Looks like rotoscoping: https://en.wikipedia.org/wiki/Rotoscoping https://en.wikipedia.org/wiki/Rotoscoping. The closest you would get is maybe an edge detecti

Looks like rotoscoping: https://en.wikipedia.org/wiki/Rotoscoping https://en.wikipedia.org/wiki/Rotoscoping. The closest you would get is maybe an edge detection filter. Or AI rotoscoping: https://pld.reddit.com/r/vfx/comments/1h9wjdv/have_any_ai_rotoscoping_tools_reached/ https://pld.reddit.com/r/vfx/comments/1h9wjdv/have_any_ai_ro.... Or maybe EbSynth, as demoed by this guy: https://www.youtube.com/watch?v=tq_KOmXyVDo https://www.youtube.com/watch?v=tq_KOmXyVDo But it never looks as nice as the hand-drawn way.