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finding dissimilarity between two binary image in a range between 0 and 10

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Saad mohammad
Saad mohammad 2016-4-13
编辑： Muhammad Usman Saleem 2016-4-13
Hi everybody, I have a problem that requires finding the dissimilarity between 2 binary images I tried to use the euclidean distance but the dissimilarity was large. If anyone can help me to implement such a code with a dissimilarity range between 0 and 10

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回答（3 个）

Alex Taylor
Alex Taylor 2016-4-13
If all you care about is an elementwise similarity metric that is normalized to the range [0 10]
similarity = @(A,B) 10*sum(A(:)==B(:))./numel(A);
similarity([false true true],[true true true])
Note that there are much better similarity metrics out there, but seemed like most of what you cared about was the normalization between [0,10], not how well the similarity metric works.
Image Analyst
Image Analyst 2016-4-13
Alex's formula is simply the percentage of pixels in A that match in B.
Here's another one called the Sorenson-Dice Coefficient: http://www.mathworks.com/matlabcentral/answers/68720#answer_80012
See Answers questions on it
Muhammad Usman Saleem
编辑：Muhammad Usman Saleem 2016-4-13
Absolute difference of two imagescollapse
Z = imabsdiff(X,Y)
About best selection method for image differences
http://www.mathworks.com/matlabcentral/answers/230382-what-is-the-best-algorithm-to-find-difference-between-two-images
Compare differences between images
h = imshowpair(A,B)
a lot of useful links
http://stackoverflow.com/questions/22296670/difference-between-two-images
http://stackoverflow.com/questions/8938817/image-comparison-using-matlab
https://www.researchgate.net/post/Differences_between_two_images_in_MATLAB
http://stats.stackexchange.com/questions/92303/how-to-calculate-disparity-of-two-images-in-matlab

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