How to use the library with CodeIgniter

[Ari-El]

I want to create a gif, but the use of the library with this framework has been extended to me, is there any experience?

I have added the file package in the code igniter library folder, creating the function intact in this way for example
$ this-> load-> library ('Color');
$ this-> load-> library ('Encoder');
$ this-> load-> library ('Frame');
$ this-> load-> library ('/ IO / FileStream');

But at the time of mail the function throws me

An Error Was Encountered

Non-existent class: Color