A number of people have asked me whether MATLAB can add text to heatmaps to show the exact values. This is very easy to do, however, making a the text robust to resizing, zooming and other operations is a little trickier.
This example shows how to add text to the heatmap and also includes an M-file that shows how to handle zooming and resizing.
Robert Henson (2021). Heat Maps with Text (https://www.mathworks.com/matlabcentral/fileexchange/15877-heat-maps-with-text), MATLAB Central File Exchange. Retrieved .
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