[HELP] VHS - Top of picture bends

[HELP] VHS - Top of picture bends - Printable Version

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VHS - Top of picture bends - Miranda - 09.04.2024

Is there a way to fix this - the top of the video seems to bend and wobble in various scenes throughout the file.

sample video clip

RE: VHS - Top of picture bends - Selur - 09.04.2024

# Spot removal using SpotLess

clip = SpotLess.SpotLess(clip=clip, radT=3, pel=1)

# removing flickering using ReduceFlicker

clip = core.rdfl.ReduceFlicker(clip=clip, strength=3, aggressive=1)

# removing flickering using Small Deflicker

clip = fromDoom9.Small_Deflicker(clip=clip, preset=3, cnr=True)

should help, you can also try whether calling ReduceFlicker multiple times helps more
(did a quick test using 2x Small Deflicker fixes the flickering/bending in the top quite nice)

Cu Selur

RE: VHS - Top of picture bends - Bartoloni - 01.05.2024

or maybe use a frame syncronizer/tbc on source before acquisition to "alleviate" the effect.

RE: VHS - Top of picture bends - Miranda - 01.05.2024

The bend at the top of picture is on the master, and every VHS copy I have seen.

RE: VHS - Top of picture bends - i4004 - 17.05.2024

(01.05.2024, 18:20)Miranda Wrote: The bend at the top of picture is on the master, and every VHS copy I have seen.

well, it would be, if you only have one u-matic machine, then it's propagating error on everything beneath, so to speak.

but if it bends equally on every u-matic machine, then yeah, it's probably issue in the recording itself, which is possible.

and yeah, in that case no help from tbc.