What filter to remove video noise would you recomment for this image (bmp included)

[arnuld]

Hi I am an real newbe on avisynt i have read some usermanuals how to load script an such basic things.

The question is:
What filter would you recommend on this image?
LINK 862 Kb zipped .BMP: (http://m1.314.telia.com/~u31415258/temp/sample.zip)
Does it exist such as filter that is able to remove the noise?

Ive tried a couple ov virtuldub filters in virtualdub and is not completly satisfied.

I captured in mjpeg quality 18 704x576 audio uncompressed PCM 44.1 KHz.


Junk you dont have to read ;).....

My project is to capture this tvshow 11 episodes â 30min from analog cabeltv (PAL) (captured 10 already).
And after that do some kind of filtering on the image (here i need your help :)).
Then resize the image from 704x576 into 720x576 and audio 44.1 to 48.0.
My capture card didn´t manage to capture in FULL 720x576 whitout dropped frames (probly my drivers).

I will also crop it on the sides and frameserv it into tmpgencoder.
and convert it into an compable PAL DVDfile 720x576.(2-pass VBR)

Then i will authur it into Sonic DVDit and put the episodes on 2 DVDs = 3 hours per dvd 4400Mb.

[r6d2]

I don't know for sure, but I'd give a try to UnDot() and Deen() before resize.

[Malevolent]

Undot would help some, and it's practically realtime, so no speed loss there.
I'd also give Vaguedenoiser a try, it's very detail preserving ang gentle filter, but hideously slow.
Convolution3D with a preset "movieHQ" or "animeHQ" might also be of assistance.

Since there's quite heavy noise, i'd propably go with:

Undot()
VagueDenoiser(Threshold=1.5,method=1,nsteps=6,chroma=True)
Convolution3d(Preset="MovieHQ").TemporalSoften(3,3,4,8,2)

...This of course might be overkill, but not having a sample clip to test on, it's a bit hard to say.
Easiest method to test this yourself would be to make a script loading your file + some filters. Then just open it with Vdub & see what the preview picture looks like. Takes about 20 seconds to test 1 filter combination :)




:devil:

[ronnylov]

Originally posted by arnuld
Hi I am an real newbe on avisynt i have read some usermanuals how to load script an such basic things.

The question is:
What filter would you recommend on this image?
LINK 862 Kb zipped .BMP: (http://m1.314.telia.com/~u31415258/temp/sample.zip)
Does it exist such as filter that is able to remove the noise?

Ive tried a couple ov virtuldub filters in virtualdub and is not completly satisfied.

I captured in mjpeg quality 18 704x576 audio uncompressed PCM 44.1 KHz.


Junk you dont have to read ;).....

My project is to capture this tvshow 11 episodes â 30min from analog cabeltv (PAL) (captured 10 already).
And after that do some kind of filtering on the image (here i need your help :)).
Then resize the image from 704x576 into 720x576 and audio 44.1 to 48.0.
My capture card didn´t manage to capture in FULL 720x576 whitout dropped frames (probly my drivers).

I will also crop it on the sides and frameserv it into tmpgencoder.
and convert it into an compable PAL DVDfile 720x576.(2-pass VBR)

Then i will authur it into Sonic DVDit and put the episodes on 2 DVDs = 3 hours per dvd 4400Mb.

Isn't the screenshot from the "Fasadklättraren" TV series?
I have also captured it but it was only 3 episodes of 60 minutes each.

I have recorded the 3rd episode of "Fasadklättraren" on SVHS tape and I will capture the same episode 2 times and blend the frames from each capture to reduce the noise. Then I'm going to use the convolution3d avisynth filter. Episode 1 and 2 is already completed, I captured the digital streams directly with a DVB-C card and then converted lossless to DVD.

Look here how to blend 2 video files: http://forum.doom9.org/showthread.php?s=&threadid=46104

I suggest using 48 kHz audio at capture if you want to put it on DVD.

[arnuld]

Originally posted by ronnylov
Isn't the screenshot from the "Fasadklättraren" TV series?


Yes it is I couldnt fool you ;)
I also captured another tvshow "Flexnes" its on 11 episodes but I didn´t find any clear image it was always indoors in that show.
But it´s the same noise so i went with an picture of "Fasadklättraren"
That was mutch easy´r to see the noise in. Fasadklättraren i will also do an DVD of, later on.

Thanx everybody for your help! This forum rocks.
I will try the things you have said and I´ll be back if i have an problem. :)

[d'Oursse]

you could also try GoldDust from Steady (or the other 2 denoiser plugin he wrote). It's a quite impressive plugin, even if it is slooooooow. I use it for all my vhs rip.

good luck !

[unplugged]

You need the best temporal denoise solution, I like much PeachSmoother because its little ghosting can be managed and most important doesn't produce posterization/pixelation shit like many others!

LoadPlugin("eDeen.dll")
LoadPlugin("LoadPluginEx.dll")
LoadPlugin("PeachSmoother.dll")
AVIsource( ... )

ConvertToYV12(interlaced=false)
eDeen(7,0,10,0,1,False) # Try to lower the 3rd value (10) to reduce chroma keying or increase to clean more (color only)
luma=Blur(1.0) # don't omit this! You can try between 0.7<>1.0
MergeLuma(luma)
ConvertToYUY2(interlaced=false)
PeachSmoother(NoiseReduction=35,Stability=0,DoSpatial=True)
Sharpen(0.5) # Optional

And look at the final speed too ;)