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Old 9th November 2022, 12:42   #1  |  Link
AOA
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[SOLVED] QTGMC - Weird ghost artifacts

Hello.
I am trying to deinterlace Haruhi's DVD.
In the past I've already used QTGMC and didn't really have any problems with it but with this source I suddenly get some weird artifacts that seem to stem from lines in the past frame. I'm not fully experienced with interlaced material but also couldn't find other posts about a similar problem.


Code:
clip = core.lsmas.LWLibavSource("VTS_01_1.VOB")
qtgmc = hav.QTGMC(Input=clip, Preset='Slower', EZDenoise=1, NoisePreset="Slow", Sharpness=1, TFF=True, FPSDivisor=2, InputType=0,
NoiseProcess=2, GrainRestore=0.4, NoiseRestore=0.2, Sigma=1.8, NoiseDeint="Generate", StabilizeNoise=True)
rescale = insaneAA.rescale(qtgmc, dx=854, dy=480)
rescale.set_output()
Example output: https://slow.pics/c/UnhBOGf1

Is it possible to get rid of these "ghostings" or am I out of luck?

Last edited by AOA; 9th November 2022 at 19:19. Reason: solved
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Old 9th November 2022, 15:30   #2  |  Link
Selur
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Source probably isn't interlaced, but a mix of content. From just a single frame, no idea whether those artifacts can be avoided.
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Old 9th November 2022, 15:38   #3  |  Link
AOA
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Quote:
Originally Posted by Selur View Post
Source probably isn't interlaced, but a mix of content. From just a single frame, no idea whether those artifacts can be avoided.
Hm ok. Should I upload more screenshots, or should I upload a small clip of that scene to mega, ...?
Mixed content sounds very complex.
Do you have any tips for me, or should I just give up?

Edit: Waiting for moderator approval.

Last edited by AOA; 9th November 2022 at 16:07.
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Old 9th November 2022, 16:01   #4  |  Link
kedautinh12
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Upload small clip will easy to findout solution

Edit: if you update to mega will faster than Waiting for moderator approval

Last edited by kedautinh12; 9th November 2022 at 16:22.
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Old 9th November 2022, 16:24   #5  |  Link
AOA
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Quote:
Originally Posted by kedautinh12 View Post
Upload small clip will easy to findout solution

Edit: if you update to mega will faster than Waiting for moderator approval
Ok thanks for the tip.
Are 200 frames enough?
https://mega.nz/file/JRd3GZCB#cVK6qP...8JoGUpMBtJB-qA

This scene is much shorter with only 50 frames but the artifacts are a lot more noticeable:
https://mega.nz/file/BFFnUQAT#JPifgn...Du8XxfEPFZBSq4

Should I add the unprocessed clips?

Last edited by AOA; 9th November 2022 at 16:49. Reason: unprocessed question
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Old 9th November 2022, 17:45   #6  |  Link
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Quote:
Originally Posted by AOA View Post
Should I add the unprocessed clips?
Yes, it's always best to supply the original clip.
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Old 9th November 2022, 17:55   #7  |  Link
AOA
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Quote:
Originally Posted by Reel.Deel View Post
Yes, it's always best to supply the original clip.
Oh.
Here is the src for the second clip:
https://mega.nz/file/dUEx0bJb#CcyaMb...CSQ41-zuZaB__8
Greetings from the inability to cut a video without encoding. Sorry
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Old 9th November 2022, 18:38   #8  |  Link
mastrboy
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Originally Posted by AOA View Post
Oh.
Here is the src for the second clip:
https://mega.nz/file/dUEx0bJb#CcyaMb...CSQ41-zuZaB__8
Greetings from the inability to cut a video without encoding. Sorry
You need IVTC, not deinterlacing for this source. (It's 3:2 pulldown, aka telecined)
Though the clip is too short to determine if its CFR or VFR, TFM/Tdecimate can deal with both scenarios: http://avisynth.nl/index.php/TIVTC

(You can use QTGMC when fieldmatching fails in TFM with the clip2 parameter, but most sources don't need it.)
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Last edited by mastrboy; 9th November 2022 at 18:44.
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Old 9th November 2022, 19:18   #9  |  Link
AOA
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Quote:
Originally Posted by mastrboy View Post
You need IVTC, not deinterlacing for this source. (It's 3:2 pulldown, aka telecined)
Though the clip is too short to determine if its CFR or VFR, TFM/Tdecimate can deal with both scenarios: http://avisynth.nl/index.php/TIVTC

(You can use QTGMC when fieldmatching fails in TFM with the clip2 parameter, but most sources don't need it.)
Thank you so much. Found some great stuff in core.vivtc, which seems to be the solution.
No more artifacts and something new I can learn, YAY!!!
THANK YOU!!
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