How to compare 2 different size binary images?
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I need to find traffic sign in an image. I segmented the image suuccessfully, so now I got cropped binary image of the sign:
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/166009/image.jpeg)
How can I check whether the sign exist in the image or not?
I tried using xcorr2, but I get better correlation comparing wrong sign.
Thanks in advance, Matanya.
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Image Analyst
2014-7-22
Sounds like a job for SIFT or SURF (in the Computer Vision System Toolbox).
See sections 15 and 22 here for papers on the topic:
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