Need help fixing dot crawl and rainbowing

[Scyrous]

Hi there!

I'm working on a script for the anime ''Yu-Gi-Oh: Duel Monsters''. The NTSC source DVDs contain lots of dot crawling and rainbowing issues that I'd like to eliminate.

I've got an encoded sample by someone called DarkDream, which looks superb compared to the original DVDs. I'm using his encodes as a ''goal'' for my own encodes, in terms of quality.

And yes, I already asked DarkDream about the script he used. No reply yet and I'm likely not going to get one. :P

- Samples -

DarkDream (15mb): https://mega.nz/#!lMUzhQDB!Fql8JVwll...JaEiHx0VyZKoEk

DVD source sample (45mb): https://mega.nz/#!lA8lRDQS!4MtZwHQ9n...40TpzTumGw602U

This is my script so far:

checkmate(thr=20, max=1, tthr2=0).checkmate(thr=10, max=1, tthr2=0)
Bifrost(interlaced=true)
tfm(order=-1).tdecimate(mode=1,hybrid=0)
Crop(22, 6, -4, -4)
Spline36Resize(640, 480)
Santiag() #Optional
Deen("c3d",0,3,2)
FastLineDarkenMOD(strength=40)
LimitedSharpenFaster(ss_x=2.0, ss_y=2.0, strength=30, overshoot=0, undershoot=0, soft=0, edgemode=0)

It looks somewhat good but the dot crawl and de-rainbow filter need a lot of tweaking. Footage is also a lot less sharper than the DarkDream encode for some reason, even when the strength parameter of the sharpener filter is bumped a lot. In fact, any help regarding the filters in my script would help. Better alternatives, parameters, etc.

I figured calling the checkmate filter twice would help out but I'm most likely wrong. Seems to cause more artifacts to appear.


Thanks in advance!

[kuchikirukia]

Try Tcomb. There's a guide on how to find the settings in the wiki. Go low, it does artifact.

Also, this doesn't need sharpening, and line darkening is cancer.
I'd use smdegrain(prefilter=0, thSAD=70) to clean up the noise. And a light high bit depth debanding never hurts. Gradfun3 is a staple for me.

[Scyrous]

Originally Posted by kuchikirukia

Try Tcomb. There's a guide on how to find the settings in the wiki. Go low, it does artifact.

Also, this doesn't need sharpening, and line darkening is cancer.
I'd use smdegrain(prefilter=0, thSAD=70) to clean up the noise. And a light high bit depth debanding never hurts. Gradfun3 is a staple for me.

Thanks for the recommendations. The source by itself doesn't need sharpening, but when checkmate and other filters are applied it definitely does.

Edit: TComb is useless to me since it only works on dot crawl / rainbowing that was introduced after the telecining process. In my source it's done prior. SMDegrain results in hideous gray artifacts all over the frames..

@real.finder

DDcomb won't even load... Says there is no such function (even though I pasted the script in my plugin folder as always).

[real.finder]

DDcomb

[LemMotlow]

what's this crap with mpeg in mkv containers? Think Ill pass. Pain in the butt.

[Wilbert]

Drop me a message when you put up a sample of your dvd stream somewhere (trimmed vob file), then i will reopen the thread. If you don't have a sample, please read the rules (rule 6).