DocumentCode :
2383290
Title :
Chromatic adaptation and white-balance problem
Author :
Hirakawa, Keigo ; Parks, Thomas W.
Author_Institution :
New England Conservatory of Music, Boston, MA, USA
Volume :
3
fYear :
2005
fDate :
11-14 Sept. 2005
Abstract :
The problem of adjusting the color such that the output image from a digital camera, viewed under a standard condition, matches the scene observed by the photographer´s eye is called white-balance. While most white-balance algorithms approach the problem using the coefficient law (von Kries), the coefficient law has been shown inaccurate. In this paper, we instead formulate the white-balance problem using Jameson and Hurvich´s induced opponent response chromatic adaptation theory. The solution to this white-balance problem reduces to a single matrix multiplication. The experimental results using existing illuminant estimation methods verify that the induced opponent response approach to solving the white-balance problem yields more neutral colors in the white panels of the Macbeth color chart than the traditional methods. The computational cost of the proposed method is virtually zero.
Keywords :
cameras; image colour analysis; matrix algebra; Macbeth color chart; chromatic adaptation theory; color adjustment; digital camera; illuminant estimation methods; opponent response approach; single matrix multiplication; white-balance algorithm approach; Computational efficiency; Digital cameras; Digital photography; Humans; Layout; Lighting; Photoreceptors; Testing; Visual system; Yield estimation;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Image Processing, 2005. ICIP 2005. IEEE International Conference on
Print_ISBN :
0-7803-9134-9
Type :
conf
DOI :
10.1109/ICIP.2005.1530559
Filename :
1530559
Link To Document :
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