Constant Vertical Jitter

[BillyJeanB]

Hi,

I'm having an issue with a recording on a VHS (SP mode) where it is jittering up and down constantly every other frame, the interlaced file looks unusual, when deinterlacing with QTGMC it looks ok but the jitter is still there and there is some artifacts in the details. It seems like some things move separately than others. I attached two clips, is there a name for this? I looked at other threads but couldn't find an identical issue. It seems to be specific to this specific part of the tape. Is this for a stabilization plugin or something else?

Thanks.

[poisondeathray]

Did you try another machine ?

ConvertToYV24(interlaced=true)
assumetff()
separatefields()
e=selecteven()
o=selectodd().crop(0,0,0,-1,true).addborders(0,1,0,0)
interleave(e,o).weave()
#ConvertToYUY2(interlaced=true)

you can shift a field vertically to align it

If you use QTMGC, make sure border=true

[BillyJeanB]

Did you try another machine ?

ConvertToYV24(interlaced=true)
assumetff()
separatefields()
e=selecteven()
o=selectodd().crop(0,0,0,-1,true).addborders(0,1,0,0)
interleave(e,o).weave()
#ConvertToYUY2(interlaced=true)

you can shift a field vertically to align it

If you use QTMGC, make sure border=true

That's perfect, thank you. Yes I did try another machine and it didn't have the issue but the picture quality wasn't any good. This is a good solution. Thanks!!