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Removing noise from subject on green screen in AE

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Nick Dyer
Removing noise from subject on green screen in AE
on Nov 14, 2011 at 8:11:09 pm

Hey guys,

I am working on creating a christmas card video for my work and my footage is very noisy/grainy. I tried using the remove grain tool but I could not get rid of the noise...here is a youtube link to the video so you can see exactly what I am talking about...any suggestions? I am very new to AE and having trouble getting my keys to come out right.







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Tudor "Ted" Jelescu
Re: Removing noise from subject on green screen in AE
on Nov 14, 2011 at 9:50:39 pm

AE's remove grain effect is pretty good. It will not be "click of a button" process though. You need to play around with the settings to get good results.
Unfortunately you will not be able to completely eliminate the grain unless you re-shoot. But grain is not such a bad thing- if you match the grain in your footage to your background plate then it will not stand out so much. A bit of color grading to better blend the elements in, a bit of light wrap on the chroma elements and it will look a lot different.

Tudor "Ted" Jelescu
Senior VFX Artist


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Nick Dyer
Re: Removing noise from subject on green screen in AE
on Nov 15, 2011 at 1:19:46 am

How do I go about color grading a light wrap? Are there any tutorials or can you give me some step by step help?


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Tudor "Ted" Jelescu
Re: Removing noise from subject on green screen in AE
on Nov 15, 2011 at 12:29:11 pm

Two different things.
Light wrap- here's a great tutorial:
http://maltaannon.com/articles/after-effects/ce-lightwrap/

Color Grading- now that's a wast subject.
Here's a couple of good places to start:
http://library.creativecow.net/articles/onneweer_barend/colorgrading_1.php


http://library.creativecow.net/tutorials/adobeaftereffects/color-correction

Tudor "Ted" Jelescu
Senior VFX Artist


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Brian Charles
Re: Removing noise from subject on green screen in AE
on Nov 15, 2011 at 2:28:14 am

The blocky noise in the jacket may be compression artifact either introduced in camera or in post.

I agree with Ted, the reduce noise filter has to be tweaked, you may need to use an adjustment layer or some other method to isolate the areas you want the noise removed from, otherwise you run the risk of making the whole image too soft.



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