image compression using DWT

sir how can we compress image using descrete wavelet transform??

is that attached file is correct?? how do i check if image compressed or not??

Answer 1

[Walter Roberson]

No it is not correct.

1. There is already a dwt routine in one of the toolboxes. Calling your code dwt.m is at the very least going to be confusing, and could well interfere with other routines.
2. code that starts with "clear all" is always broken.