[MEncoder-users] [Script] PSNR between two video files

Matthias Wieser mwieser at gmx.de
Thu Aug 25 16:58:31 CEST 2005


Am Donnerstag, 25. August 2005 16:55 schrieb Rich Felker:
> On Thu, Aug 25, 2005 at 02:38:43PM +0200, Guillaume POIRIER wrote:
> > Hi,
> >
> > On 8/25/05, Matthias Wieser <mwieser at gmx.de> wrote:
> > > Am Donnerstag, 25. August 2005 14:12 schrieb Guillaume POIRIER:
> > > > A quick glance at the code shows that you use the tool "pnmpsnr"
> > > > to do the frame-by-frame... so no crown for you today! ;o)
> > >
> > > I hope that at least I have done the calculation of the global PSNR
> > > the right way.
> >
> > You should not worry too much about that: AFAIK, there's no "unique"
> > way to compute PSNR: at least lavc and XviD compute it differently.
>
> Yes; however, some ways are blatently incorrect..

The way I did it is correct, isn't it?

Matthias




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