Shadow identification using colour ratios

Barnard, Kobus and Finlayson, Graham D. (2000) Shadow identification using colour ratios. In: 8th Color Imaging Conference: Color Science and Engineering Systems, Technologies, and Applications, 2000-11-01.

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Abstract

In this paper we present a comprehensive method for identifying probable shadow regions in an image. Doing so is relevant to computer vision, colour constancy, and image reproduction, specifically dynamic range compression. Our method begins with a segmentation of the image into regions of the same colour. Then the edges between the regions are analyzed with respect to the possibility that each is due to an illumination change as opposed to a material boundary. We then integrate the edge information to produce an estimate of the illumination field.

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 12:32
Last Modified:	22 Apr 2023 04:33
URI:	https://ueaeprints.uea.ac.uk/id/eprint/23576
DOI:

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