DECA-157: Exported PDF sometimes produces inverted images for none, some, or all pages

Description

Attachments

Comments

• James Yoon commented 2010-07-22T16:50:43.985-0400

  inverted images = colour inverted

• Colin Clark commented 2010-07-22T18:11:53.457-0400

  bug parade decapod 0.4

• Jonathan Hung commented 2010-07-23T10:23:25.563-0400

  decapod-0003.jpg consistently produces a colour inverted image using Ocropus 0.4.4 and genpdf rev 38.

• Jonathan Hung commented 2010-07-23T10:45:46.564-0400

  Using the images located here: http://source.fluidproject.org/svn/design/decapod/Resources/Images/Books/D-Day/colour/

  The 4th image "04.jpg" is inverted.

  Also the 13th page is omitted (see issue DECA-58)

• Jonathan Hung commented 2011-10-07T11:26:09.569-0400

  This problem still persists using Hasan's genpdf script checked out on Oct 6, 2011.

  Tested using decapod-0003.jpg and D-Day04.jpg.

• Jonathan Hung commented 2011-10-07T11:27:56.668-0400

  The higher level issue is that genpdf, for Type 1 PDF, should generate a faithful version of the images in PDF form.

  Therefore converting to binary, greyscale, or colour should all be user-specified.

• Jonathan Hung commented 2011-11-11T11:02:24.465-0500

  Converting the file to PNG then running genpdf inverts the colour.

  But, converting to TIFF, then running genpdf DOESN'T invert.

  So a work-around would be to convert to TIFF first (use the attached TIFF file as an example).

  The source of the bug, however, is in Ocropus. Tested with genpdf changeset 79:c7ade205dec2

• Justin Obara commented 2011-11-14T13:11:57.500-0500

  Added tiff conversion to the export workflow. tiff images are now sent to genpdf. This is currently in my bitbucket repo https://bitbucket.org/jobara/decapod-server

• Justin Obara commented 2012-01-12T10:48:09.407-0500

  tiff conversion was just a workaround, the issue is now picked up in DECA-211