I'm trying to find a way to create an ar app, the goal of this app is to show a tattoo on the skin before and after the laser removal (there are scars a few days after the removal). I thought to do it with unity and vuforia but I'm not sure and I do not really know if it's really possible or not ... Thank you for your answers!
If I were you I would look into a few things related to what I'm trying to accomplish just to get an idea or a bigger picture of the problem/issue ( this case "create a tattoo removal app" )
-Learning to understand ( not to use) how to remove tattoo from a video editing software ( ie: After effect, Blender, Neutron, Apple Motion..) will give you an idea on how to tacke the problem you're trying to solve.
-Reading a few articles about how Computer Vision works (video link)
I don't know much about the subject, just a quick suggestions since i see no reply yet..
I think the reply from @kocheick is really useful. Let us know how the project goes and don't hesitate to ask any additional, specific, questions over here!