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    Evaluating the Perceptual Uniformity of Color Sequences for Feature Discrimination

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    Date
    2017
    Author
    Ware, Colin
    Turton, Terece L.
    Samsel, Francesca
    Bujack, Roxana
    Rogers, David H.
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    Abstract
    Probably the most common method for visualizing univariate data maps is through pseudocoloring and one of the most commonly cited requirements of a good colormap is that it be perceptually uniform. This means that differences between adjacent colors in the sequence be equally distinct. The practical value of uniformity is for features in the data to be equally distinctive no matter where they lie in the colormap, but there are reasons for thinking that uniformity in terms of feature detection may not be achieved by current methods which are based on the use of uniform color spaces. In this paper we provide a new method for directly evaluating colormaps in terms of their capacity for feature resolution. We apply the method in a study using Amazon Mechanical Turk to evaluate seven colormaps. Among other findings the results show that two new double ended sequences have the highest discriminative power and good uniformity. Ways in which the technique can be applied include the design of colormaps for uniformity, and a method for evaluating colormaps through feature discrimination curves for differently sized features.
    BibTeX
    @inproceedings {eurorv3.20171107,
    booktitle = {EuroVis Workshop on Reproducibility, Verification, and Validation in Visualization (EuroRV3)},
    editor = {Kai Lawonn and Noeska Smit and Douglas Cunningham},
    title = {{Evaluating the Perceptual Uniformity of Color Sequences for Feature Discrimination}},
    author = {Ware, Colin and Turton, Terece L. and Samsel, Francesca and Bujack, Roxana and Rogers, David H.},
    year = {2017},
    publisher = {The Eurographics Association},
    ISBN = {978-3-03868-041-3},
    DOI = {10.2312/eurorv3.20171107}
    }
    URI
    http://dx.doi.org/10.2312/eurorv3.20171107
    https://diglib.eg.org:443/handle/10.2312/eurorv320171107
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    Eurographics Association copyright © 2013 - 2021 
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    Theme by @mire NV
    System hosted at  Graz University of Technology.
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