MATLAB: How to implement this equation

equation

I have a equation,kindly tell how to implement this equation

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hi,

given I and J of size MxN

 M=6;N=4;
 I=rand(M,N);
 J=rand(M,N);
 II=I.^2;
 JJ=J.^2;
 P=I.*J;  %  its Element wise product !!
 numerator=sum(P(:));
 denominator= sqrt(sum(II(:))*sum(JJ(:)));
 NCC=numerator/denominator;

the result should be : 0<=NCC<=1,

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MATLAB: Hello everyone, i tried to understand and implement the sum product algorithm with following examples . can someone help me to implement this in matlab coding

The code is wrong in the innermost loop. I believe it should be:

   for ii=1:4
     if H(ii,j)==1 && i~=ii
       mul=mul*tanh(A(ii,j)/2);
     end
   end

You also have a missing ‘end’ for the outermost loop.

There seems no point in doing the repmat. You could use

   tanh(R(j)/2

since A(ii,j) is the same for all ii.

MATLAB: Can anybody help me understanding this mentioned line of code

The numerator is the Laplacian under the assumption that there is unit distance spacing between adjacent grid points of the pressure array P. The ‘DeltLngt^2’ in the denominator corrects this so that it becomes the Laplacian assuming the actual distance values between adjacent grid points in both the x and y directions. I don’t know what the ‘2’ means in the denominator.

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MATLAB: Hello everyone, i tried to understand and implement the sum product algorithm with following examples . can someone help me to implement this in matlab coding

MATLAB: Can anybody help me understanding this mentioned line of code

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