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[MPlayer-users] Re: [-] Re: Crop before deinterlacing OK?

To: "MPlayer usage questions, feature requests, bug reports" <mplayer-users@xxxxxxxxxxxx>
Subject: [MPlayer-users] Re: [-] Re: Crop before deinterlacing OK?
From: Matthias Wieser <mwieser@xxxxxx>
Date: Tue, 26 Jul 2005 23:23:28 +0200
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Delivered-to: mplayer-users@mplayerhq.hu
In-reply-to: <20050726194711.GK319@brightrain.aerifal.cx>
References: <200507061108.18714.mwieser@gmx.de><200507262105.48982.mwieser@gmx.de><20050726194711.GK319@brightrain.aerifal.cx>
User-agent: KMail/1.8.1 
Am Dienstag, 26. Juli 2005 21:47 schrieb Rich Felker:
> On Tue, Jul 26, 2005 at 09:05:48PM +0200, Matthias Wieser wrote:
> > > and then pp=l5 will also result in worse psnr during
> > > compression,
> >
> > No, pp=l5 is nearer to the original, so psnr is higher.
>
> It's pointless to compare psnr unless you compare the final psnr AFTER
> encoding versus the original picture..

If the image prior to the encoding is already bad, the codec won't improve 
it.

> > For progressive content I just did the comparison. pp=l5 results in
> > much higher psnr between the original frames and the frames from the
> > resulting video.
>
> What tool do you use to measure psnr there?

pnmpsnr


      Matthias

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