[MEncoder-users] Deinterlacing produces red and green ghost effects - looks off

[Sebastian]

Sebastian schrieb:
> Hi all,
> 
> I got some interlaced PAL material here. I'm trying to deinterlace, but
> no matter which filter I use the result looks off when there's high
> motion. I'm using mplayer/mencoder CVS-050511-14:33-3.3.5-20050130.
> I've uploaded pictures of a guy in a smoking rasing his hand and then
> lowering it.
> 
> http://www-users.rwth-aachen.de/sebastian.kemper/deinterlace1.png
> 
> Here the guy raises his hand. The red ghost hands is faster then the
> guys hand.
> 
> http://www-users.rwth-aachen.de/sebastian.kemper/deinterlace2.png
> 
> Here the guy lowers his hand. But this time a green ghost hand is slower
> then the guys hand.
> 
> What's wrong? Can the filters be fixed? Or is it because the first half
> of the movie is progressive and the second is interlaced and mplayers
> decoder doesn't get it? I read something alike here:
> http://forums.3ivx.com/cgi-bin/ikonboard/topic.cgi?forum=14&topic=124
> They figured it's the "Chroma Bug" and linked a description.
> 
> Thanks
> 
> Sebastian
> 
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> 
> 
Hi :D

Nevermind! I think I've found the solution here ->
http://www.mplayerhq.hu/DOCS/HTML/en/menc-feat-telecine.html section
7.12.4.1, that is I have to crop dividable by 4 vertically. Now the
'ghosts' are gone.

Cheers

Sebastian