DESCRIPTION OF THE PROBLEM :
JBIG2 is a format for black and white images that produces files "3-5 times smaller" than Group 4 FAX.  JBIG2 is particularly useful for businesses with large volumes of scanned paper, as the space savings is multiplied by millions of pages, for storage online and archival and network transmission.  It has been adopted by  customer  in the version of PDF that is supported in Acrobat 5.

It was great to see JPEG2000 support in the JAI Image I/O   Tools 1.0 beta, and it would be nice if its, in a sense, companion for black and white images were provided too.

See this web page for more information:
http://www.jpeg.org/jbigpt2.html


(Review ID: 179693) 
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xpdf has a C++ implementation of a decompressor.  It's
GPL'ed and also licenseable commercially.

go, do it

This is much needed, decoding would be nice to have

Google has open sourced their JBIG2 encoder (written by Adam Langley): http://www.imperialviolet.org/jbig2.html

please add this!!

This is becoming increasingly important.  Java is a great platform for imaging, but JAI is starting to show it's age by not keeping up with standards.

Yes, please add this!!

See http://www.jpedal.org/jbig.php for a 100% pure Java JBIG2 image decoder.  It is available under a BSD license, and can also be used as JAI Image I/O plug-in.

JPedal is ooooh sooooo slooooow, and reads only 1 of the 27 test images to be found at jbig2dec's Sourceforge site. JPedal takes 25 seconds to load a single 9600x6000 image.
And what about patents? JPedal having a BSD license doesn't solve that, because many features of JBIG2 itself are patented. Will the inclusion of a JBIG2 decoder in JAI allow anyone to use it?

This would be extremely helpful -- Our clients are starting to use this format for scanning, and our built-in image previewer can't handle it (yet.)

JBIG2 support is needed in Java. Please include this.

I have almost finished my personal JBIG2 reader (and a generics-only compressor). It's a very fast reader (< 1 sec where JPedal needs 30 sec) and reads all but a few of  27 test images to be found at jbig2dec's Sourceforge site. It is a private fun project (though I have been a professional Java developper in my younger days), but how would I go about licensing etc. to make it public?

JBIG2 decode/encode is a much needed. Please add it..

To the commenter from 07-OCT-2009: I would be happy to help you find hosting and choose a license for your JBIG2 decoder.  Please feel free to contact me if you're interested.