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Rotobrushing - is it the only way to cut out a figure in footage?

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russell birkett
Rotobrushing - is it the only way to cut out a figure in footage?
on Jan 13, 2015 at 6:32:29 pm

Hi all
I have a 4 minute vid, the majority of which has a man standing and talking - not very animatedly.
I need to cut him out for pretty much all the time he is on screen. Is rotobrushing the only way to do it (as there are a hell of a lot of frames) - or have I missed a trick somewhere along the line?
Thanks in advance
Russ


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Dave LaRonde
Re: Rotobrushing - is it the only way to cut out a figure in footage?
on Jan 13, 2015 at 6:36:51 pm
Last Edited By Dave LaRonde on Jan 13, 2015 at 6:46:35 pm

Nope, you didn't miss anything: if you really need the guy isolated from the background -- and you didn't plan ahead to shoot the guy on green screen -- Rotobrush is the way to go.

It's a LOT better than the alternative, rotoscoping by hand.

Dave LaRonde
Promotion Producer
KGAN (CBS) & KFXA (Fox) Cedar Rapids, IA


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Walter Soyka
Re: Rotobrushing - is it the only way to cut out a figure in footage?
on Jan 13, 2015 at 6:42:05 pm

Rotobrush IS the trick! Think about how long it would take to rotoscope with masks or paint tools. If the speaker is not very animated, you should be able to charge through pretty quickly with rotobrush.

Depending on the footage, you might be able to pull and composite a series of keys, though getting good edges will be a challenge.

Ideally, of course, this would have been shot for chromakey in the first place.

Walter Soyka
Designer & Mad Scientist at Keen Live [link]
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
@keenlive [twitter]   |   RenderBreak [blog]   |   Profile [LinkedIn]


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russell birkett
Re: Rotobrushing - is it the only way to cut out a figure in footage?
on Jan 13, 2015 at 7:00:10 pm

Thanks for your replies
i guess I should knuckle down and get it done then. It is proving to be the case that every frame is needing a little tickle to make it work - the rotobrush isn't as accurate as I had anticipated.
Thanks again
Russ


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Walter Soyka
Re: Rotobrushing - is it the only way to cut out a figure in footage?
on Jan 13, 2015 at 7:06:07 pm

Be sure to read the documentation [link], watch a video or two [link], and check out these tips [link]. A little time upfront learning all this will save you a lot of time doing the work!

Walter Soyka
Designer & Mad Scientist at Keen Live [link]
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
@keenlive [twitter]   |   RenderBreak [blog]   |   Profile [LinkedIn]


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russell birkett
Re: Rotobrushing - is it the only way to cut out a figure in footage?
on Jan 14, 2015 at 7:03:27 am

Thank you
I will be sure to read it all

Russell


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