Core Image is an awesome technology that enables app developers to do visual effects, image processing and features detection.
However its fast development sometimes leave the documentation for its filters out of sync or incomplete. But the clever engineers at Apple embedded up-to-date documentation in the framework itself. So CI Doc Viewer is born.
With CI Doc Viewer you can see what filters are available in your iOS device and more importantly the parameters, their types and a brief description.
If you are doing some development involving Core Image, CI Doc Viewer is your best friend!