I have a 9 foot wide white backdrop, If I do a wide shot and the side walls/ lights show in the shot, how would I duplicate the edge of the white to fill the sides. I am video taping a talent with green interactive computer and don't have a blue screen to do chromakey (I only have green). Basically I am looking to do the opposite of what a garbage matte does and extend the white to clean the shot. I am using premiere pro and some after effects (beginner in AE). Thanks
1) Shoot on the green screen and garbage mask out the non-green screen areas.
2) Shoot the backdrop with no one in front for a few seconds. Now record the talent portion. Freeze and flip the empty shot and line up with the edges to cover the garbage area. Mask the edge and feather it to cover up the transition.