Function scalar2colormap is designed to transform 2D scalar image into a monopolar or bipolar RGBA image. Colormaps can be defined independently for negative, zero, and positive scalar values. Colormap can be imposed on a background image with a chosen transparency and cropped with an additional mask image. Colormaps are linear by default but function supports for non-linear mapping as well to further enhance polar differences. Optional output gives object handles for figure, axes, images, and colorbar for final tuning (titles, fonts, labels etc.) of the image.
Viljami Sairanen (2024). scalar2colormap (https://www.mathworks.com/matlabcentral/fileexchange/63669-scalar2colormap), MATLAB Central File Exchange. Retrieved .
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