Hi,

> As an interesting side effect, OpenJUMP supports now also JPEG2000. That's 
> because the more fresh ER Mapper dlls include both ECW and JPEG2000 codecs. 
> There is just a minory programming task to do because now it is not possible 
> to select an image file with .jp2 extension. I renemed a few of my .jp2 files 
> into .ecw and that way I could select the files and OpenJUMP shows them. 
> Georeferencing is right and performance is acceptable though not as good as 
> with ECW. That is normal behaviour with ECW-JPEG2000 driver at least if 
> JPEG2000 images are optimized for Kakaku driver as in my case.
Excellent !

Michaël
>
> I am not totally sure but I believe that the ER Mapper ECW-JPEG2000 driver 
> can open these JPEG2000 variants:
> .jp2, .j2k, .j2c, .jpc, .jpx and .jpf
> OpenJUMP file selector should be made to allow all those extensions.
>
> For me this is pretty good news and not only because I happen to have 8 
> terabytes of JPEG2000 imagery on disks. It looks like we can include these 
> old 3.x series ECW-JPEG2000 drivers in OpenJUMP downloads and they work well 
> with both ECW and JPEG2000. ERDAS has not yet invented anything backwards 
> incompatible for ECW (except the license) so version 3.x should be usable for 
> some time in the future too. Situation with JPEG2000 is also a bit unhappy 
> because all the best JPEG2000 codecs are proprietary but it is not as nasty 
> as with ECW because the JPEG2000 file format itself is not patented. There 
> exist free libraries and utilities also for writing JPEG2000. At least 
> GeoJasper http://www.dimin.net/software/geojasper/ and OpenJPEG are such. 
> GDAL has JPEG2000 drivers for both of them.
>
>
>
> -Jukka Rahkonen-
>
>
>
>
>
>
>> -----Alkuperäinen viesti-----
>> Lähettäjä: edgar.sol...@web.de [mailto:edgar.sol...@web.de]
>> Lähetetty: 19. syyskuuta 2011 14:33
>> Vastaanottaja: OpenJump develop and use;
>> openjump-us...@googlegroups.com
>> Aihe: [JPP-Devel] new ecw test round
>>
>> dear users&  devs,
>>
>> the latest snapshot
>>
>> http://jump-pilot.sourceforge.net/download/nightlybuild/snapsh
> ot-2011-09-19/openjump-core-1.4.3-SNAPSHOT-bin.zip
>> brings with updated native libs to load ecw files on windows
>> platform. these are the same libraries used in gvsig, which
>> are supposed to be faster and support compression. they are
>> also available for linux x86, which is about to be included later.
>>
>> i tested it with
>> jdk 1.5.22/1.6.27/1.7.0 on windows xp,vista,7 (all x86 and x64)
>> and it seems to work.
>>
>> Conditions:
>> there are conditions to be met so ecw support works.
>> 1. they work only on x86 java runtimes (on both windows x86/x64).
>> 2. oj_windows.bat has to be used to start oj (will take care
>> of the exe later)
>>
>> for the curious
>> Changes:
>> updated to jecw 0.0.7 from gvsig 1.11
>> except for compatibility reasons
>>   xp,xp64 jecw 0.0.7 from gvsig 1.09
>>   vista64 keeps current ermapper driver
>> oj_windows.bat added logic to setup library and classpath accordingly
>>
>>
>> thanks, ede
>>
>> --------------------------------------------------------------
>> ----------------
>> BlackBerry® DevCon Americas, Oct. 18-20, San Francisco, CA
>> Learn about the latest advances in developing for the
>> BlackBerry® mobile platform with sessions, labs&  more.
>> See new tools and technologies. Register for BlackBerry®
>> DevCon today!
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>> _______________________________________________
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>> Jump-pilot-devel@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel
>>
> ------------------------------------------------------------------------------
> BlackBerry® DevCon Americas, Oct. 18-20, San Francisco, CA
> Learn about the latest advances in developing for the
> BlackBerry® mobile platform with sessions, labs&  more.
> See new tools and technologies. Register for BlackBerry® DevCon today!
> http://p.sf.net/sfu/rim-devcon-copy1
> _______________________________________________
> Jump-pilot-devel mailing list
> Jump-pilot-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel
>
>


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