I am using UIImagePickerController to allow the user to take a picture. I want to allow him/her to edit it afterwards but, whatever I do, I get nothing.
Here is my co
There is no way to enable filters by just changing property like allowsEditing = YES. It will only display a cropping tool. As per your screenshot it's look like you have integrated some buggy open source library and without looking at the source code it would be difficult to fix your center cropping bug.
Better to post some concrete detail about your implementation or switch to standard open source library.