Title :
Automatic white balancing using adjacent channels adjustment in RGB domain
Author :
Lam, Hong-Kwai ; Au, Oscar C. ; Wong, Chi-Wah
Author_Institution :
Dept. of Phys., Hong Kong Univ. of Sci. & Technol., Kowloon
Abstract :
Automatic white balancing is one of the key essential image pre-processing components in consumer digital still cameras, and it can highly improve the final image quality of the captured image. In this paper, a novel automatic white balancing algorithm based on the adjacent channels adjustment in the RGB domain using both luminance information and standard deviation of RGB components of the precaptured image is proposed. A light source model for evaluating different automatic white balancing methods is also described. The simulation results show that the proposed method can improve the final image quality of the captured image
Keywords :
brightness; cameras; image processing; statistical analysis; RGB domain; adjacent channels adjustment; automatic white balancing; consumer digital still cameras; image pre-processing; light source model; luminance information; precaptured image; standard deviation; Digital cameras; Digital images; Gold; Image analysis; Image quality; Image sensors; Layout; Light sources; Temperature sensors; Testing;
Conference_Titel :
Multimedia and Expo, 2004. ICME '04. 2004 IEEE International Conference on
Conference_Location :
Taipei
Print_ISBN :
0-7803-8603-5
DOI :
10.1109/ICME.2004.1394366