I don't understand my own script

[detmek]

Its a simple script and it works, but I don't understand what some of the filters and place where those are putted do? Little help would be nice.
This is the part I don't understand:

s = last
f = s.fft3dgpu(sigma = 16, sigma2 = 12, sigma3 = 10, sigma4 = 8, plane = 4)

super = MSuper(s).degrainmedian()
superF = MSuper(f)

bv2 = MAnalyse(superF, isb = true, delta = 2)
bv1 = MAnalyse(superF, isb = true, delta = 1)
fv1 = MAnalyse(superF, isb = false, delta = 1)
fv2 = MAnalyse(superF, isb = false, delta = 2)

MDegrain2(s, super, bv1, fv1, bv2, fv2, thSAD = 800)


When I remove or change any parameter of filter, output changes.
Any explanations?
I'm looking for a denoise filter/script with good speed/quallity tradeoff. MCTemporalDegrain is great, but it is too slow. I need it with settings="high" and I get 1-2 fps.
FFT3DGPU is fast but it blurs too much.
Pure MDegrain does not denoise well.
P.S. Source is analoge TV capture from arial antena, not cable TV.

[rkalwaitis]

Try using MC_Spuds it does a good job and is a bit faster than MCTemporalDenoise. MCTemporalDenoise has a GPU option that can be set to true to gain some speed.

[detmek]

Yes, I know. 1-2 fps is with GPU=true.
I downloaded MC_Spuds last night but I got an error. Something about Clense?!
So, I tried do combine a few simple things that I saw in other scripts. The result is my little script which gives me 8-10 fps.
I didn't know many things about MVTools. Like, how much super clip determinates final result, or that I can denoise/degrain super clip.

[rkalwaitis]

The problem with clense is the Removegrain.dll I believe. It is caused by the removedirtdust function in side the script. The script is right its a dll issue. I think that you should use set postprocess = to false. This should allow you to use MC_Spuds.

Try this.

source = last
# Prefilter the clip
calm = source.invert("Y").levels(0, 0.5, 255, 0, 255, coring = false)
calm = calm.removegrain(mode = 17)
calm = calm.removegrain(mode = 17)
calm = calm.removegrain(mode = 17)

calm_super = calm.MSuper(pel=2, sharp=2, rfilter=2)
source_super = source.MSuper(pel=2, sharp=2, levels=1)

vb3 = MAnalyse(calm_super, isb=true, truemotion=true, delta=3, blksize=8, overlap=4, lambda=1000, search=3)
vb2 = MAnalyse(calm_super, isb=true, truemotion=true, delta=2, blksize=8, overlap=4, lambda=1000, search=3)
vb1 = MAnalyse(calm_super, isb=true, truemotion=true, delta=1, blksize=8, overlap=4, lambda=1000, search=3)
vf1 = MAnalyse(calm_super,isb=false, truemotion=true, delta=1, blksize=8, overlap=4, lambda=1000, search=3)
vf2 = MAnalyse(calm_super,isb=false, truemotion=true, delta=2, blksize=8, overlap=4, lambda=1000, search=3)
vf3 = MAnalyse(calm_super,isb=false, truemotion=true, delta=3, blksize=8, overlap=4, lambda=1000, search=3)
source.MDegrain3(source_super,vb1,vf1,vb2,vf2,vb3, vf3,thSAD=240,thSCD1=320,thSCD2=115,limit=180)

or another way to try with a prefilter

source = last
preNR=source.degrainmedian(limitY=2,limitUV=3,mode =1).fft3dfilter(wintype=1,bt=3,bw=32,bh=32,ow=16,oh=16,degrid=1,sigma=6.0,plane=0)
preNR_super = preNR.MSuper(pel=2, sharp=1, rfilter=4)
source_super = source.MSuper(pel=2, sharp=1, levels=1)
vb2 = MAnalyse(preNR_super, isb=true,truemotion=true,delta=2,blksize=16,overlap=4,pelsearch=2,search=2,searchparam=2,DCT=0,chrom a=false)
vb1 = MAnalyse(preNR_super, isb=true,truemotion=true,delta=1,blksize=16,overlap=4,pelsearch=2,search=2,searchparam=2,DCT=0,chrom a=false)
vf1 = MAnalyse(preNR_super,isb=false,truemotion=true,delta=1,blksize=16,overlap=4,pelsearch=2,search=2,searchparam=2,DCT=0,chroma=false)
vf2 = MAnalyse(preNR_super,isb=false,truemotion=true,delta=2,blksize=16,overlap=4,pelsearch=2,search=2,searchparam=2,DCT=0,chroma=false)
source.MDegrain2(source_super,vb1,vf1,vb2,vf2,thSAD=400,thSCD1=500,thSCD2=135,plane=4,limit=200)

tweaking the settings can really help a lot. I'm no expert on this, but it can make a big difference.

[detmek]

Thanks. I will try your script on another capture video this weekend.

[rkalwaitis]

those are two little different scripts dont run them together.

[detmek]

I noticed, thanks. The first uses RemoveGrain for prefiltered clip with Mdegrain3, the second uses Degrainmedian and FFT3DFilter as prefilter with Mdegrain2.
I will also try to replace FFT3DFilter with FFT3DGPU to gain some speed.
I have Athlon X2 4000+ @2.1GHz. Its quite slow, especialy when I use FFT3DFilter. Setmtmode doesn't help much as 80% speed increase of very slow is - slow.

[rkalwaitis]

You could dump both fft3dfilter and fft3dgpu for prefiltering and use DeGrainMedian(limitY=5,limitUV=7,mode=0), it is a very fast filter and may do a good job.

[detmek]

Degrainmedian has the same temporal radius as FFT3GPU(bt=3), right? I will try that, thanks.

[rkalwaitis]

hybridfupp is a fast script, it uses alternative ways of doing things. It uses Deen. You could try it too.

Didee helped me with the postprocess option of MC_Spuds. It works for me now. You just have to make sure you use Removegrain and Removedirt ver 0.9 or newer. But here is the catch and where I messed up. I did not remove the unused dlls that come in the packages. I simply used the following:

LoadPlugin("C:\Program Files (x86)\AviSynth 2.5\plugins\MC_Spuds\RemoveGrain\RemoveGrain.dll")
LoadPlugin("C:\Program Files (x86)\AviSynth 2.5\plugins\MC_Spuds\RemoveGrain\Repair.dll")
LoadPlugin("C:\Program Files (x86)\AviSynth 2.5\plugins\RemoveGrain v1.0 Pre\RSharpen.dll")
LoadPlugin("C:\Program Files (x86)\AviSynth 2.5\plugins\MC_Spuds\RemoveDirt\RemoveDirt.dll")

**all other dlls in the packages can not be in the removegrain or removedirt folders. That is the rub that prevents proper working of the dlls**