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

[D Richard Felker III]

On Mon, Oct 11, 2004 at 09:37:02PM +0200, Matthias Wieser wrote:
> Am Montag, 11. Oktober 2004 05:21 schrieb D Richard Felker III:
> > On Sun, Oct 10, 2004 at 09:32:41PM +0200, Matthias Wieser wrote:
> > > Am Sonntag, 10. Oktober 2004 02:29 schrieb D Richard Felker III:
> > > > On Wed, Oct 06, 2004 at 08:21:19PM +0200, Matthias Wieser wrote:
> > > > >
> > > > > 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).
> > >
> > > You can configure TVtime and Dscaler to give 25/30 fps.
> >
> > that makes the quality much lower and eliminates the purpose of these
> > programs.
> 
> I often use 25 fps and the quality is very good. At least better than 
> mplayer + pp=fd or pp=lb

which deinterlacer?

> > > > anyway this isn't it's most
> > > > serious fault. the main problem with md is that it destroys all
> > > > local extrema in the picture.
> > >
> > > That's true - at least for extrema only one pixel high. But I have
> > > never seen this effect. So I would say it's a minor problem. The most
> > > visible problem is the staircase effect on edges.
> >
> > essentially all extrema are only one pixel high.
> 
> Extrema like highlights often extent over more than one pixel. Then the 
> difference between the actual pixel value and the one of the brighter 
> neighbour is not that large.

it's still true that removing all strict local extrema will make the
picture look "flat", and cause the "stairstep" effect with thin lines.

rich