Help on adding the Imagine Library in Codeignighter

Hello everyone, long time user of CI but new to this forum.

I have been trying to integrate or add the Imagine Library into CI but have been very unsuccessful. Don't really get the "namespaces" and "use" concept I guess I just got use to CI that anything else just doesn't seem right.

Anyway if anyone can help I will really appreciated, and if anyone asks why not use CI image library well, I need more function specially when dealing with layers in animated gifs and pdfs and more control when it comes to rotating and other image manipulations that the basic CI image library can't do.

By the way I am using CI latest stable version 2.* can't wait for the stable 3.*

Again thank you in advance for anyone that can help.