What is the fastest way to convert mat to cell for the following algorithm?

I have a matrix of 256*256*57 3D matrix. I wanted to convert to cell of 1X5 and the first cell should contain 256*256 matrix, 2nd and 3rd cell should contain 256*256*10 , 3rd and 4th cell should contain 256*256*18. Could anyone please help me?

Thanks

Answer 1

[Walter Roberson]

output = mat2cell(YourMatrix, size(YourMatrix,1), size(YourMatrix,2), [1, 10, 10, 18, 18]);

Answer 2

[dpb]

Probably mat2cell altho I've not timed alternatives...

c=mat2cell(a,256,256,[1 10 10 18 18]);