Creating a video effect template A friend of mine has a Gopro and something happened to the lens last weekend. We didn't realise that it was damaged and now we have a bunch of videos of our camping trip with a circular smudge looking thing in the centre of the screen. 

The smudge gives the centre of the picture a blur.

Is there a way that I can set up a template so that I can make some changes to just the section that it is damaged in an attempt to correct the blur. Once I have found the best settings I would be able to reuse the template for all of the videos. I'm sure it won't fix it perfectly but I would like to try it. 

If anyone can point me in the right direction (a link or tutorial) that would be great. I have the Adobe programs so preferably using those

Im a noob

Thanks for you time
If I understand your issue, it sounds as if you could duplicate the video to a second layer, apply whatever correction is needed to that layer, and reveal the layer where needed using a soft circular matte.