Struggled with photo shop for a couple of hours last night but can't find a way to blend the edge of the scanned frames with the black background as you suggest. Any ideas on a way that would work?
Use the rectangular selection tool to make new layers out of each frame, select all the layers then go to Edit > Auto-Align layers.
Then Edit > Auto-Blend layers.
Struggled with photo shop for a couple of hours last night but can't find a way to blend the edge of the scanned frames with the black background as you suggest. Any ideas on a way that would work?