ICEpdf
  1. ICEpdf
  2. PDF-43

JPEG2000 Support

          Details

          • Type: New Feature New Feature
          • Status: Closed
          • Priority: Major Major
          • Resolution: Fixed
          • Affects Version/s: 3.0
          • Fix Version/s: 4.1
          • Component/s: Core/Parsing
          • Labels:
            None
          • Environment:
            Nothing special

            Description

            Addition JPEG2000 image support to ICEpdf rendering core. It looks like there is finally a few open source libraries available for image decoding, http://jpeg2000.epfl.ch/ looks promising.

              Activity

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              Patrick Corless created issue -
              Patrick Corless made changes -
              Field Original Value New Value
              Salesforce Case []
              Fix Version/s 3.1 [ 10181 ]
              Affects Version/s 3.0 [ 10180 ]
              Patrick Corless made changes -
              Fix Version/s 3.2 [ 10212 ]
              Fix Version/s 3.1 [ 10181 ]
              Ken Fyten made changes -
              Fix Version/s 4.0 [ 10222 ]
              Fix Version/s 4.0 - Beta [ 10212 ]
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              Mark Collette added a comment -

              We should look at ImageIO (and possibly JAI ImageIO Tools) again. They've probably come a ways.

              Show
              Mark Collette added a comment - We should look at ImageIO (and possibly JAI ImageIO Tools) again. They've probably come a ways.
              Ken Fyten made changes -
              Salesforce Case []
              Fix Version/s 4.1 [ 10227 ]
              Fix Version/s 4.0 [ 10222 ]
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              Permalink
              Patrick Corless added a comment -

              test file

              Show
              Patrick Corless added a comment - test file
              Patrick Corless made changes -
              Attachment raw_brochure_v.2005.pdf [ 12171 ]
              Patrick Corless made changes -
              Assignee Patrick Corless [ patrick.corless ] Mark Collette [ mark.collette ]
              Repository Revision Date User Message
              ICEsoft Public SVN Repository #21939 Mon Jul 19 07:40:51 MDT 2010 patrick.corless PDF-43 added basic support for JPEG2000 via JAI ImageIO/JJ2000.5.1.
              Files Changed
              Commit graph MODIFY /icepdf/trunk/icepdf/core/src/org/icepdf/core/pobjects/Stream.java
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              Patrick Corless added a comment -

              I've taken a closer look at JPEG2000 support and think I've go something that will work for our first offering. It turns out that JAI support JPEG2000 by including the class files for JJ2000 5.1 in the jai_imageio.jar. When trying out different load options I had JJ2000 5.1 on the class path head of the JAI jars and I could reproduce the runtime exception that Mark was seeing. However if JJ2000 was removed from the classpath the images started showing up.

              I only have 12 JPEG2000 sample files but they all load correctly. There is an issue with images that have a CMYK colour space but this is a know issue with other image types as well. The JJ2000 image library can be sped up with the system property -Djj2000.j2k.entropy.encoder.StdEntropyCoder.nthreads=N, where N is 0 by default.

              Show
              Patrick Corless added a comment - I've taken a closer look at JPEG2000 support and think I've go something that will work for our first offering. It turns out that JAI support JPEG2000 by including the class files for JJ2000 5.1 in the jai_imageio.jar. When trying out different load options I had JJ2000 5.1 on the class path head of the JAI jars and I could reproduce the runtime exception that Mark was seeing. However if JJ2000 was removed from the classpath the images started showing up. I only have 12 JPEG2000 sample files but they all load correctly. There is an issue with images that have a CMYK colour space but this is a know issue with other image types as well. The JJ2000 image library can be sped up with the system property -Djj2000.j2k.entropy.encoder.StdEntropyCoder.nthreads=N, where N is 0 by default.
              Patrick Corless made changes -
              Assignee Mark Collette [ mark.collette ] Patrick Corless [ patrick.corless ]
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              Patrick Corless added a comment -

              I'm going to create an new bug to capture the cmyk colour issue. JAI post a warning message "[WARNING]: EOC marker not found. Codestream is corrupted." at the command line but it doesn't seem to effect the image output. I'll take a closer look at this in the future if need be.

              Checking patched Stream.java class.

              Show
              Patrick Corless added a comment - I'm going to create an new bug to capture the cmyk colour issue. JAI post a warning message " [WARNING] : EOC marker not found. Codestream is corrupted." at the command line but it doesn't seem to effect the image output. I'll take a closer look at this in the future if need be. Checking patched Stream.java class.
              Patrick Corless made changes -
              Status Open [ 1 ] Resolved [ 5 ]
              Resolution Fixed [ 1 ]
              Ken Fyten made changes -
              Status Resolved [ 5 ] Closed [ 6 ]

                People

                • Assignee:
                  Patrick Corless
                  Reporter:
                  Patrick Corless
                • Votes:
                  4 Vote for this issue
                  Watchers:
                  0 Start watching this issue

                  Dates

                  • Created:
                    Updated:
                    Resolved: