Interactively Editing a Colormap in MATLAB

(Originally posted on Doug's MATLAB Video Tutorials blog.)

I recently wanted a colormap that was distinctive. I wanted the zero values to be one color while the negative and positive values were different shades. This video shows how to do this interactively. The skills shown here work for lots of different colormap tasks.

After I did this manually, I found there was a MATLAB File Exchange file that does this kind of thing for you.