I have a quick question. For Ubuntu 12.10 and upwards, does it support JPEG2000? does it include Kakadu?
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No, the official Ubuntu 12.10 package does not include Kakadu. You will need to download one of our special JPEG2000 packages instead.
I think he's just looking for a jpeg2000-viewer.
Eye of Gnome (eog in cli), the default viewer, is able, but
it loads the entire decompressed data into memory. So opening
jpeg2000 of 10MB or more can result into a crash if you dont'
have enough memory. (Irfanview on windows has the same flaw)
HiView only decodes what you need: if you need a small view,
it only decodes the small resolution; or only a tile in it.
So same approach as IIPImage server.