Fix Inverse Telecined DVD color ghosting

[Fedex]

After IVTC this DVD with Handbrake, there is some very noticeable color ghosting. You can see the ghosting even without IVTC



IVTC

[Attachment 68295 - Click to enlarge]

Original interlaced

[Attachment 68296 - Click to enlarge]


How can i fix this color ghosting?

[manono]

You should always post an untouched sample, 10 seconds or so showing the problem. You can cut it using DGIndex.

[Fedex]

You should always post an untouched sample, 10 seconds or so showing the problem. You can cut it using DGIndex.

Okay so i got DGIndex but now how do i trim the sample?

[jagabo]

Handbrake doesn't handle interlaced YV12 chroma properly under most circumstances. Don't let it do any filtering and encode interlaced. It might work for that.

[manono]

To cut a VOB using DGIndex:
1. Open a VOB (File->Open, scroll to VOB->OK)
2. Scroll to a section with steady movement and use the [ and ] buttons to cut a small section.
3. Go File->Save Project and Demux Video.
4. Toss the D2V project file and audio and make available the M2V that was created. You can upload it here.
I don't use Handbrake. Ordinarily IVTCs are done using AviSynth.

[Fedex]

To cut a VOB using DGIndex:
1. Open a VOB (File->Open, scroll to VOB->OK)
2. Scroll to a section with steady movement and use the [ and ] buttons to cut a small section.
3. Go File->Save Project and Demux Video.
4. Toss the D2V project file and audio and make available the M2V that was created. You can upload it here.
I don't use Handbrake. Ordinarily IVTCs are done using AviSynth.

Alright. I'll send the sample tomorrow as im going to sleep right now. I have tried using AviSynth but i cant manage to set it and its IVTC filters up so if any of you could tell me how to set them up properly it would be nice

[manono]

You have it installed already? Then a basic IVTC script after you've made the D2V project file might go:

MPEG2Source("Movie.d2v")
TFM()
TDecimate()

You'll need the DGDecode.dll and the TIVTC filter.
The doc for both filters are among the best in the AviSynth world and worth reading 3 or 4 times.

[Fedex]

You have it installed already? Then a basic IVTC script after you've made the D2V project file might go:

MPEG2Source("Movie.d2v")
TFM()
TDecimate()

You'll need the DGDecode.dll and the TIVTC filter.
The doc for both filters are among the best in the AviSynth world and worth reading 3 or 4 times.

Should i use Avisynth or Avisynth+??

[Fedex]

To cut a VOB using DGIndex:
1. Open a VOB (File->Open, scroll to VOB->OK)
2. Scroll to a section with steady movement and use the [ and ] buttons to cut a small section.
3. Go File->Save Project and Demux Video.
4. Toss the D2V project file and audio and make available the M2V that was created. You can upload it here.
I don't use Handbrake. Ordinarily IVTCs are done using AviSynth.

Alright here it is. Keep in mind the problem is only in the animated parts

[Fedex]

Well i tried inverce telecining with manono's code but i still get the color ghosting. My best bet is that chroma has been telecined some other way. Or maybe interlaced some other way.

[Attachment 68299 - Click to enlarge]

[Sharc]

The source looks borked to me. Blended fields all over, probably due to some earlier bad framerate conversion.
Perhaps some improvement is possible with something like:

QTGMC() #or yadif(mode=1)
sRestore(frate=23.976)

[Fedex]

Using your script i get

Script error: there is no function named "sh_GetUserGlobalIMTint"
(QTGMC.avsi, line 380)

[jagabo]

You probably need Zs_RF_Shared.avsi (or an updated version).

https://forum.doom9.org/showthread.php?t=174121

And yes, your source is messed up. It's a PAL to NTSC conversion with field blending but has even more blending than normal. QTGMC.SRestore() will help a lot (and give smooth motion) but there will still be some blending.

[Fedex]

The source looks borked to me. Blended fields all over, probably due to some earlier bad framerate conversion.
Perhaps some improvement is possible with something like:

QTGMC() #or yadif(mode=1)
sRestore(frate=23.976)

I tried you script but to no avail. It still has the same ghosting

[Attachment 68377 - Click to enlarge]

[Sharc]

The source looks borked to me. Blended fields all over, probably due to some earlier bad framerate conversion.
Perhaps some improvement is possible with something like:

QTGMC() #or yadif(mode=1)
sRestore(frate=23.976)

I tried you script but to no avail. It still has the same ghosting

[Attachment 68377 - Click to enlarge]

It's probably as good as it can get. If you step through the frames sequentially you will see that most of the ghosts are fixed but some ghosts still remain. As has been explained before this source has been screwed up (double blended fields) and can't be fully fixed.

For a smooth playback set sRestore(frate=25.0) as the original frame rate was most probably 25fps (PAL).