[MPlayer-users] Is PSNR a definitive way of judging the quality of encoded files?
michaelni at gmx.at
Tue Nov 1 15:08:16 CET 2005
On Sat, Sep 24, 2005 at 10:23:23AM -0400, Jason Tackaberry wrote:
> On playback, I will pass my video through post processing filters that
> inevitably lower PSNR because they make the video further different from
> the original. (The filter chain I tend to use is -vf
> fspp,noise=8ah:5ah,eq2=1.2:1.1.) Introducing noise is a common enough
while this set of filters will almost certainly lower PSNR, its not true in
general, postprocessng with a good filter should generally increase PSNR
so while i havnt tried, -vf spp should improve PSNR unless theres some silly
systematic +1 or so error in it ...
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