Colour displays for categorical images |
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| Authors: | Chris Glasbey Gerie van der Heijden Vivian F K Toh Alision Gray |
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| Affiliation: | 1. Biomathematics and Statistics Scotland, King's Buildings, Edinburgh, EH9 3JZ, Scotland, United Kingdom;2. Biometris, P.O. Box 16, 6700 AA Wageningen, The Netherlands;3. Department of Statistics and Modelling Science, University of Strathclyde, Glasgow, G1 1XH, Scotland, United Kingdom |
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| Abstract: | We propose a method for identifying a set of colours for displaying 2D and 3D categorical images when the categories are unordered labels. The principle is to find maximally distinct sets of colours. We either generate colours sequentially, to maximize the dissimilarity or distance between a new colour and the set of colours already chosen, or use a simulated annealing algorithm to find a set of colours of specified size. In both cases, we use a Euclidean metric on the perceptual colour space, CIELAB, to specify distances. © 2007 Wiley Periodicals, Inc. Col Res Appl, 32, 304–309, 2007 |
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| Keywords: | pseudo‐colour look‐up table perceptually uniform colour space RGB CIELAB colour quantization |
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