Colormap Test Image

Version 1.0 (44,3 ko) par Steve Eddins
Test image for evaluating perceptual effectiveness of a colormap for visualizing sequential data
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Mise à jour 20 juil. 2017

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The function colormapTestImage creates a grayscale image matrix that is useful for evaluating the effectiveness of colormaps for visualizing sequential data. The image has two sections. One is a linear ramp with a superimposed small-amplitude sinusoid. This section makes it easy to visually inspect a colormap for perceptual nonuniformities. The other section is a full-range linear ramp. The function can also display a colormap visualization.
The test image is inspired by and adapted from the test image proposed in Peter Kovesi, "Good Colour Maps: How to Design Them," CoRR, 2015. https://arxiv.org/abs/1509.03700

Citation pour cette source

Steve Eddins (2024). Colormap Test Image (https://www.mathworks.com/matlabcentral/fileexchange/63726-colormap-test-image), MATLAB Central File Exchange. Récupéré le .

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Créé avec R2017a
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Version Publié le Notes de version
1.0