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Footage becomes noisy in AE?

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Sven De Bruyne
Footage becomes noisy in AE?
on Apr 14, 2010 at 8:26:01 am

Hi guys,

I shot a bunch of nicely lit greenscreen footage the other day, it's shot using the JVC-HM100E in MOV format (with XDCAM EX). When I look at the footage in preview or quicktime or final cut, the colors stay nice and even (as they were recorded).
As soon as I import the footage in After Effects (CS4) however it becomes slightly darker, more saturated and noisier and becomes almost impossible to key nicely! I tried turning on the 'match legacy after effects quicktime gamma adjustments' but no luck. I tried exporting the footage to a TIFF sequence from Final Cut, but the same problem when I import it...

I'm running out of ideas here! Someone please help!

Thanks!
Sven


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Erik Waluska
Re: Footage becomes noisy in AE?
on Apr 14, 2010 at 5:25:22 pm

Sounds like a color management problem. Do you have color management turned on? If so, try turning it off or changing the setting to match your other apps.

-E


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Sven De Bruyne
Re: Footage becomes noisy in AE?
on Apr 14, 2010 at 6:02:44 pm

I don't have color management turned on. Working space is set to 'none'. Should I set it to something different here?

Thanks


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Sven De Bruyne
Re: Footage becomes noisy in AE?
on Apr 14, 2010 at 6:05:52 pm

Maybe an important fact: when I add a levels-adjustment to the footage, the histogram is already tampered with (you know, when there's 'lines' in your graph showing missing values)... How the hell can this happen?


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Erik Waluska
Re: Footage becomes noisy in AE?
on Apr 14, 2010 at 7:19:43 pm

That's very strange. I'm afraid I don't know what to tell you. Hopefully, someone else will be able to help. Sorry. Good luck.

-E


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Sven De Bruyne
Re: Footage becomes noisy in AE?
on Apr 14, 2010 at 8:06:12 pm

Wow, this was kind of my last resort. Hope someone else out here knows what the problem could be?!


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Erik Waluska
Re: Footage becomes noisy in AE?
on Apr 14, 2010 at 8:52:19 pm

You might want to post in the JVC Cameras and Sony XD Cam forums as well.



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Richard DuCasse
Re: Footage becomes noisy in AE?
on Sep 6, 2010 at 4:14:27 pm

I am having the exact same problem. Got some HDCAM EX clips, was not supposed to be green screen, but client shot some at the last minute. Can't get a clean key with Keylight. Looks OK until you look close. Very grainy and noisy at 100%.

Tried using After Effects Color Difference key, and it's less noisy, but not as good of a key as Keylight.

Did anyone ever come up with a solution to get rid of the noise in green screen keys with HDCAM EX?

Any info would be most appreciated.



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