[MPlayer-users] Re: [-] Best de-interlace filter ( NOVIRUS )

[D Richard Felker III]

On Wed, Oct 06, 2004 at 08:21:19PM +0200, Matthias Wieser wrote:
> Am Mittwoch, 6. Oktober 2004 01:39 schrieb D Richard Felker III:
> > On Tue, Oct 05, 2004 at 09:13:32PM +0200, Matthias Wieser wrote:
> > > Am Dienstag, 5. Oktober 2004 14:10 schrieb Samson Lee:
> > > > What's the best quality de-interlace filter in mplayer? Doesn't
> > > > matter
> > >
> > > Mplayer does not have high quality deinterlace filters.
> > > Maybe kerndeint is not to bad.
> >
> > i would go so far as to say there's no such thing as a high quality
> > deinterlacer. interlacing sucks, and deinterlacing sucks just as
> > much...
> 
> Dscaler and TV-Time do have some high quality deinterlacers.

i wouldn't call them high quality. your eyes just compensate because
of the high refresh rate (50/60 fps). but if you encode the output of
these it'll take insane bitrate because of the high frequency flicker
your eyes cover up. so from my standpoint it's very low quality.

> pp=md lacks a good smothing algorithm

then apply a blur filter afterwards. anyway this isn't it's most
serious fault. the main problem with md is that it destroys all local
extrema in the picture. otherwise it's by far the best deinterlacer.

> pp=kerndeint is to noise sensitive

yeah imo it's very bad.

> pp=lb blurs the image and does deinterlace everywhere

lb blurs two consecutive fields together so you don't lose either of
them entirely.

> pp=ci does deinterlace everywhere

li and ci just throw away a field. they're essentially the same as
doing: -vf field=0,scale=W:H with -sws 1 or -sws 2, respectively, i.e.
incredibly stupid. you'd be better off just encoding with -vf field=0
and saving the aspect in your output file.

rich