Title :
Fast automatic white balancing method by color histogram stretching
Author :
Wang, Su ; Zhang, Yewei ; Deng, Peng ; Zhou, Fuqiang
Author_Institution :
Key Lab. of Precision Opto-Mechatron. Technol. of Educ. Minist., Beijing Univ. of Aeronaut. & Astronaut., Beijing, China
Abstract :
A white balancing method by adaptively stretching R, G and B color histograms is proposed. Different from the traditional white balancing methods which need to estimate illuminant, our method exploits the color content of image directly. Compared our method with Gray World, White Patch, Shade of Gray and 2nd order Grey Edge algorithms on 50 indoor images and 50 outdoor images, the proposed method is very simple and fast. It is suitable to be used in real-time imaging systems.
Keywords :
grey systems; image colour analysis; lighting; 2nd order Grey edge algorithms; Gray World; White Patch; color histogram stretching; fast automatic white balancing method; illuminant estimation; real-time imaging systems; Cameras; Histograms; Image color analysis; Image edge detection; Light sources; Real time systems; Automatic white balance; color histogram; histogram stretching; real-time imaging system;
Conference_Titel :
Image and Signal Processing (CISP), 2011 4th International Congress on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-9304-3
DOI :
10.1109/CISP.2011.6100338
