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Re: Writing JPEG2000 file [message #45535 is a reply to message #45402] Mon, 12 September 2005 10:52 Go to previous message
David Alexander is currently offline  David Alexander
Messages: 26
Registered: August 2005
Junior Member
Chintan,

The default when writing JPEG2000 is lossy compression. To get lossless
compression, you need to set the REVERSIBLE property to true. The best
way is probably to set it when you create your JPEG2000 object.
Something like this:

oJP2=OBJ_NEW('IDLffJPEG2000',filename,/WRITE,/REVERSIBLE)

adding, of course, any other properties you additionally want to set.

David
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