[gs-bugs] [Bug 692235] Rendering PDF to 8bit colors shows bad colors

bugzilla-daemon at ghostscript.com bugzilla-daemon at ghostscript.com
Sat Jul 23 10:01:22 UTC 2011


Robin Watts <robin.watts at artifex.com> changed:

           What    |Removed                     |Added
             Status|REOPENED                    |RESOLVED
         Resolution|                            |FIXED

--- Comment #18 from Robin Watts <robin.watts at artifex.com> 2011-07-23 10:01:16 UTC ---
After consultantion with Russell, my patch has been committed as:

commit 7f5d3d7b298bbabc13a484e38e749d572d817bc8
Author: Robin Watts <Robin.Watts at artifex.com>
Date:   Thu Jul 21 20:42:33 2011 +0100

    Fix bug 692235: Rendering to 8bit colors shows bad colors.

    The display device uses an RGBK space for 8 bit rendering. Currently
    this corresponds to a palette of 96 colors; 2 bits each for R,G,B,
    supplemented by 16 greys.

    This review alters it to use a 6x6x6 RGB cube, supplemented by 40 grey

    In fact, this is slightly wasteful as we repeat the black and white
    representations as color and as greyscale, but it's a huge improvement
    on what we had before.

    No cluster differences expected as we don't test the display device.


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