On Sun, Oct 03, 2010 at 01:52:28PM +0530, Mukund Sivaraman wrote:
> Hi all
>
> In reply to Gregory Maxwell:
> >> It's well known around the Internet that to achieve compatibility you
> >> should be conservative in what you send and liberal in what you
> >> accept. Applied to JPEG: Use only Huffman
Björn Persson wrote:
> Tom Lane wrote:
>> I believe that they'd be best advised to say "no", because at this point
>> one of JPEG's principal attractions is near-universal compatibility.
>> Throwing A/C into the mix will throw that away, for what really is a
>> very marginal gain in compression eff
Hi all
In reply to Gregory Maxwell:
>> It's well known around the Internet that to achieve compatibility you
>> should be conservative in what you send and liberal in what you
>> accept. Applied to JPEG: Use only Huffman coding when encoding ?
>> except maybe if you know that all recipients can ha
Björn Persson wrote:
> It's well known around the Internet that to achieve compatibility you
> should be conservative in what you send and liberal in what you accept.
> Applied to JPEG: Use only Huffman coding when encoding – except maybe if
> you know that all recipients can handle arithmetic codi
On Sat, Oct 2, 2010 at 1:34 PM, Paul F. Johnson
wrote:
> Hi,
>
>> "You shall not create images with arithmetic coding" is like saying "You
>> shall not create images of the flying sphagetti monster." It's not up to
>> Fedora to make this choice for me.
>
> It is though - you have chosen to use Fed
Tom Lane wrote:
> I believe that they'd be best advised to say "no", because at this point
> one of JPEG's principal attractions is near-universal compatibility.
> Throwing A/C into the mix will throw that away, for what really is a
> very marginal gain in compression efficiency.
It's well known a
Kevin Fenzi writes:
> On Sat, 2 Oct 2010 22:53:53 +0530
> Mukund Sivaraman wrote:
>> Arithmetic coding in Fedora libjpeg (bug #639531)
> My thoughts:
> - We should not be making this change in stable releases even if
> otherwise like the idea. It could well cause iss
Peter Lemenkov wrote:
> Just for the record, AFAIK there are only two countries which allows
> software patents - USA and South Korea.
That's not the whole story. The situation is quite weird in countries that
have signed the European Patent Convention. The convention and the national
laws all s
On Sat, 2 Oct 2010 22:53:53 +0530
Mukund Sivaraman wrote:
> Arithmetic coding in Fedora libjpeg (bug #639531)
...snip long thing...
My thoughts:
- We should not be making this change in stable releases even if
otherwise like the idea. It could well cause issues and problems with
Hi,
> > Remember, Fedora is not just for use in your country - there are piles
> > of countries it's used in, each with their own insane patent
> > regulations. The fedora stance is that if it offends, it's out.
>
> Just for the record, AFAIK there are only two countries which allows
> software p
2010/10/2 Paul F. Johnson :
> Remember, Fedora is not just for use in your country - there are piles
> of countries it's used in, each with their own insane patent
> regulations. The fedora stance is that if it offends, it's out.
Just for the record, AFAIK there are only two countries which allow
Hi,
> "You shall not create images with arithmetic coding" is like saying "You
> shall not create images of the flying sphagetti monster." It's not up to
> Fedora to make this choice for me.
It is though - you have chosen to use Fedora therefore have to live with
the decisions the Fedora legal pe
Arithmetic coding in Fedora libjpeg (bug #639531)
I want libjpeg packages in future Fedora distributions to support
reading arithmetic coded JPEG files.
Huffman coding and arithmetic are two different bit coding methods that
are available in the JPEG standard. Huffman is simpler to implement
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