ICEpdf
  1. ICEpdf
  2. PDF-1228

Incorrect decode of device RGB with 4 bits per component.

          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

            A client has submitted a PDF that that has numerous inline images that hava a common deviceRGB colour space but an oncommon 4 bit's per component data packing. The images is rendered slightly yellow instead of white.

              Activity

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              Patrick Corless created issue -
              Patrick Corless made changes -
              Field Original Value New Value
              Fix Version/s 6.3 [ 13093 ]
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              Patrick Corless added a comment -

              The 4-bit packing makes the image decode fall back on our RawDecoder which assumes all rgb images types have 8 bits per component. I've update the method to handle the other bit per components alternatively. The image now renders correctly.

              Show
              Patrick Corless added a comment - The 4-bit packing makes the image decode fall back on our RawDecoder which assumes all rgb images types have 8 bits per component. I've update the method to handle the other bit per components alternatively. The image now renders correctly.
              Hide
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              Patrick Corless added a comment -

              Marking as fixed.

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              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 #52228 Mon Jan 22 12:24:04 MST 2018 patrick.corless PDF-1228 added catch for 8 bpc which pushes other formats like 4 bpc down the the regular decode.
              Files Changed
              Commit graph MODIFY /icepdf/trunk/icepdf/core/core-awt/src/main/java/org/icepdf/core/pobjects/graphics/images/RawDecoder.java
              Patrick Corless made changes -
              Status Resolved [ 5 ] Closed [ 6 ]

                People

                • Assignee:
                  Patrick Corless
                  Reporter:
                  Patrick Corless
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                  Dates

                  • Created:
                    Updated:
                    Resolved: