They can opaque black out from several inches above the belly button to the knees yet leave enough of the perp to make sufficiently clear what is outrageously going on. I think that would be legal enough but maybe some atny's could chime in.
If the video partially obscured there is the opportunity to deny what occurred, seeing as the media is already trying to get ahead of the video and persuade people that you won’t be able to believe what you see I think it has to leave no doubt that a crime occurred (no wiggle room, no deals). Which is why I believe it will not be pornographic and pixelated.
https://www.nytimes.com/2018/03/04/technology/fake-videos-deepfakes.html
Here Come the Fake Videos, Too
Artificial intelligence video tools make it relatively easy to put one person’s face on another person’s body with few traces of manipulation. I tried it on myself. What could go wrong?
http://www.latimes.com/business/technology/la-fi-tn-fake-videos-20180219-story.html
Fake videos are on the rise. As they become more realistic, seeing shouldn’t always be believing
From fake news to fabricated video, can we preserve our shared reality?
SEARCH FOR SOLUTIONS The advent of inexpensive and readily accessible fabricated video production brings new meaning to the phrase ‘seeing is believing.’ Combatting falsified footage demands a shift among news outlets and news consumers, experts say.
http://thehill.com/policy/technology/374320-lawmakers-worry-about-rise-of-fake-video-technology
Lawmakers worry about rise of fake video technology