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How to cut out a red coat
Right,
I have about 3000 frames of rotoscoping to do and just wonder if there are any other (quicker) methods to achieve what I want. The brief is to turn full color video into a two color composite. The video contains a girl wearing a red coat running around a old building. I have currently gone frame by frame to mask out her red coat and place it on a duplicate BW layer underneath. Now, I have had loads of advice from people saying that you can use leave color (rubbish) and keying techniques (even worse) etc. This is footage dependent and our footage has alot of other reds in the scene. Also the quality of the results using the other methods is shocking compared to rotoscoping. I just want to know if its something i’m doing wrong with the other techniques or that to get the quality I want I’ll just have to carry on frame by frame.
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3 Replies
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I guess it depends a lot on where you want to get to, and the budget.
[edhaydenlannon] “The brief is to turn full color video into a two color composite.”
Isn’t a two-color composite “just” an image with color simulated from just two color sources (instead of video’s 3 -color rgb / yuv) ?
If so, you could duplicate the footage layer, turn each layer into a color (using levels, or whatever colorise effect you like. If you want a neutral tone in currently-neutral areas, then you go for complementary pairs like red / cyan, blue / yellow, green / magenta ..
If you really wanted to “kill” the red)(s)you could use just green and blue.Then combine the layers by using a transfer mode like “add” ..? This would strictly be a two-color composite image – not sure why that would imply taking out the red coat …?
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Thanks guys for your tips, I think i used the wrong language, by two colour composite I meant BW video except her red coat which needs to be er… red. Sorry, my bad
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Ah, so the “Sin City” effect. I’d recommend the garbage matte approach, personally.
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