error in calculating distance

i have two matrices A,B

i calculate euclidean distance

by

Distance=EuD( A,B)

i get answer

but if i have 4 matrices and have to compare with B mhow to perform

i did

for n=1:4

Distance=EuD( ?,B)

end

plz tell what should be that question mark

finally i will have 4 distance values

please help

Answer 1

[Junaid]

Hi,

Similar question was asked.

http://mathworks.com/matlabcentral/answers/22844-how-to-find-euclidean-distance-in-matlab

I hope it will solve your problem.

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let say you have matrix A as your query. so you convert A to col or row vector by:

A= A(:);

Now there are 10 matrices you make one matrix of them called B. Where each column represent your first matrix. then one simple command will get Euclidean distance of A with all in B

A= repmat(A,1,size(B,2));
E_distance = sqrt(sum((A-B).^2));

[kash]

Thanks juniard, i have an image can u please tell how to find the centre region of that image