Hi all,

I'm currently working on a project optimising code for JPEG-LS and 
JPEG-lossless data compression. For reasons of fast verification I'm looking 
for a viewer or comparable software (mainly free- or shareware) to view the 
compressed files (file extension *.ljpg and *.jls).
Unfortunately I don't know any viewers supporting this format. Any help is 
highly appreciated!

Regards Edwin 

Edwin Mohaupt wrote:

> I'm currently working on a project optimising code for JPEG-LS and 
> JPEG-lossless data compression. For reasons of fast verification I'm looking 
> for a viewer or comparable software (mainly free- or shareware) to view the 
> compressed files (file extension *.ljpg and *.jls).
> Unfortunately I don't know any viewers supporting this format. Any help is 
> highly appreciated!

As for JPEG-LS, http://www.hpl.hp.com/loco/ has a software for download. 
It's not a viewer, but a command line image format converter from and to 
ppm and pgm. They now seem to ask you for an email contact, though I 
seem to remember having gotten that software without any contact 
information, but I don't remember whether from that side or another. The 
hp reference implementation seems to come for free otherwise.

JPEG-1-lossless is a completely unrelated standard (though from the same 
comittee). I'm not sure whether the IJG implementation covers it, though 
AFAIK Pegasus at www.jpg.com offers a free trial version of PICTOOLS 
which should include it.

So long,
	Thomas

> Unfortunately I don't know any viewers supporting this format. Any help is
> highly appreciated!
>

for  JPEG-1-lossless there is software available on Digital Database for
Screening Mammogrphy (DDSM) site (
http://marathon.csee.usf.edu/Mammography/Database.html ). It is really old
and buggy, but it is the only software I know, which can deal with that
format. And it's available with complete sources, of course.

Best regards

Piotr Boni�ski