removing digital noise

I was filming at DVCPro 50, 720, 24p and I accidently had the gain on medium. This was too much. Now I have a little bit of digital noise on my footage. It's not terrible, but it's enough to be annoying. What would you recommend?

too much too soon plugins has a noise reduction plug in. Its free but you really should donate some money if you like it

[www.mattias.nu]

There is also DE: Noise

[www.revisionfx.com]

works very well

Michael Horton
-------------------

i haven't tried DE:Noise,

but i am currently using Neat Video

[www.neatvideo.com]

which also works very well.


nick

DE:Noise works really well.

My new favorite is Video Purifier by Innobits. It can do more than just remove noise (deinterlacing, scaling).


-Dave

Thanks so much for your advice. I will check theses all out and make the leap in purchasing one. I downloaded the sample for neatvideo already. Wow want an improvement.

Innobits' Video Purifier does wonders to noisy video, especially when it must be compressed for DVD release, etc. But I find Purifier to have two limitations in its treatment of video. One limitation is that it clips Y' values at 235 in 8-bit (or at 940 in 10-bit). The other limitation is that it doesn't maintain 10-bit fine gradations. It's as if Purifier converts the 10-bit to 8-bit, does its thing in 8-bit, and converts back to 10-bit. There might be workarounds to the first limitation but not to the second one.

I've written a small report on the 10-bit problem including sample clips for checking if Purifier behaves the same on your system.

Dennis Couzin
Berlin, Germany

I second Neat Video. But iy costs $200, if I recall correctly through a fog of Vodka and pixels.

Harry

You can also try the degrainer in AE.



www.strypesinpost.com

I just worked on the BETA Test team for Red Giant's latest gem...Magic Bullet Denoiser:

[www.redgiantsoftware.com]

FCP / AE $99

Kills noise in a few clicks. Tell 'em Joey Morelli sent you

When life gives you dilemmas...make dilemmanade.

Quote
Harry
I second Neat Video. But iy costs $200, if I recall correctly through a fog of Vodka and pixels.

no just $99
or $49 for the "home" version (which is 8-bit rendering only)


dii read that Magic Bullet Denoiser only works on progressive material?
so while it might be good for some low-light noise,
would not a solution for cleaning up old VHS or other video sources.


nick

Since the OP is inquiring about / cleaning up 24p (progressive) footage, Denoiser is a VERY efficient inexpensive solution for her IMHO. I recommend it based on my personal tests done with the plug-in on 720p (also progressive) footage. STUNNING results. In the examples I have posted below, the footage was captured incorrectly and introduced grain / noise into the footage. Here are 2 short examples I personally created:

BEFORE (RAW - untouched footage):

www.digidojo.net/tut_stuff/denoiser_5994_RAW_H264.mov

AFTER (Denoiser / Magic Bullet Looks applied & tweaked):

www.digidojo.net/tut_stuff/denoiser_5994_DENOISER_after_H264.mov

When life gives you dilemmas...make dilemmanade.

To my eyes, grafixjoe's example with Magic Bullet Denoiser has an artificial, over-crispened look. Denoiser depends heavily on contraposing softening with sharpening. Red Giant posts an excellent Denoiser tutorial. Tellingly, the tutorial is almostly completely about techniques applicable to a single frame. Innobits' Video Purifier is a completely different animal. Its anti-noise processing does no softening, except as an option, and no sharpening at all. Purifier is pretty effective against sizzly video noise while preserving the naturalness of the image -- nobody's freckles are erased and there's no "National Geographic" look. Despite my gripes about Purifier, it has some advantages.

Dennis Couzin
Berlin, Germany

dcousin is over-analyzing...my posts are compressions of a compression (H.264 from a DVCProHD). Pretty darn free of noise for 2 clicks I would say. There are many parameters to tweak to taste so that is by no means all there is. My raw footage came out amazing and my client loved it so that's all that matters

Open thee mind and see what can be. There's more than one way to do ANYTHING.

When life gives you dilemmas...make dilemmanade.