How to modify the showing colorbar range?

External program will be created a image, for example

image(rand(100,100)*10)
colormap(rand(10,3))

I will add a colorbar by my function, it simple

colorbar

Now I only show part of the colorbar by colorbar('Ylim',[1,6]). But I want to change the color of the 5th color block, let it same as the last color block. (the 5th color block of the right image should be changed to the last color (of left image)).

No need to care about the Ticks of the 5th color block, (maybe showing like '>5', or any other string).

Answer 1

[Image Analyst]

Try this:

image(rand(100,100)*10)
cmap = rand(10, 3)
colormap(cmap)
% Now put color in block 10 into block 5
cmap(5) = cmap(10);
colormap(cmap);
caxis([1, 6])

[zongxian]

In this way, I can get the what I want, thank you.