GPUImagePicture with imageFromCurrentlyProcessedOutput doesn't get UIImage

Question

I'm using GPUImage for processing a local photo, I'm using this to initialize:

localImageSource = [[GPUImagePicture alloc] initWithImage:selectedImage];

Then I'm adding the filters and I can see it on the screen.

Problem is that I need UIImage to save it but when I call:

[localImageSource imageFromCurrentlyProcessedOutput]

I get nothing.

Please help!

Answer 1

Calling that with the filter itself apparently solve this problem:

[filter imageFromCurrentlyProcessedOutput];

Credits to brspurri