JasPer JPEG2000 library 1.900.1 is available for OS/2 and eComStation (2012-06-18)
"A JPEG2000 codec compiled for OS/2.
"
Link: http://hobbes.nmsu.edu/h-search.php?key=jasper-1.900.1_os2.zip
It requires kLIBC / GCC Runtime Library.
By Mentore Siesto