As known, MATLAB can plot graphics with colorbar and chosen colormap and also read/write images in RGB-scheme. And two color model are used, indexed (defined by double type C in range 0..1) and RGB.
How easy to define analytically function F:C->(R,G,B), i.e. r=r(c),g=g(c),b=b(c)?
With natural aasumptions: F(0)=(0,0,0),F(1)=(1,1,1) and F(?)=(1,0,0),.. F(?)=(0,1,1)
It would be helpful for intellectual colormaps....