[MPlayer-users] Comparison of different software scaler types

[Matthias Wieser]

Am Mittwoch, 15. Oktober 2003 02:05 schrieb D Richard Felker III:
> > - sws 0    produces acceptable results
> > - sws 1    produces blurred images

> At
> first glance it appears to be a bug that 1 blurs the image while 0
> doesn't (they're both bilinear), but in fact 0 is a hacked/optimized
> version that only does correct bilinear scaling for upscaling.

Maybe -sws 1 really has a bug. I compared Mplayer's bilinear and bicubic 
scaling with Gimp. Bicubic looks very similar, but -sws 1 looks really 
flat compared to gimp's bilinear filter.

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)


Matthias