denoising dv camera captures

sander815 · 3rd February 2010, 09:31

i would like some example scripts how to denoise and cleanup/sharpen this filmed interview with not much light and the noise the camera produces because of that

sander815 · 11th February 2010, 09:38

anyone?

i am using this now

Code:

LoadPlugin("C:\Program Files\AviSynth 2.5\plugins\LeakKernelDeint.dll")#take it from here: http://leak.no-ip.org/AviSynth/LeakKernelDeint/
LoadPlugin("C:\Program Files\AviSynth 2.5\plugins\FluxSmooth.dll")
Load_Stdcall_Plugin("C:\Program Files\AviSynth 2.5\plugins\yadif.dll")
Import("C:\Program Files\AviSynth 2.5\plugins\Seesaw.avs")

AviSource("H:\week 05.AVI")
#DirectShowSource("E:\week 04\voof bff")
#Info()

ConvertToYV12(interlaced=true) 
AssumeBFF()  #or AssumeBFF if necessary
Tdeint(1)

Spline36Resize(720,416,0,5,-0,-5)

a = last
b=a.degrainmedian(mode=2).VagueDenoiser(threshold=0.8, method=1, nsteps=6, chromaT=0.8)
SeeSaw(a,b, NRlimit=6, NRlimit2=7, Sstr=2.5, Slimit=5, Spower=5, Sdamplo=6, Szp=16)

Tweak(bright=-10, cont=1.2)

results ar eok, but i have no idea if this is correct

Ghitulescu · 11th February 2010, 09:48

There is no correct way. And quality is always something personal.

Most important in the first image is to correct the colours (I hardly believe this was shot with a DV camcorder).

I would let the second as it is - the colours looks on my PC LCD monitor quite good, there's extremely low low-light noise for the area of interest, and denoising it would kill the details, you have too much "on-screen faces" - the people would look unnaturally.

Blue_MiSfit · 11th February 2010, 10:53

Degrainmedian and seesaw are both pretty strong!

I'd suggest trying fft3dfilter / fft3dgpu with low sigma values.

If you have time, MDegrain2 will rock your socks off

~MiSfit

3rd February 2010, 09:31	#1 \| Link
sander815 Registered User Join Date: Apr 2006 Posts: 82	denoising dv camera captures i would like some example scripts how to denoise and cleanup/sharpen this filmed interview with not much light and the noise the camera produces because of that

11th February 2010, 10:53	#4 \| Link
Blue_MiSfit Derek Prestegard IRL Join Date: Nov 2003 Location: Los Angeles Posts: 5,989	Degrainmedian and seesaw are both pretty strong! I'd suggest trying fft3dfilter / fft3dgpu with low sigma values. If you have time, MDegrain2 will rock your socks off ~MiSfit __________________ These are all my personal statements, not those of my employer :)

11th February 2010, 09:48	#3 \| Link
Ghitulescu Registered User Join Date: Mar 2009 Location: Germany Posts: 5,769	There is no correct way. And quality is always something personal. Most important in the first image is to correct the colours (I hardly believe this was shot with a DV camcorder). I would let the second as it is - the colours looks on my PC LCD monitor quite good, there's extremely low low-light noise for the area of interest, and denoising it would kill the details, you have too much "on-screen faces" - the people would look unnaturally.