Shadow Identification using colour ratios

Kobus Barnard, Graham D. Finlayson

Research output: Contribution to conferencePaper

50 Citations (Scopus)

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.
Original languageEnglish
Pages97-101
Number of pages5
Publication statusPublished - Nov 2000
EventEighth Color Imaging Conference: Color Science and Engineering Systems, Technologies, and Applications - Scottsdale, Arizona
Duration: 1 Nov 2000 → …

Conference

ConferenceEighth Color Imaging Conference: Color Science and Engineering Systems, Technologies, and Applications
CityScottsdale, Arizona
Period1/11/00 → …

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