The Locus Filter

Deeb, Rada and Finlayson, Graham D. (2021) The Locus Filter. In: The Congress of the International Color Association, 2021-08-30.

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We study the design of a particular filter for digital photography, that we call the Locus Filter. It is built in a way that guarantees that the light in the scene after applying the filter stays on the Planckian locus. In this paper we provide a physical basis for designing such a filter based on the Wien approximation of Planck’s law. While locus filtered Planckian lights are on the locus, the amount they shift depends both on the locus filter and the colour temperature of the light. In experiments we show that real lights shift more or less as if they were Planckian in terms of the changes in their correlated colour temperatures.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: filter design,colour temperature,wien approximation,planckian locus
Faculty \ School: Faculty of Science > School of Computing Sciences
UEA Research Groups: Faculty of Science > Research Groups > Colour and Imaging Lab
Depositing User: LivePure Connector
Date Deposited: 06 May 2022 04:05
Last Modified: 06 May 2022 04:05

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