[theora] NHW codec - improvement of precision (Daniel Hendrycks)

[Raphael Canut]

Hi again,

If it could be of interest, I have added on my demo page the 3 test images
compressed with a new version that I have just made... I have improved
precision on the UV chroma components (and corrected a very little bug).

Now, it is directly possible to compare the results of the first version
with the last version, and see the precision improvements... But again it
is very slight (even with some screenshots and zooms...).

If you would have any suggestion about these improvements, or if there
would be some parts where my codec would really need to be improved, do not
hesitate to let me know, would be really appreciated.

Many thanks,
Raphael

2012/5/25 Daniel Hendrycks <kondo8 at hotmail.com>

> On Fri, 25 May 2012 14:00:01 -0500, <theora-request at xiph.org> wrote:
> > Message: 1
> > Date: Fri, 25 May 2012 19:26:18 +0200
> > From: Raphael Canut <nhwcodec at gmail.com>
> > Subject: [theora] NHW codec - improvement of precision
> > To: theora at xiph.org
> > Message-ID:
> >       <CAKE58qHqSsrgJP4OX++eetMmT2WTv=
> 8ZvfXoou7bWjOnbUSrAQ at mail.gmail.com>
> > Content-Type: text/plain; charset="iso-8859-1"
> >
> > Hello,
> >
> > Just contact you quickly as I have improved precision of my codec (a
> > little) and I have updated my demo page: http://nhwcodec.blogspot.com/
> > .This
> > version seems a little better.
> > I will also certainly have to do an image comparison with other codecs,
> > Google WebP for example, which has a very impressive precision, and to
> > show
> > that my codec would have less precision but maybe a little more neatness.
> >
> > Any comment would be really appreciated.
> >
> > Many thanks,
> > Raphael
> Could you post screenshots of the improvements?
>
> --
>
> Daniel Hendrycks
>
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