I don't know how recolorization algos work, but a month or so ago, I saw this old 1900s image of a new York street that was colorized on reddit. Everyone on the

I don't know how recolorization algos work, but a month or so ago, I saw this old 1900s image of a new York street that was colorized on reddit. Everyone on the thread was commenting about how there was so much violet hue in every single person's dress in the photo. Iirc that recolorization was done by a neural net too. Then I realised what must've happened. There were tons of open air carts on the street selling eggplant. My guess is that the NN was either shown that or recognized that part of the image and colored almost everything else it saw using that as its base point. Not the best technique.