Over in the doom9.org forum Nick Hope asked for some help denoising a few seconds of underwater test video. Here a link to that thread:
Removing low-light noise/grain from DV
Here is a link to Nick's original video (I hope you don't mind my posting this link, Nick):
Original Video
This is a 19 MB file.
I tried to help, but ended up stumbling across all sorts of problems. Believe me, you don't want to spend any time reading the entire post I linked to above. What you do want to do, if you are interested in what denoised footage can look like, is to download this final result, also in PAL DV format:
De-noised Fish Footage
This is also a 19 MB file.
Put the before and after videos on the Vegas timeline, underneath each other, match the project settings to PAL DV, and then use either the track mute or track solo buttons to A/B between them while they are playing
There is no such thing as perfect de-noising, especially with video that started out with this much noise, but having done a lot of this, I think the results here are pretty good. Many thanks to everyone at doom9 for helping me with this and, as always, thanks to Nick for coming up with a great technical and artistic challenge.
P.S. The denoising was done with a free denoiser that is part of the AVISynth plugin called MVTools2. After denoising, I did a little sharpening in Vegas, using the Unsharp Mask plugin.
[edit on July 6, 2011]
I eventually created a better denoised result, and posted a link later in this thread. Here is that link, in case you miss it below:
Fish Denoised with MDegrain3 and then sharpened with LimitedSharpenFaster script + Color Curves
[edit]January 11, 2015 - Here is a link to my attempt to denoise this footage with Neat:
Denoised with Neat Video
Removing low-light noise/grain from DV
Here is a link to Nick's original video (I hope you don't mind my posting this link, Nick):
Original Video
This is a 19 MB file.
I tried to help, but ended up stumbling across all sorts of problems. Believe me, you don't want to spend any time reading the entire post I linked to above. What you do want to do, if you are interested in what denoised footage can look like, is to download this final result, also in PAL DV format:
De-noised Fish Footage
This is also a 19 MB file.
Put the before and after videos on the Vegas timeline, underneath each other, match the project settings to PAL DV, and then use either the track mute or track solo buttons to A/B between them while they are playing
There is no such thing as perfect de-noising, especially with video that started out with this much noise, but having done a lot of this, I think the results here are pretty good. Many thanks to everyone at doom9 for helping me with this and, as always, thanks to Nick for coming up with a great technical and artistic challenge.
P.S. The denoising was done with a free denoiser that is part of the AVISynth plugin called MVTools2. After denoising, I did a little sharpening in Vegas, using the Unsharp Mask plugin.
[edit on July 6, 2011]
I eventually created a better denoised result, and posted a link later in this thread. Here is that link, in case you miss it below:
Fish Denoised with MDegrain3 and then sharpened with LimitedSharpenFaster script + Color Curves
[edit]January 11, 2015 - Here is a link to my attempt to denoise this footage with Neat:
Denoised with Neat Video