Title :
Colour histogram equalisation via least-squares fitting of isotropic Gaussian mixture to uniform distribution
Author :
Kim, T. ; Yang, H.S.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol., Yuseong-Gu Daejeon, South Korea
fDate :
4/13/2006 12:00:00 AM
Abstract :
An algorithm to extend greyscale histogram equalisation to colour images is proposed. Unlike most current techniques, the proposed method can generate a uniform colour histogram, thus minimising disparity between histogram and uniform distribution. The method is applicable to higher dimensions. The results show that the approach is valid.
Keywords :
Gaussian distribution; image colour analysis; image enhancement; least squares approximations; colour histogram equalisation; colour images; greyscale histogram equalisation; isotropic Gaussian mixture; least-squares fitting; uniform distribution;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20064207
