ICEpdf
  1. ICEpdf
  2. PDF-1196

Image decode banding issue

          Details

          • Type: Bug Bug
          • Status: Closed
          • Priority: Major Major
          • Resolution: Fixed
          • Affects Version/s: 6.2.5
          • Fix Version/s: 6.3
          • Component/s: Core/Parsing
          • Labels:
            None
          • Environment:
            any

            Description

            The file in question has several image but there is one that exhibits a banding decode issue. Basically the bit stream is decoded but there is an EOL or lack there of that throws the bit ordering off.

            I've spend some time looking at the issue but haven't had much luck isolating the problem.

              Activity

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              Patrick Corless created issue -
              Patrick Corless made changes -
              Field Original Value New Value
              Fix Version/s 6.3 [ 13093 ]
              Judy Guglielmin made changes -
              Support Case References https://icesoft.my.salesforce.com/5000g00001mewY0 Support Case 14201:- https://icesoft.my.salesforce.com/5000g00001mewY0
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              Patrick Corless added a comment -

              This turns out to be related to the malformed decodeParams attached to the PNG/flate decode. This is very similar to what we saw with a ccittfax decode issue with PDF-1030. I've done some more checks to make sure out code occurrences of decodeParam as using the new method that handles the indirect reference lookup.

              Show
              Patrick Corless added a comment - This turns out to be related to the malformed decodeParams attached to the PNG/flate decode. This is very similar to what we saw with a ccittfax decode issue with PDF-1030 . I've done some more checks to make sure out code occurrences of decodeParam as using the new method that handles the indirect reference lookup.
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              Patrick Corless added a comment -

              Marking as fixed.

              Show
              Patrick Corless added a comment - Marking as fixed.
              Patrick Corless made changes -
              Status Open [ 1 ] Resolved [ 5 ]
              Resolution Fixed [ 1 ]
              Repository Revision Date User Message
              ICEsoft Public SVN Repository #52076 Mon Nov 13 12:30:50 MST 2017 patrick.corless PDF-1196 cleaned up our parsing of decodeParams to insure we get the
              correct predictor value when decoding PNGs.
              Files Changed
              Commit graph MODIFY /icepdf/trunk/icepdf/core/core-awt/src/main/java/org/icepdf/core/pobjects/filters/FlateDecode.java
              Commit graph MODIFY /icepdf/trunk/icepdf/core/core-awt/src/main/java/org/icepdf/core/pobjects/graphics/images/ImageParams.java
              Commit graph MODIFY /icepdf/trunk/icepdf/core/core-awt/src/main/java/org/icepdf/core/pobjects/filters/PredictorDecode.java
              Repository Revision Date User Message
              ICEsoft Public SVN Repository #52152 Wed Dec 13 10:53:13 MST 2017 patrick.corless PDF-1196 cleaned up our parsing of decodeParams to insure we get the
              correct predictor value when decoding PNGs.
              Files Changed
              Commit graph MODIFY /icepdf/branches/icepdf-6.2.0/icepdf/core/src/org/icepdf/core/pobjects/filters/PredictorDecode.java
              Patrick Corless made changes -
              Status Resolved [ 5 ] Closed [ 6 ]

                People

                • Assignee:
                  Patrick Corless
                  Reporter:
                  Patrick Corless
                • Votes:
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                  Dates

                  • Created:
                    Updated:
                    Resolved: