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Masking footage without keying or rotoscoping.
Hey guys,
I need to mask out parts of some video footage. I have 4k footage a person and I want to overlay shots of crowds within him. However, I cant key the person out because it was shot in colored light, so the person I want to mask is the same color as the background. Ive tried, it only takes out half of the person, and its not a clean line.
Are the other techniques that could help me mask out the figure so I can add footage within the silhouette?
Thanks
Evan
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6 Replies
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Rotoscoping. Your title said no rotoscoping, but your post didn’t mention why you can’t do that. Keying and rotoscoping are different. Rotoscoping is basically keying manually. It take a lot of time and a lot of patience, but it seems like your only option.
You could try keying in multiple sections. Key the head area, key the torso, etc. might work. You could also try the Roto Brush Tool built in AE. But likely you’ll just have to manually rotoscope it.
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My boss really wants a process. Rotoscoping would just take too long.
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Well, I don’t know your footage, but it doesn’t sound like that’s a possibility. If it was shot on a greenscreen to key it, you could reshoot it to get a better key. If you need green lights on the talent, use a bluescreen. Wish I had a better suggestion, but I don’t.
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Perhaps multiple keys? Can you show a still from the footage?
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[Evan Worsham] “My boss really wants a process. Rotoscoping would just take too long.”
There’s also the possibility of outsourcing the rotoscoping. You’d need to figure out if that would be cheaper than a reshoot.
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Guys if anyone was wondering, There is something called a difference Matte and it worked very well. Anything that it doesn’t cover I can Rotobrush away very easily. Thanks for all the help!
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