according to the below testing i would suggest we prioritize as follows when 
offering readers

GDAL OpenJPEG JP2K Image Reader, version 1.1, OpenJUMP
GDAL ECW JP2K Image Reader, version1.1, GeoSolutions/OpenJUMP
ImageIO JPEG 2000 Image Reader, version 1.1, Sun Microsystems, Inc.

..ede

some current tests w/ OJ r6458
Java Version:   OpenJDK 64-Bit Server VM 1.8.0_242 (amd64)
OS:     Windows 7 (6.1)
Maximum memory: 1,021,837,311 bytes (974.5 MiB)
Total Memory:   541,589,504 bytes (516.5 MiB)
Committed Memory:       266,586,368 bytes (254.2 MiB)
using
https://sourceforge.net/projects/jump-pilot/files/OpenJUMP_plugins/Drivers/GDAL-win-x86x64-3.1.2stable-20200912.zip


GDAL ECW JP2K Image Reader, version1.1, GeoSolutions/OpenJUMP

44-2013-0303-6702-LA93-0M50-E100.jp2
44-2013-0304-6702-LA93-0M50-E100.jp2
loading fine side by side in ca. 4s

974-2013-0310-7670-U40S-0M50-E080.jp2
974-2013-0310-7670-U40S-0M50-E080.tfw
takes a while, first draw blocks OJ for 10s or so, the envelope is bigger than 
the shown picture

test.jp2
loading fine


ImageIO JPEG 2000 Image Reader, version 1.1, Sun Microsystems, Inc.

44-2013-0303-6702-LA93-0M50-E100.jp2
44-2013-0304-6702-LA93-0M50-E100.jp2
loading ok, but wrong resolution

974-2013-0310-7670-U40S-0M50-E080.jp2
974-2013-0310-7670-U40S-0M50-E080.tfw
heap space error

test.jp2
loading fine


GDAL OpenJPEG JP2K Image Reader, version 1.1, OpenJUMP

44-2013-0303-6702-LA93-0M50-E100.jp2
44-2013-0304-6702-LA93-0M50-E100.jp2
loading fast

974-2013-0310-7670-U40S-0M50-E080.jp2
974-2013-0310-7670-U40S-0M50-E080.tfw
loading takes 22s, the envelope is bigger than the shown picture as above

test.jp2
loading fine


we also have a Jasper based reader, 
GDAL Jasper JP2K Image Reader, version 1.1, GeoSolutions/OpenJUMP 
com.vividsolutions.jump.workbench.imagery.imageio.JP2GDALJasperImageReaderSpi
but i don't wanna search for the needed libraries rite now.


---

** [bugs:#430] JP2 reader does not read all jp2 files**

**Status:** open
**Milestone:** 
**Created:** Sat Oct 01, 2016 09:56 AM UTC by michael michaud
**Last Updated:** Fri Aug 28, 2020 08:35 PM UTC
**Owner:** nobody


Orthophotographies produced by IGN are not read correctly (see maling list on 
2016-10-01).
One is read with a very bad resolution, anotherone freeze the application and 
does not load. 


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