Sliding max window and its average for multi-dimensional arrays

Question

I have a 60 x 21 x 700 matrix, where the 60 x 21 represent a pressure output x number of frames. I want to find the 2 x

Answer 1

One other approach using im2col

%// getting each 2x2 sliding submatrices as columns
cols = im2col(A,[2 2],'sliding'); 

%// getting the mean & reshaping it to 2D matrix
C = reshape(mean(cols),size(A,1)-1,[]); 

%// to find the maximum of the sub-matrix-means and its corresponding index.
[B,i] = max(mean(cols)); 

%// reshaping the corresponding sub-matrix to 2D matrix
mat = reshape(cols(:,i),2,2); 

Results:

>> mat

mat =

 6    10
 8     9

>> C

C =

1.5000    1.5000    1.5000    1.5000
2.0000    2.2500    2.7500    2.7500
2.0000    3.7500    6.0000    5.5000
1.7500    4.5000    8.2500    7.2500

>> B

B =

8.2500