Thorsten Froehlich nous apporta ses lumieres en ce 2004-02-19 06:43:
> In article <40348604@news.povray.org> , Warp <war### [at] tagpovrayorg>  wrote:
> 
> 
>>  JPEG2000 is the next version of JPEG (and certainly better), even though
>>I don't know if you can call it a "different format from JPEG"...
> 
> 
> It is really much different.  the formats only really have the name in
> common.
> 
> 
>>  Does anyone have any idea why JPEG2000 has not widespread even though
>>it's so much better than JPEG? I have always wondered this and found it
>>a big pitty.
> 
> 
> The compression algorithm is far more complex.  And I am not even sure there
> is a license free way to use it.  Either way, there is no good, portable
> library to read/write it yet.  The IJG JPEG library is kind of a "standard"
> for JPEG on the other hand.
> 
>     Thorsten
> 
> ____________________________________________________
> Thorsten Froehlich, Duisburg, Germany
> e-mail: tho### [at] trfde
> 
> Visit POV-Ray on the web: http://mac.povray.org
Looking back at old posts.
With the free jpeg2000 you can save only small images (640*480 or less). For anything
larger, you 
need to pay a licencing fee.

Alain

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