digitalFAQ.com Forum - Deinterlace a DVD lossy using QTGMC hybrid?

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Deinterlace a DVD lossy using QTGMC hybrid?

HI
Im trying to deinterlace a DVD lossy using QTGMC hybrid.
Could someone explain what are the best settings.
Im trying to preserve as much quality as possible.
I hope to upscale it and transfer to blu-ray
Is the quality better from doubled framerate or not?
Any help would be greatly appreciated.

Note for context: VideoHelp thread on same topic is currently on post #12; waiting on proper re-done sample so targeted advice can be offered.

If you want quality , you most likely want to use the lossless mode of qtgmc, thus the most basic:

Quote:

# Note: Twice refined source-match with true lossless. Exact detail, but likely combing and shimmer
QTGMC( Preset="fast", SourceMatch=2, Lossless=1, Sharpness=0.4, TR2=2, EdiThreads=4)
SelectEven()

If it's a movie you may want to decimate to get 23.9 fps, thus

Quote:

QTGMC( Preset="fast", SourceMatch=2, Lossless=1, Sharpness=0.4, TR2=2, EdiThreads=4)
SelectEven()
TDecimate() ### TDecimate(mode=1) # for cartoon

for tricky vhs content i had great success with this:

Quote:

QTGMC( Preset="fast", SourceMatch=3, Lossless=2, Sharpness=0.2, TR2=3, EdiThreads=4)
SelectEven()
# Note: TR2=3 to keep fine details and keep certain oblique lines perfect (again tested on tricky vhs)

Thank you its starting to make sense.

Quote:

QTGMC ... SelectEven()

Is there a reason why you propose deinterlacing and then remove a field throwing away half of the information? An interlaced video consists on a field based time resolution having a vertical resolution that is half the resolution of the frame.

To OP: beware that lots of material on DVDs is coded interlaced but it is not.

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