YouZign does a lot. Well, actually it does nothing. You have to do it. YouZign enables you to do some fascinating things.
I like the idea of dropping out a background, or portions of an image, and replacing the original background with one of my choosing.
This is a test video. It has a picture of an Art Deco building in downtown Daytona Beach. There is work being done inside, while permits are being applied for to do work on the outside. I converted the two lower windows to green in YouZign and replaced the plywood with a video.
Check out PaiInTheSky #daytonabeach for more examples. Or, to follow the project.