To make the masking job in Photoshop a little easier, you can:
- With the Matchphoto scene selected, hit the plus sign to make a new scene that’s a copy of it.
- Set that copy of the scene to a new style that has match photo background turned off.
- Output a TIFF or PNG of that scene at the resolution of the photo.
- With some manipulation in Photoshop, you can import that into your picture and turn it into a mask.