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How do I label the bright and less bright points in the image with different colors?

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JMS 2014-10-1

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Hello!

I have the below image that shows many points

 some of them are brighter than the other"less bright", how do I label them with different colors?

Thanks in advance.

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Image Analyst 2014-10-1

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colormap(jet(256));
colorbar;

You can use other colormaps - there are a bunch of default ones so pick one of those or else make up something custom.

Or maybe you'd be interested in overlays: http://www.mathworks.com/matlabcentral/answers/?term=tag%3A%22latex%22

http://www.mathworks.com/matlabcentral/answers/104889-how-to-overlay-a-foreground-image-over-a-background-image

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