ICEpdf
  1. ICEpdf
  2. PDF-304

DctDecode (jpeg) decode issue

          Details

          • Type: Bug Bug
          • Status: Closed
          • Priority: Major Major
          • Resolution: Fixed
          • Affects Version/s: 4.2.1
          • Fix Version/s: 4.2.2
          • Component/s: Core/Parsing
          • Labels:
            None
          • Environment:
            any

            Description

            Client has sent in a PDF document where the jpeg image on the page has inverted colours. Interesting enough the algorithm that converts Y to gray is using a subtractive colour model. When switched to additive the image shows up correctly.

            I'll have to do some reading/research on this as the method has zero comments.

              Activity

              Repository Revision Date User Message
              ICEsoft Public SVN Repository #24876 Thu Jun 23 07:32:04 MDT 2011 patrick.corless PDF-304 changed the Y to gray raster conversion to be additive rather then subtractive.
              Files Changed
              Commit graph MODIFY /icepdf/trunk/icepdf/core/src/org/icepdf/core/pobjects/Stream.java

                People

                • Assignee:
                  Patrick Corless
                  Reporter:
                  Patrick Corless
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                  Dates

                  • Created:
                    Updated:
                    Resolved: