is this code gives me compression??

sir is this attached code gives me compression? if yes, where the compression takes place and how ??

[Roberto]

http://en.wikipedia.org/wiki/Wavelet_transform

[Jan]

Slightly off-topic, but i never hesitate to cope with clear all: http://www.mathworks.com/matlabcentral/answers/16484-good-programming-practice#answer_22301