We present a linear algorithm for the computation of the illuminant change occurring between two color pictures of a scene. We model the light variations with the von Kries diagonal transform and we estimate it by minimizing a dissimilarity measure between the piecewise inversions of the cumulative color histograms of the considered images. We also propose a method for lluminant invariant image recognition based on our von Kries transform estimate.
Computing von Kries Illuminant Changes by Piecewise Inversion of Cumulative Color Histograms
Lecca, Michela;Messelodi, Stefano
2009-01-01
Abstract
We present a linear algorithm for the computation of the illuminant change occurring between two color pictures of a scene. We model the light variations with the von Kries diagonal transform and we estimate it by minimizing a dissimilarity measure between the piecewise inversions of the cumulative color histograms of the considered images. We also propose a method for lluminant invariant image recognition based on our von Kries transform estimate.File in questo prodotto:
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