How can I calculate my own colormap?

Hi!

I want to create a new color scale that will be used for mapping to a grayscale picture.

I have three equations for RGB values calculated by linear interpolation with 256 steps scale, but I cannot find the way to calculate it on MATLAB.

Any suggestion would be greatly appreciated.

Answer 1

[Image Analyst]

Make an N by 3 array. So

x = (0:255)';
redMap = your red formula.
greenMap = your green formula
blueMap = your blue formula
cMap = [redMap(:), greenMap(:), blueMap(:)];
colormap(cMap);

[Tanaporn Pipatnoraseth]

Thank you! :)