Jim,
It certainly can be done, and likely with any reasonably-priced software such as Photoshop. Guys on here who are good at that kind of stuff include Tommy Naccarato, Dunlop White III, and Mike Nuzzo (forgive me those who I left off).
While I've worked with plenty of aerials, I've never done any touch-up work like this (and have never used Photoshop).