zero filling of a 4d matrix or how can I copy a matrix in a bigger one without for loops

Hi all I have a huge matrix A (256*256*256*4) and want to dilate this matrix to a bigger matrix B (320*320*320*4) matrix with my original data on the center and zeros around. The only way is to make 'for' loops? JCB

Answer 1

[Roger Stafford]

 B = zeros(320,320,320,4);
 B(33:288,33:288,33:288,:) = A;

[Jan]

A very Matlabish approach: Fast and compact.

Answer 2

[Jean-Christophe]

Quick, simple and efficient. Works like a charm. Tkx a lot Roger.