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-   -   Removing noise (https://www.dvinfo.net/forum/non-linear-editing-pc/55485-removing-noise.html)

James A. Davis December 4th, 2005 12:51 AM

How can I fix the - NIGHTTIME LOW LIGHT GRAIN IN DARK AREAS - in Post Production
 
Is there a way to do this? With After Effects, Premiere, Final Cut, etc?

Ruben Moreno May 24th, 2006 02:02 AM

I'm interested on this topic too. I thought I'd better reply on this thread rather than starting a new one so James could read the reply too.

I guess it's not easy to remove that noise, if it's dark there is not much to do, but I would like to hear from the pros.

Thanks in advance.

Glenn Chan May 24th, 2006 12:25 PM

Premiere and FCP don't have good noise removal tools IMO.

Use after effects 6.5 and use the "remove grain" filter. It's based on grain surgery I believe.

If you want a low-cost alternative and have Photoshop (non-Elements), use a Photoshop noise reduction tool like Noise Ninja or Neat Image. Unfortunately, batch actions/processing is VERY VERY slow. So is AE + "remove grain".

If your footage is 60i and you want to do the Photoshop thing, you probably want to handle the interlacing correctly (which would be annoying).

2- An alternative is to hide the noise with diffusion effects.

Emre Safak May 27th, 2006 08:55 AM

If you don't mind getting your hands dirty, avisynth offers the best results, because hackers are constantly making new filters for this sort of thing. You can keep abreast of developments here. Most recently I used FRFun7 on an underexposed DV clip, and it worked as well as could be expected.

Video denoisers differ from image denoisers; the former can exploit the fact that noise can be averaged out temporally.


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