Image:Selesnick h0.png
From MMVLWiki

Wavelet filter H0.
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License (http://www.gnu.org/copyleft/fdl.html), Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
Subject to disclaimers.