Estimating Illuminant Changes by Piecewise Inversion of Cumulative Color Histograms

We present a new linear algorithm for the computation of the illuminant change occurring between two color images. We approximate the light variations by the von Kries diagonal transform, whose coefficients we estimate by minimizing a dissimilarity measure between the piecewise inversions of the cumulative color histograms of the considered images. We provide an analysis about the accuracy of our estimate and we explain how to use it for illuminant invariant image retrieval.

Titolo: Estimating Illuminant Changes by Piecewise Inversion of Cumulative Color Histograms
Autori: 
Lecca, Michela
Messelodi, Stefano
Data di pubblicazione: 2008
Abstract: We present a new linear algorithm for the computation of the illuminant change occurring between two color images. We approximate the light variations by the von Kries diagonal transform, whose coefficients we estimate by minimizing a dissimilarity measure between the piecewise inversions of the cumulative color histograms of the considered images. We provide an analysis about the accuracy of our estimate and we explain how to use it for illuminant invariant image retrieval.
Handle: http://hdl.handle.net/11582/3665
Appare nelle tipologie:5.12 Altro

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http://hdl.handle.net/11582/3665
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