Hi, I made a quick test with a 10000 by 10000 pixel image. Compression speed is a little bit slow but acceptable and the result looks visually normal. OpenJPEG driver creates automatically a tiled image which in not necessary with JPEG2000 because the arbitrary access can be obtained with precincts but it is quite a lot a matter of taste. There is also just one quality layer in the compressed image but is seems to be mainly Kakadu SDK which can utilise quality layers well. So GDAL seems to be able to create good JPEG2000 images with a Open JPEG driver. Unfortunately they are unusable with OpenJUMP because ot this (taken from http://gdal.org/frmt_jp2openjpeg.html) "In creation, the driver doesn't support writing GeoJP2 nor GMLJP2." Gdal writes georeferencing info into external xml file but OpenJUMP with ECW JPEG 2000 driver cannot read it and therefore, sadly, it does not show the image.
I start to think that gdal plugin for OpenJUMP would be useful in addition to native support for png, jpeg and tiff. Another option could be to find a very very simple utility that creates a minimal WMS service on a local computer and which could use wide variety of image formats as input. OpenJUMP has a good WMS support and that way it could consume all the image formats supported by the local WMS. I am myself using local Mapserver and OpenJUMP that way but I wouln't call it very very easy. -Jukka Rahkonen- ________________________________________ Lähettäjä: edgar.sol...@web.de [edgar.sol...@web.de] Lähetetty: 8. lokakuuta 2011 20:42 Vastaanottaja: OpenJump develop and use Aihe: Re: [JPP-Devel] Fwd: jpeg2000 just checked the build info for 1600 says jp2openjpeg is build in http://www.gisinternals.com/sdk/PackageInfo.aspx?file=release-1600-x64-gdal-1-8-mapserver-6-0.zip there you go.. ede On 08.10.2011 19:26, Rahkonen Jukka wrote: > Yes, I was meaning gdal + openjpeg. I have gdal versions with Kakadu and ECW > JPEG 2000 drivers but I use Kakadu binaries for compressing because it is > faster that way. We have an old style Kakadu non-commercial license and it is > covers our use. But for somebody who would need a totally free license > gdal+ecw or gdal+Kakadu are not suitable and therefore Open JPEG driver > http://gdal.org/frmt_jp2openjpeg.html would be interesting to try. > > -Jukka- > ________________________________________ > Lähettäjä: edgar.sol...@web.de [edgar.sol...@web.de] > Lähetetty: 8. lokakuuta 2011 16:29 > Vastaanottaja: OpenJump develop and use > Aihe: Re: [JPP-Devel] Fwd: jpeg2000 > > On 08.10.2011 12:25, Rahkonen Jukka wrote: >> When it comes to open source and JPEG2000, perhaps Open JPEG is the one that >> begins to be good enough. GDAL has a support for that but because it is not >> included be default I have not tried it yet. > > the gdal builds here > http://www.gisinternals.com/sdk/ > have ecw sdk 3.3 support with jp2. you have to install the ecw component. > > or do you mean gdal+openjpeg? > > ..ede > > > > ------------------------------------------------------------------------------ > All of the data generated in your IT infrastructure is seriously valuable. > Why? It contains a definitive record of application performance, security > threats, fraudulent activity, and more. Splunk takes this data and makes > sense of it. IT sense. And common sense. > http://p.sf.net/sfu/splunk-d2dcopy2 > _______________________________________________ > Jump-pilot-devel mailing list > Jump-pilot-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel > > ------------------------------------------------------------------------------ > All of the data generated in your IT infrastructure is seriously valuable. > Why? It contains a definitive record of application performance, security > threats, fraudulent activity, and more. Splunk takes this data and makes > sense of it. IT sense. And common sense. > http://p.sf.net/sfu/splunk-d2dcopy2 > _______________________________________________ > Jump-pilot-devel mailing list > Jump-pilot-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel ------------------------------------------------------------------------------ All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2dcopy2 _______________________________________________ Jump-pilot-devel mailing list Jump-pilot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel ------------------------------------------------------------------------------ All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2dcopy2 _______________________________________________ Jump-pilot-devel mailing list Jump-pilot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel
