Edges are cropped after stabilizing! HELP!

Well I stabilized my shot, paint job , and inverted the stabilize ( using planar tracker ) .
After all that I lost image on both sides/ picture is cropped ( they are black ) I cant recover them!

How do I get them back ??
Please help .

I think you cant, you should increase the comp frame format before stabilization to preserve the edges but i might be wrong.

There might be an option to preserve the edges, but you can always remerge it on top of the original footage.