Remove a filter from a photo
Hello,
I am not a photoshop user, I'm a video guy, but I have been using some stock in my videos lately and quite a few have a filter applied, and I don't have access to the originals, here is the kind of filter I am talking about,

I know this isnt a typical question of this forum, but quite frankly, I want to remove this filter. Restoring this photograph to a less artistic more true photo, help?
It looks like the green has been pulled down? I'm just wondering if someone that has more experience with color grading can tell me what has been done to this photo to give it this flat look.
thanks for any help!
