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Journal of Electronic Imaging

Perceptual color difference metric for complex images based on Mahalanobis distance
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Paper Abstract

In this paper, a perceptual color difference is presented as an alternative color difference metric for complex images instead of the conventional color difference equations. This color difference is derived based on Mahalanobis distance by using covariance matrices for differences of each color attribute. The covariance matrices for each class of images can be obtained by psychophysical experiments using just noticeable difference in paired comparisons. We compared the resultant matrices for different class of images and the information in the matrix can give very useful trends and clues about which kind of transformation can minimize the perceptual color difference in images when a transformation such as gamut mapping is required.

Paper Details

Date Published: 1 April 2001
PDF: 9 pages
J. Electron. Imag. 10(2) doi: 10.1117/1.1350559
Published in: Journal of Electronic Imaging Volume 10, Issue 2
Show Author Affiliations
Francisco Hideki Imai, Rochester Institute of Technology (United States)
Norimichi Tsumura, Chiba Univ. (Japan)
Yoichi Miyake, Chiba Univ. (Japan)

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