The name of the plugin came from the words (ca)mera (man)ipulation.
The library is simple to employ, albeit it does seem that applying filters to canvas can take ages for many photos.
Anyhow, once Caman gets faster, we’ll probably see an online “filter applier” soon enough.
The library has basic built-in functions like color correction; brightness; saturation; contrast; etc.
It’s also quite easy to extend the functionality of Caman.