The computer will recognize a person or item. After first look the computer can ask what this is or who this is. After, each time there person or object is seen, regardless of change in certain colors, the computer will show the name of the item or person on screen. It is similar to face recognition.

Apple by Abhijit Tembhekar via CC BY 2.0

Portable computer by Chassisplans via Public Domain

Camera by OpenClips via CC0 Public Domain