ICEpdf
  1. ICEpdf
  2. PDF-183

Device CMYK incorrectly applied to DCTDecode image stream.

          Details

          • Type: Bug Bug
          • Status: Closed
          • Priority: Minor Minor
          • Resolution: Fixed
          • Affects Version/s: 4.0
          • Fix Version/s: 4.2
          • Component/s: Core/Parsing
          • Labels:
            None
          • Environment:
            Any

            Description

            This has bean a long standing bug with how we apply CMYK colour model to some image types. There is foot note in the 4.8.5 Masked Images section that might shed some light on the problem. The PDF in question showd the images as being very blue as as I result I suspect the colour model might be incorrectly applied.

            Here is a sample of the image dictionary that is likely responsible for the issue.

            /Intent/RelativeColorimetric
            /Subtype/Image
            /Length 64768
            /Filter/DCTDecode/
            Name/X/
            BitsPerComponent 8
            /ColorSpace/DeviceCMYK
            /Width 465
            /Height 349
            /Type/XObject
            1. PDF File
              _61SPB01_CMJN_20100505_S1001639.pdf
              405 kB
              Patrick Corless
            2. PDF File
              p4.pdf
              3.36 MB
              Patrick Corless

              Activity

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              Patrick Corless added a comment -

              From http://www.icefaces.org/JForum/posts/list/17351.page .

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              Patrick Corless added a comment - From http://www.icefaces.org/JForum/posts/list/17351.page .
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              Patrick Corless added a comment -

              I'll see I I can't tweak the dark levels a little bit more.

              Show
              Patrick Corless added a comment - I'll see I I can't tweak the dark levels a little bit more.
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              Patrick Corless added a comment -

              The cmyk levels where tweaked a bit for 4.1.2 for a client (p4.pdf). The other image in question (_61SPB01_CMJN_20100505_S1001639.pdf) had a few images that didn't look right related to the YCCK colour model which was fixed in PDF-247.

              Closing issue.

              Show
              Patrick Corless added a comment - The cmyk levels where tweaked a bit for 4.1.2 for a client (p4.pdf). The other image in question (_61SPB01_CMJN_20100505_S1001639.pdf) had a few images that didn't look right related to the YCCK colour model which was fixed in PDF-247 . Closing issue.

                People

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

                  • Created:
                    Updated:
                    Resolved: