In 99% of cases, I doubt it the work done by Google would be enough to obtain copyright protection. Most of the time it isn't even something done by hand, it's something done by computer.
I think Google have done enough for it to count as a derived work. It's not just a compilation of images, they are put together in a very careful and precise way. As far as I know, it doesn't matter if something is done by hand or by computer - it's still copyrightable.