ICEpdf
  1. ICEpdf
  2. PDF-679

Improve rendering quality of CCITTFax images.

          Details

          • Type: Improvement Improvement
          • Status: Closed
          • Priority: Major Major
          • Resolution: Fixed
          • Affects Version/s: 5.0.4
          • Fix Version/s: 5.1
          • Component/s: Core/Parsing
          • Labels:
            None
          • Environment:
            any
          • Salesforce Case Reference:

            Description

            In general ICEpdf does not render CCITTfax images with the same sharpness as acrobat at low zoom levels. The interpolation algorithm used by Java2d does seem to kick in until the image zoom is increased.

            We have a few clients that would like to see the rendering quality to be improved. There are a few potential ways to go about this.

            - see if a the mipmap image scaling can be improved to make the images clearer at low zoom levels.
            - re-evaluate the Floyd Stenberg algorithm .

              Activity

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              Patrick Corless added a comment -

              Marking as fixed. The following system properties can be used to improve TIFF rendering smoothness.

              -Dorg.icepdf.core.imageReference=smoothScaled
              or
              -Dorg.icepdf.core.imageReference=scaled

              Show
              Patrick Corless added a comment - Marking as fixed. The following system properties can be used to improve TIFF rendering smoothness. -Dorg.icepdf.core.imageReference=smoothScaled or -Dorg.icepdf.core.imageReference=scaled

                People

                • Assignee:
                  Patrick Corless
                  Reporter:
                  Patrick Corless
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                  Dates

                  • Created:
                    Updated:
                    Resolved: