348S280000

Reexamination Certificate

active

07495696

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.

REFERENCES:
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patent: 2005/0122408 (2005-06-01), Park et al.
patent: 2000201277 (2000-07-01), None
Weng et al., A Novel Automatic White Balance Method For Digital Still Cameras, May 2005 IEEE, pp. 3801-3804.
Hu et al., A New Algorithm For Automatic White Balance With Priori, Dec. 2000, IEEE, pp. 109-112.
Liu et al., Automatic White Balance For Digital Still Camera, IEEE Transactions on Consumer Electronics, vol. 41, No. 3, Aug. 1995, pp. 460-466.
Chikane et al., Automatic White Balance For Digital Still Cameras, Journal of Information Science and Engineering, vol. 22, May 23, 2005, pp. 497-509.

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