Help with Futurama Telecine - Printable Version

Help with Futurama Telecine - Printable Version

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RE: Help with Futurama Telecine - Selur - 07.07.2025

Adding:

clip = core.tivtc.TFM(clip=clip, PP=0)

in a custom section, before applying TIVTC, does remove the chroma ghosting, but introduces some other ghosting.

sRestore doesn't get stuck here. (sadly, it also leaves some ghosting)
One probably would need to manually adjust the field matching parameters per scene.
(Wobbly or similar might work, but isn't supported in Hybrid directly.)

Cu Selur

RE: Help with Futurama Telecine - Selur - 07.07.2025

Replace the Hybrid\64bit\vsscripts\smdegrain.py with https://github.com/Selur/VapoursynthScriptsInHybrid/blob/master/smdegrain.py and try:

# removing grain using SMDegrain

clip = smdegrain.SMDegrain(input=clip, tr=3, thSADC=2400, interlaced=True, opencl=True, device=-1, tff=False)

clip2clip = clip

clip2clip = qtgmc.QTGMC(Input=clip2clip, Preset="fast", opencl=True, TFF=False, FPSDivisor=2)

# Deinterlacing using TIVTC

clip = core.tivtc.TFM(clip=clip, PP=5, scthresh=18.99, mmsco=False, blockx=32, blocky=32, chroma=True, clip2=clip2clip)

clip = core.tivtc.TDecimate(clip=clip)# new fps: 23.976

Cu Selur

RE: Help with Futurama Telecine - protectron - 07.07.2025

Thanks, I'll see if I can figure that out.

For reference, Handbrake seems to handle it fine on default Detelecine and Interlace Detection settings.
Since the app is obscured I don't really know what's happening in the background.

The only issue I have with Handbrake is that it doesn't handle the progressive scan sequences as well and introduces jagged lines.
You can see the text in both examples from Handbrake (right) are unreadable

[Image: Untitled-1.png]

Curious how a degrain filter would influence detelecine?

RE: Help with Futurama Telecine - Selur - 07.07.2025

Degrain vs. Denoise is more a question of parameters than technique.

Cu Selur

RE: Help with Futurama Telecine - protectron - 07.07.2025

I replaced the file and followed the settings as close as I could. Some I do not think were represented.
I also shifted SMDegrain above Deinterlace in the filter order.
Unfortunately the progress got stuck at 14% and stopped advancing.

RE: Help with Futurama Telecine - Selur - 08.07.2025

No clue, what is causing Hybrid to freeze.
Is your system over- or underclocked? What CPU are you using?
Does the cpu&gpu usage still show usage? (maybe the progress output just gets messed up somehow)

Cu Selur

RE: Help with Futurama Telecine - protectron - 08.07.2025

I sort of figured out that bit: my file was on an external SSD. I think Hybrid must have momentarily lost connection with the drive which caused the progress to stop. Not sure why it was only happening in certain circumstances.

Anyway, running SMDegrain before TIVTC did not fix the ghosting issue.

RE: Help with Futurama Telecine - Selur - 08.07.2025

Did you use the settings I posted? ('tr=3, thSADC=2400,' is important)

RE: Help with Futurama Telecine - Selur - 08.07.2025

Okay, I can reproduce it. SMDegrain only fixes the chroma field/frame shift in some scenes and not all.
I'll also try using SMDegrain+QTGMC+sRestore, but I suspect that the only way to deal with this would be a custom script.

Cu Selur

RE: Help with Futurama Telecine - Selur - 08.07.2025

I tried SMDegrain+QTGMC+sRestore:
script: https://pastebin.com/dj8fWbTW
and it still has some glitches (not color glitches) in it, so a custom script might be the only approach to handle the clip properly.

# removing grain using SMDegrain

clip = smdegrain.SMDegrain(input=clip, tr=3, thSADC=2400, interlaced=True, opencl=True, device=-1, tff=False)

clip2clip = clip

clip2clip = qtgmc.QTGMC(Input=clip2clip, Preset="fast", opencl=True, TFF=False, FPSDivisor=2)

# Deinterlacing using TIVTC

clip = core.tivtc.TFM(clip=clip, mode=5, blockx=64, blocky=64, MI=64, clip2=clip2clip)

clip = core.tivtc.TDecimate(clip=clip, mode=7, rate=23.9760, dupThresh=0.04, vidThresh=3.50, sceneThresh=15.00, blockx=16, blocky=16)# new fps: 23.976

# Making sure content is preceived as frame based

clip = core.std.SetFrameProps(clip=clip, _FieldBased=vs.FIELD_PROGRESSIVE) # progressive

# denoising using mClean

clip = denoise.mClean(clip=clip)

does seem to work

Cu Selur