MATLAB: Could I change the color of specific point

Question

Hi, all

I have a matrix 49×49,

It's contains 0~10000 value.

When I plot this matrix, use colorbar.

But the zero value point,I want to use white color to present this point.

How can I do?

Thanks.

Answer 1

Get the colormap, set 0 to white, then reapply it.

cm = colormap;
cm(0, :) = [255 255 255];
colormap(cm);