I'm working on a fitness video that was filmed in front of a full body green screen.
Most of the subject's body is in front of the green but some of her body overlaps the gym mat.
When I key out the screen and shrink the edges, only the area in front of the screen is being affected (as you would expect).
The only problem is, the area of the legs in front of the screen become slightly narrower than the area of the legs in front of the gym mat - quite noticeable in the final result.
Is there a trick to help prevent this?
Here is a (zoomed in) image of what I'm dealing with. The arrows indicate narrower vs. wider areas of the legs:
I'm following this YouTube tutorial: