[MPlayer-users] Comparison of different software scaler types

[Michael Niedermayer]

Hi

On Thursday 16 October 2003 14:01, Matthias Wieser wrote:
> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
>
> Am Donnerstag, 16. Oktober 2003 13:31 schrieb Michael Niedermayer:
> > On Wednesday 15 October 2003 12:05, Matthias Wieser wrote:
> > > I have made a gimp file with both versions of the png files, where
> > > you can toggle the display of the mplayer image to show the
> > > differences. -> http://home.knuut.de/MWieser_/linear.xcf.tar.gz
> > > (600kb)
> >
> > please tell us exactly what filters u used and which resolutions, and
> > mplayer/mencoder commandlines used would be helpfull too
> >
> > [...]
[...]
> Maybe worth a note: I used gimp 1.3.19 and gimp's bilinear downscale
> filter looks nearly the same to gimp's bicubic downscale filter. Even at
> upscale the difference is very small.
is there a difference at all? it seems gimp uses an area averaging scaler for 
downscaling if u select linear or cubic (gimp 1.3.9 here)
if its true, then it would explain why it looks sharper then linear 
downscaling

[...]
-- 
Michael
level[i]= get_vlc(); i+=get_vlc();		(violates patent EP0266049)
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buf[i]= qp - buf[i-1];				(violates patent #?)
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