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How much chroma cleanup to apply?

 
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stevecaps



Joined: 29 Jul 2009
Posts: 2

PostPosted: Wed Jul 29, 2009 8:48 pm    Post subject: How much chroma cleanup to apply? Reply with quote

Is there such a thing as "too much" chroma noise reduction? Should I just leave it set at 100% or is there an advantage to leaving some chroma noise in?
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NVTeam



Joined: 01 Sep 2005
Posts: 2237

PostPosted: Thu Jul 30, 2009 7:59 am    Post subject: Reply with quote

In our experience, 100% is fine, so we made it a default. Luminance noise looks much more natural than color noise so leaving some noise in Y and suppressing 100% of it in Cr/Cb is usually a good idea, unless you want to achieve some special effects.

Hope this helps,
Vlad
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noise reduction for video and photos
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stevecaps



Joined: 29 Jul 2009
Posts: 2

PostPosted: Thu Jul 30, 2009 8:03 am    Post subject: Reply with quote

NVTeam wrote:
In our experience, 100% is fine, so we made it a default.


Thanks! Just wanted to make sure it wouldn't lead to a loss of subtle color variations. I want to avoid giving everyone a "pancake makeup" look.

100% it is, then!
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NVTeam



Joined: 01 Sep 2005
Posts: 2237

PostPosted: Thu Jul 30, 2009 8:10 am    Post subject: Reply with quote

The most important thing, of course, is to correctly build the noise profile. When the profile is accurate, 100% noise reduction in color channels is fine.

Vlad
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noise reduction for video and photos
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