Coupled Retinex

Vazquez Corral, Javier and Finlayson, Graham D. (2019) Coupled Retinex. In: 27th Color and Imaging Conference, 2019-10-21 - 2019-10-25, Centre International de Conférences, Sorbonne Universités (CICSU).

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Retinex is a colour vision model introduced by Land more than 40 years ago. Since then, it has also been widely and successfully used for image enhancement. However, Retinex often introduces colour and halo artefacts. Artefacts are a necessary consequence of the per channel color processing and the lack of any strong control for controlling the locality of the processing (halos are very local errors). In this paper we relate an input to the corresponding output processed retinex image by using a single shading term which is both spatially varying and smooth and a global colour shift. This coupling dramatically reduces common Retinex artefacts. Coupled Retinex is strongly preferred in preference tests.

Item Type: Conference or Workshop Item (Paper)
Faculty \ School: Faculty of Science > School of Computing Sciences
UEA Research Groups: Faculty of Science > Research Groups > Colour and Imaging Lab
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Depositing User: LivePure Connector
Date Deposited: 12 Dec 2019 01:28
Last Modified: 17 Sep 2023 00:38
DOI: 10.2352/issn.2169-2629.2019.27.3


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