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Your_Idol
21st August 2006, 15:22
I don't know avisynth too well and I could sit around changing parameters for days, so I thought I might just ask quickly here first.

My video file is interlaced and has lots of noisy dots on it.

I used this simple script with the help of Gordian Knot and added the lines, separate and weave, to resize with the interlacing intact:

# Created with Gordian Knot
#
# http://gknot.doom9.org

# PLUGINS
LoadPlugin("C:\Program Files\GordianKnot\DGMPGDec\DGDecode.dll")
LoadPlugin("C:\Program Files\GordianKnot\AviSynthPlugins\Convolution3d.dll")
LoadPlugin("C:\Program Files\GordianKnot\AviSynthPlugins\FluxSmooth.dll")

# SOURCE
mpeg2source("D:\Video.d2v", idct=0)

# CROPPING
crop(0,44,720,488)

SeparateFields()

# RESIZING
LanczosResize(720,224)

# DENOISING:
Temporalsoften(4,8,8,mode=2,scenechange=10)
Convolution3d("movielq")
FluxSmoothST(10,15)

Weave()

Of course this made my terrible video look heaps better. The only thing left now are the spots as shown in this picture:

Sample Frame.png (http://www.tempshare.zoomshare.com/album/tempphotopool/images/d24d016f207b5e7f1278d6029d131eba_11561696780/image.png)

Hope you can help me remove these masses of dots.

Mug Funky
22nd August 2006, 04:33
oh, god, it's hideous!

the dots are pretty small, so you could run fizick's despot on it with pretty conservative settings and lose most of them.

you might want to adjust the tracking on your VCR though... there's like 8 pixels jump between the first and second fields, which will look pretty bad on a TV and very much hinder any fixing you might want to run on the video.

Your_Idol
24th August 2006, 01:20
fizick's despot, thanks i'll look in to it.

I know about the "8 pixels jump" that was just one frame in the whole episode. I chose the frame as the sample just because it obviously showed the video was interlaced. I thought that people would think that the video was just panning down. How did you know it was a jump and not a pan down?

“oh, god, it's hideous!”

The video or the woman?

Your_Idol
30th August 2006, 08:15
Ok I tried "despot" and it did some good. It removed about half of the spots but i have been messing about with the settings and not getting anywhere.

I have read about what all the different parameters do but i can't get the parameters to make my movie look better.

Has someone used this plugin before that can help me remove my spots?

Your_Idol
3rd September 2006, 12:02
bumpp

Jeremy Duncan
3rd September 2006, 17:14
http://forum.doom9.org/showthread.php?t=59388

Didée
3rd September 2006, 18:53
RemoveNoiseMC might be well worth a try. It's a motion compensated denoiser that does a good job in despotting as well - as long as the spots are not too huge, but that's the general problem of despotting.

The RemoveNoiseMC thread is here (http://forum.doom9.org/showthread.php?t=110078&highlight=RemoveNoiseMC). Since the needed stuff to get it working is scattered over several threads, have a look at this post (http://forum.doom9.org/showthread.php?p=854401&highlight=RemoveNoiseMC#post854401).