请教，matlab function---image cat&spider2008-01-23 02:41:57

A=[1,1
2,10];
image (A);
caxis ([0,10]);
colorbar;

请教，why caxis does not work here (it works if I use pcolor, or mesh, but not for image only)? if I would like to define the max and min of the colorbar here, what matlab function should I use?

Thanks.

image的颜色是由colormap决定的，用RGB真彩就简单点。