Cannot see files from Finder but I can from Terminal
Try sudo mv -r /path/to/.folder /path/to/newfolder
For example, if the folder was named .images, was located on your desktop, and you wanted to see it as images2 you would type sudo mv -r Desktop/.images Desktop/images2.

You could also try running defaults write com.apple.finder AppleShowAllFiles YES and then relaunch Finder, which would instead show all files and folders, including hidden ones (anything starting with a .).