Colour invariance at a pixel

Finlayson, Graham D., Hordley, Steven D., Marchant, John A. and Onyango, Christine M. (2000) Colour invariance at a pixel. In: 11th British Machine Vision Conference, 2000-09-11 - 2000-09-14, University of Bristol.

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This paper addresses the question of what can be said about the colours in images that is independent of illumination. We make two main assumptions: Firstly, the illumination can be characterised as Planckian (a realistic assumption for most real scenes). Secondly, the camera behaves as if it were equipped with narrow band sensors (true for a large number of cameras). The resulting physics-based method results in a transformation of the original colour image to a grey-scale one which does not vary with illumination. We give results showing invariance under a range of illumination conditions.

Item Type: Conference or Workshop Item (Paper)
Faculty \ School: Faculty of Science > School of Computing Sciences
UEA Research Groups: Faculty of Science > Research Groups > Interactive Graphics and Audio
Faculty of Science > Research Groups > Colour and Imaging Lab
Depositing User: Vishal Gautam
Date Deposited: 26 Aug 2011 13:54
Last Modified: 20 Jun 2023 14:35

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