ICEpdf
  1. ICEpdf
  2. PDF-1232

Image with separation colour space is rendering transparent

          Details

          • Type: Bug Bug
          • Status: Resolved
          • Priority: Major Major
          • Resolution: Fixed
          • Affects Version/s: 6.2.5, 6.3
          • Fix Version/s: 6.3.1
          • Component/s: Core/Parsing
          • Labels:
            None
          • Environment:
            any

            Description

            The file in question has in image that is encoded using a Separation colour space. Separation is an interesting colour space as it has no support for alpha perhaps a throwback to its printing press roots.

            The colour space takes a named colour as well as a tint value which is used to compose an rgb colour. We've had some trouble doing this correctly in the past PDF-696, PDF-694 and PDF-337. This test file has helped shed some light on the problem.

              Activity

              Repository Revision Date User Message
              ICEsoft Public SVN Repository #52309 Wed Feb 14 09:16:40 MST 2018 patrick.corless PDF-1232 added further synchronization to avoid some caching issue
              that can occur if two images ues the same Separation instance.
              Files Changed
              Commit graph MODIFY /icepdf/trunk/icepdf/core/core-awt/src/main/java/org/icepdf/core/pobjects/graphics/Separation.java
              Commit graph MODIFY /icepdf/trunk/icepdf/core/core-awt/src/main/java/org/icepdf/core/pobjects/graphics/PColorSpace.java
              Repository Revision Date User Message
              ICEsoft Public SVN Repository #52308 Wed Feb 14 08:46:22 MST 2018 patrick.corless PDF-1232 added a basic blending calculation against the calculated
              tint values and a white background.
              Files Changed
              Commit graph MODIFY /icepdf/trunk/icepdf/core/core-awt/src/main/java/org/icepdf/core/pobjects/graphics/images/ImageUtility.java
              Commit graph MODIFY /icepdf/trunk/icepdf/core/core-awt/src/main/java/org/icepdf/core/pobjects/graphics/Separation.java

                People

                • Assignee:
                  Patrick Corless
                  Reporter:
                  Patrick Corless
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                  Dates

                  • Created:
                    Updated:
                    Resolved: