how can i show two images with different range with imagesc

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Efstathios Kontolatis 2016-11-8

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https://ww2.mathworks.cn/matlabcentral/answers/311194-how-can-i-show-two-images-with-different-range-with-imagesc

评论： LauraLee Austin 2016-11-8

I have two uint16 images with different range, let's say the one has a range from 0 to 1800 and the other from 0 to 2500. In order to see them I use imagesc but this will make the range between 0 to 65535 to both the images.Because I want to see the difference between them I use

caxis=[0,2500]

to both the images. But when I put a legend in the image the legend in the first image is from 0 to 1800, which means that the range of the shown image has the brighter parts at 1800. What am I doing wrong?

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Adam 2016-11-8

imagesc should automatically scale your plot to the min-max range of the data, bit the data type. So a 0 to 1800 plot should show a colorbar and caxis range that is already 0 to 1800 unless you have a rogue 65535 value in there somewhere as well.

I'm not sure what you mean about the legend. Legends have nothing to do with the color range. Do you mean a colourbar?