Imagesc change "background" color

Hello guys,

I have a simple question, how can I set "background" color to white? Or how can I set a color of points with a specific value - for example all ones will be white.

Best regards

a = rand(50);
b = zeros(10,50);
c = [b; a; b];
imagesc(c)
colormap jet

Answer 1

[Image Analyst]

Use a different colormap

cmap = jet(256);
% Make lowest one black
cmap(1,:) = 0;
colormap(cmap);