[Octave-bug-tracker] [bug #51558] True color uint8 images are not printed correctly

[Pantxo Diribarne]

URL:
  <http://savannah.gnu.org/bugs/?51558>

                 Summary: True color uint8 images are not printed correctly
                 Project: GNU Octave
            Submitted by: pantxo
            Submitted on: Mon 24 Jul 2017 02:52:56 PM UTC
                Category: Plotting with OpenGL
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Incorrect Result
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Any

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Details:

I used the following syntax to show and print the image:

+verbatim-
imshow (uint8 (floor (255*rand (200,200,3))))
print /tmp/foo.pdf


The image appears correctly on-screen but whatever the chosen output format
(here pdf) the image appears completely black in the printout.

I'll attach a patch when I have a bug number.





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