jpeg 2000

  • Thread starter Thread starter teddy
  • Start date Start date
T

teddy

hi, i just want to know is there any freeware which could allow me to change
my *.jpeg files to jpeg2000 format ?
thanks in advance.
teddy.
 
Jari Karjalainen said:
Well that's what Irfanview told me ;-)
Have you tried to save in JPG2000 -format?
Click to expand...

I made the test and confirm what Jari has stated, at least with
irfanview 3.85.
 
Uh, no, that's not right.
Click to expand...

Unfortunately it is correct. The LuraWave JP2 format requires registration
to save higher than 640x480. When attempting to save at a higher
resolution, a dialog box pops up requesting registration info and has a
link to the Lurawave buy / reg site:

http://www.algovision-luratech.com/shop/index.jsp

The license price for the JP2 plugin is stated as $10.30.

Also, this is found in the Plugins.txt file (dated 8/24/03) supplied with
the all-plugins.zip file download:

* 20. JPEG2000.DLL - This PlugIn allows IrfanView to read/write JPEG2000
format. JPEG2000 is high compression format and produce better results
as "old" JPG. Note: Third party PlugIn, registration required for saving.

The i-plugins.txt file (dated 10/17/03) supplied with the main program
install (v3.85) does not mention this, nor could I find it on the IrfanView
website (maybe I didn't look hard enough).
 
This is something I don't get. I thought JPEG2000 is supposed to be a
non-proprietary format; same thing for JPEG2000 part 6 (JPM files). I don't
understand why there isn't all kinds of free software out there for
decoding/encoding graphics files to these non-proprietary standards.
 
On Sun, 19 Oct 2003 21:56:57 -0500, Spoon2001 wrote:

snip...
I thought JPEG2000 is supposed to be a
non-proprietary format;
Click to expand...
....snip

As far as I can tell, the full-fledged JP2 file format is as proprietary as
it gets...LuraTech holds the patents to key aspects of the wavelet
technology used in LuraWave. It's up to them how they want to dole
out the licenses. Viewers, browser plug-ins, etc. seem to be free to
use; creating (saving) documents without severe restrictions, as in
the case of IrfanView, require payment. Some fees are minimal,
others fairly stiff.

I think some projects for free or open-source JPEG2000 are out there, but
they either have to work around the patents or have to offer a version that
doesn't have all the real or imagined benefits of the true, full-blown
LuraTech version.

That's as much as I care to get into it right now, and some of the info may
be wrong. I just don't have any use for such a file format, i.e. one that
requires additional browser plug-ins, one that isn't used much by
others, and one that costs money to use in many instances without
providing worthy advantages over other existing free formats.
 
["Antoine"; Sun, 19 Oct 2003 17:34:50 GMT]
I made the test and confirm what Jari has stated, at least with
irfanview 3.85.
Click to expand...

Then why am I able to save a 1280x1024 image to JPEG2000 format in
IrfanView?
 
["Jari Karjalainen"; Fri, 24 Oct 2003 18:17:54 GMT]
Maybe you have registered plugin (but I think that you should know it)?
http://www.kolumbus.fi/neko/if_jpg2000.gif
Click to expand...

Well, I don't recall ever having done so. If it costs money (as that
screenshot seems to indicate it does), then I definitely didn't.
Or you are just so skillful ;-)
Click to expand...

Very possible. {LOL} On my machine, I'm just able to save JPEG2000s like
any other image. To illustrate, I saved an image from the upcoming
"Matrix" film in a.b.f. There seem to be no limitations here.
 
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