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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Abstract

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
URI:	https://ueaeprints.uea.ac.uk/id/eprint/23458
DOI:

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