Verisimilitude has always been an important goal of realist painters, and currently the majority of them are painting from photographs. Robots are increasingly learning or being programmed to do a similar job. They too are using photographs. This is a nascent technology, robots are being programmed to copy old masters too with paint. They will only get better.
Here is a video of the robot-Edavid, painting a head and signing his picture. Weird huh!