Editing colors in a colormap
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In my code, I'm using the imagesc function to create a changing colormap as a movie. I have created a manual map that goes from the white to black scale. However, there are certain parts of the colormap that I would like to manually make a color that does not fall in the white to black range, such as blue. I need to do this within my code, so that the code can capture the image as a frame. How would I accomplish this?
Thank you.
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Adam
on 28 Jan 2019
How do you have your colourmap currently? If you have it as an e.g. 256x3 matrix of colours then you can just set e.g.
myColourmap( 100,: ) = [0 0 1];
to make the 100th index colour blue.
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