how can i divide a matrix into parts using recursion?

I wanna divide a matrix into number of parts which are defined by a user by using recursion and show last result in form of image then combine back that matrices into original one .how can i achieve this please help me..

Answer 1

[Image Analyst]

Sounds like you're describing quadtree decomposition http://www.mathworks.com/help/images/ref/qtdecomp.html?s_tid=srchtitle. Are you?