AVISynth denoising filters for HDV-Cam material

[SenorKaffee]

HDV-Cams need a lot of light or produce a lot of noise (even cams like the HV20).
Should I use a generic noise filter plugin to remove some of the noise or is there a plugin that specializes in camera noise?

[Blue_MiSfit]

well, remember the difference between grain and noise... grain is film grain in the emulsion of a real movie shot on (or transferred to at some point) film.

Noise is an electronic artifact introduced by gain on CCD or CMOS sensors (in your case).

Removing your noise is probably possible, I don't know of any plugins that are specifically tailored to post-processing footage that originates on digital video cameras. I would suggest fft3dfilter or its DirectX9 cousin fft3dgpu as a good starting place. It's a very effective and customizable filter with really only a few really important parameters.. Good documentation is available. I would imagine more chroma filtering would be a good idea, since a lot of the noise will show up in the chroma planes, and you can safely denoise chroma a lot more than luma.

Also good basics are RemoveGrain(mode=1), or maybe mode=2 for something stronger, or mode=3 for in between 1 and 2. Despite its name, RemoveGrain with these settings is a basic mosquito noise remover (very very fast), and won't really affect film grain very much, not that it matters in your situation.

Theres lots of denoisers out there. Try a few :)

Maybe post a sample?

~MiSfit

[eEXPERTxtreme]

I recently started using denoise filter built-in in TMPGEnc.
It's awesome forever!