blog/data/2012-05-31-colorhug.txt

   1 Title: First monitor calibration using ColorHug
   2 Tags: english
   3 Date: 2012-05-31 22:10
   4
   5 <p>A few days ago my color calibration gadget
   6 <a href="http://www.hughski.com/index.html">ColorHug</a> arrived in the
   7 mail, and I've had a few days to test it.  As all my machines are
   8 running Debian Squeeze, where
   9 <a href="http://packages.qa.debian.org/c/colorhug-client.html">the
  10 calibration software</a> is missing (it is present in Wheezy and Sid),
  11 I ran the calibration using the Fedora based live CD.  This worked
  12 just fine.  So far I have only done the quick calibration.  It was
  13 slow enough for me, so I will leave the more extensive calibration for
  14 another day.</p>
  15
  16 <p>After calibration, I get a
  17 <a href="http://en.wikipedia.org/wiki/ICC_profile">ICC color
  18 profile</a> file that can be passed to programs understanding such
  19 tools.  KDE do not seem to understand it out of the box, so I searched
  20 for command line tools to use to load the color profile into X.
  21 xcalib was the first one I found, and it seem to work fine for single
  22 monitor setups.  But for my video player, a laptop with a flat screen
  23 attached, it was unable to load the color profile for the correct
  24 monitor.  After searching a bit, I
  25 <a href="http://ubuntuforums.org/showthread.php?t=1347896">discovered</a>
  26 that the dispwin tool from the argyll package would do what I wanted,
  27 and a simple</p>
  28
  29 <p><pre>
  30 dispwin -d 1 profile.icc
  31 </pre></p>
  32
  33 <p>later I had the color profile loaded for the correct monitor.  The
  34 result was a bit more pink than I expected.  I guess I picked the
  35 wrong monitor type for the "led" monitor I got, but the result is good
  36 enough for now.</p>