‘Allo, my name is Simon, and I like to do drawerings with the help of me cheeky robot, Mr. Deepfakes:

As PetaPixel explains,

They’ve achieved this by treating each facial feature locally first, and then the face as a whole, basically assigning a probability to each feature. That way you don’t need a professional sketch to generate a realistic-looking image, but the better the sketch, the better and more accurate the results become. What’s more, the software can work in near-real-time,