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Colour cluster analysis for pigment identification
Computer Image Analysis in the Study of Art
This paper presents image processing algorithms designed to analyse the colour CIE Lab histogram of high resolution images of paintings. Three algorithms are illustrated which attempt to identify colour clusters, cluster shapes due to shading and finally to identify pigments. Using the image collection and pigment list of the National Gallery London large numbers of images within a restricted period have been classified with a variety of algorithms. The image descriptors produced were also useddoi:10.1117/12.767210 fatcat:mi7scgaovvdexd265tkjsbgfhm