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Most common technics for color restoration for old dvd? [AvsPmod]

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Hi there, i have one footage, is source was ripped from vhs i don't know, but i got it on dvd (.vob). I'm trying to restore in AvsPmod code and wondering what else could be add? I wanna say that time is no matter, the main aspect = most better restoration quality/color, so if i can run it for 1 week on my cpu - that's no problem.
My avspmod code:
PHP Code:

MPEG2Source("Cutted.mpg.d2v")
AssumeBFF()
Tweak(sat=1.2,coring=false,dither=true)
ColorYUV(off_y=-4)
QTGMC(preset="Placebo"SourceMatch=3Lossless=2MatchEnhance=0.75EdiThreads=1NoiseProcess=0ChromaNoise=false )
PreFetch(7

Some screenshots of original file:
https://i.imgur.com/R6LGDpP.jpg
https://i.imgur.com/YISmuoI.jpg
https://i.imgur.com/6BEFehM.jpg
https://i.imgur.com/xQyIzko.jpg
https://i.imgur.com/MqVKjaJ.jpg
Mediainfo cutted.mpg:
PHP Code:

Video
ID                                       
224 (0xE0)
Format                                   MPEG Video
Format version                           
Version 2
Format profile                           
Main@Main
Format settings                          
CustomMatrix BVOP
Format settings
BVOP                    Yes
Format settings
Matrix                  Custom
Format settings
GOP                     M=3N=15
Format settings
picture structure       Frame
Duration                                 
39 s 773 ms
Bit rate mode                            
Variable
Bit rate                                 
5 544 kb/s
Maximum bit rate                         
8 000 kb/s
Width                                    
720 pixels
Height                                   
480 pixels
Display aspect ratio                     
4:3
Frame rate                               
29.970 (30000/1001FPS
Standard                                 
NTSC
Color space                              
YUV
Chroma subsampling                       
4:2:0
Bit depth                                
8 bits
Scan type                                
Interlaced
Scan order                               
Bottom Field First
Compression mode                         
Lossy
Bits
/(Pixel*Frame)                       : 0.535
Time code of first frame                 
00:00:03:00
Time code source                         
Group of pictures header
GOP
Open/Closed                         Closed
Stream size                              
26.3 MiB (90%)
Color primaries                          BT.601 NTSC
Transfer characteristics                 
BT.601
Matrix coefficients                      
BT.601 

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