This is a refactoring of the excellent http://phpthumb.gxdlabs.com
Basically, i was in the need of having a namespaced version of PHP Thumb, and before i knew it i ended up with a refactored simpler version, of PHP Thumb.
Checkout the code, and give it a try, if your needs are the same. Everything should be pretty self explanatory.
As with the original PHP Thumb, my (re)work is released under MIT license.