You don't make a carrot-cutting machine that can handle all the random shapes carrots come in. You make a variety of carrots that grows straight, you make a soil mix that's mostly sand, and you plant using extremely regular spacing and density.

Then the problem becomes how to cut the now pretty uniform carrots and reject the "bad" ones.

Same goes for any automation: you don't make a computer "do art", you devalue the concept of art itself, you muck up the relationships between artists and everyone else. You screw up licensing and the concept of credit for work. Then, you can have computer generated imagery for a low cost API token.