Image correlation / matching / alignment

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Ivan Shorokhov
Ivan Shorokhov 2015-4-27
评论： Ivan Shorokhov 2015-4-28
Hello everybody,
I have 2 similar images, but taken with 2 different cameras, so the intensity may vary, also small displacement may be presented.
Could you please suggest me, what are the best functions or algorithms can be used to match/correlate/ align 2 similar images with different intensity and small displacement.
I've heard about following functions: imregister() and imregtform(). Are the they suitable to do what I want, and is there anything else I need to know?
Best Regards, Ivan

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Image Analyst
Image Analyst 2015-4-27
Yes. Give them a try.
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Image Analyst
Image Analyst 2015-4-27
For simple translations you can use normxcorr2() - demo attached. But it's not as good as the two you mentioned for cases where there is more complicated movement.

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Alex Taylor
Alex Taylor 2015-4-28
I'd also check out imregcorr for the case of simple transformations up through similarly transformations.

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