This example will show you how to edit the seams in a layered panorama, created by PTGui, using Photoshop.
Consider the following detail of a stitched panorama:
As you can see, this couple has had their legs cut off. They appeared
only in one of two overlapping images, and the stitcher has placed the seam across their legs.
Fortunately they were entirely visible in one of the two overlapping images,
so we can restore their legs with some Photoshop surgery.