How to split a matrix in "submatrices"?

How can i divide a matrix into submatrices of given dimensions in automatic way?

 example:
data=reshape(1:88,11,8);       %create a matrix
[mpixel,npixel]=size(data);    %matrix's dimensions
m=2;                           %rows of the submatrix
n=3;                           %columns of the submatrix
v_w=floor(mpixel/m);           %number of "vertical" submatrices
h_w=floor(npixel/n);           %number of "horizontal" submatrices
cropdata=data(1:v_w*m,1:h_w*n);%crop matrix that can be diveded using that mxn submatrices
%
newdata=mat2cell(cropdata,[m m m m m],[n n]);

This code work but if I have bigger matrix I must continue to explicit [m m m...],[n n n...] in the last command and it's crazy. How can i use the command mat2cell with a smarter way?

[Adam]

Why do you want to break your data up rather than just indexing into it and leaving it in one neat array?

[Francesco Boari]

Cause I need to have all the small matrices for other processing, in authomatic way. I can't call each time a part of the original matrix. The problem is a little bit more complicated then that in the example.

[Image Analyst]

Why not just use blockproc() and let that handle the getting of the submatrices?

[Francesco Boari]

I see the documentation of blockproc(), it processes block by block but at the end the output it's the input image/matrix.

Answer 1

[Guillaume]

As others have said, there may be no need to explicitly split the matrix, but if you must what is wrong with:

newdata = mat2cell(cropdata, repelem(m, v_w), repelem(n, h_w));

[Francesco Boari]

Thanks! It works. Meanwhile i have found a different way leaving, as someone said, the original matrix and indexing.