Filter to remove chroma "line noise"

[FlimsyFeet]

This is a capture from a laserdisc player, I don't know exactly what to call it, but the pic below shows what I mean - horizontal lines where the skin tone is slightly different:

http://img127.exs.cx/img127/2303/chroma.png

What is this, what causes it and is there any filter that can reduce it?

[rfmmars]

It's a color phsse problem most likey from the TV station's VTR. Correction or what I would mask the fualt is to widen the demodulation a few degrees.

I know of a filter for the exact problem but I would use a set of filters from the below source.

http://www.artistcollaboration.com/users/aworkinprogress/Software.htm

richard
photorecall.net

[Didée]

Before making a science out of it, try the quick & simple ways:

MergeChroma( blur(0,X) ) # X = [0.5,1.0]

- or -

MergeChroma( blur(0,X).sharpen(0,X*0.66) )

- or -

c = last
m = c.AnyChromaCombMask()
MaskedMerge(c,c.blur(0,1),m,Y=2,U=3,V=3)

[FlimsyFeet]

I noticed that some caps I did earlier didn't suffer from this effect. It turned out it was something to do with the sharpness setting in the btwincap drivers, if "auto" is enabled then I don't get these lines any more.

Thanks for the suggestions anyway!