How to change color of colorbar's lower minimum value?

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Tunechi
Tunechi 2014-10-16
评论： Star Strider 2014-10-17
How can I change the minimum value color on the color bar? I'm getting white color for the lower values.
imagesc(x,y,value)
set(gca,'YDir','normal')
myColorMap = colormap;
myColorMap(1,:) = [1 1 1];
colormap(myColorMap);
colorbar;
ma=max(value);
mi=min(value);

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Star Strider
Star Strider 2014-10-16
You are getting a white color for the lower values because you defined:
myColorMap(1,:) = [1 1 1];
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Image Analyst
Image Analyst 2014-10-17
Why does your image have nan's in it anyway? What color do you want the nan's to appear as? I think an axes control might have a background or foreground color that appears if the pixels are nan's (so they mgiht be "transparent") but I'd have to check on that. I never deal with images that have nan's. Why do you have them?
Star Strider
Star Strider 2014-10-17
Tunechi — My pleasure!
I A — That’s new. I didn’t know about imagesc until now. I used contourf in my example.

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