Matlab code for matching two images

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Karan Ratnaparkhi
Karan Ratnaparkhi on 24 Apr 2011
Commented: Image Analyst on 15 Nov 2019
Hey guys I need a matlab code to check if two images are matching or not? I tried correlation but it is nt working. Please help me with the code or tell me if there is any such kind function in matlab!!
  1 Comment
David Young
David Young on 24 Apr 2011
When do two images match? Do they have to be identical, or can there be some differences? In what way does correlation not work - do you get an error message, or is it that you are defining "matching" to mean something other than "highly correlated"?

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Answers (3)

Image Analyst
Image Analyst on 21 Aug 2014
Edited: Image Analyst on 21 Aug 2014
matches = A == B;
percentMatch = 100 * sum(matches(:)) / numel(matches);
This is for grayscale images. If it's a color image, the formula needs to be modified slightly.

Mangesh
Mangesh on 21 Aug 2014
the question states that, if i have images i.e A and B,and if i convert these two images in matrix form, then the matrix will match or not? if matches, then ok. if not then in what percent A matches with B????? I have the same que.

Chandrika yadav
Chandrika yadav on 15 Nov 2019
matches = A == B;
percentMatch = 100 * sum(matches(:)) / numel(matches);

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