I'd be tempted not to call the thing in the video above a robot. It's more like an automated bodiless limb, of a sort.
But I can't deny the feeling of awe when I see it paint portraits and pretty much anything else with the skill of a master artist.
The robot was developed by researchers from Keio University and is called e-David.
It doesn't actually paint itself though. Instead, it reproduces works of art, to an extent, much like a photocopier duplicates a page, only that it does it one brush stroke at a time.
E-David stands apart even from its peers though, because it can constantly readjust its stance.
Based on a camera feed, e-David keeps analyzing the paint strokes that have been added, and decides where the next stroke should go based on that. Watch the video above for a demo.