Most apps display generic skeletal or anatomical images when the camera is moved over a specific body part.
Many apps require you to select the "victim's" gender or a specific body part (e.g., hand, chest) before "scanning" to make the resulting fake image appear more relevant. Popular Joke Apps for Download download camera x-ray clothes joke
Some developers use AR to pin ghost-like images onto the real-time camera feed to make the effect look more interactive. Most apps display generic skeletal or anatomical images