Formalizations of the retinex model and its variants with variational principles and partial differential equations

Edoardo Provenzi

doi:10.1117/1.JEI.27.1.011003

5 December 2017 Formalizations of the retinex model and its variants with variational principles and partial differential equations

Edoardo Provenzi

Author Affiliations +

Journal of Electronic Imaging, Vol. 27, Issue 1, 011003 (December 2017). https://doi.org/10.1117/1.JEI.27.1.011003

Abstract

Land and McCann introduced the retinex model as a computational theory of color vision. However, retinex details were described algorithmically rather than mathematically. Soon after the birth of retinex, Horn proposed a drastic simplification of the model, which, however, had the merit of being mathematically explicit and rigorous. As a consequence, at least two different interpretations of retinex appeared in the literature almost at the same time. This generated a lot of confusion about the name retinex that persists even now. The aim of this paper is to present an overview about the different interpretations and the corresponding mathematical formalizations of retinex in terms of variational principles and partial differential equations.

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Edoardo Provenzi "Formalizations of the retinex model and its variants with variational principles and partial differential equations," Journal of Electronic Imaging 27(1), 011003 (5 December 2017). https://doi.org/10.1117/1.JEI.27.1.011003

Received: 13 June 2017; Accepted: 7 September 2017; Published: 5 December 2017

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