[argyllcms] Absolute minimum number of patches for a matrix/TRC monitor profile

  • From: Roger <graxx@xxxxxxxxxxxx>
  • To: argyllcms@xxxxxxxxxxxxx
  • Date: Wed, 03 Feb 2010 21:49:43 -0500

I'd like to use Argyll in my upcoming monitor calibration and profiling
class. My ideal scenario would be to have the students interface with the
crop of instruments I have (Optix, DTP92, Spyder, ColorMunki, EyeOnePro,
Huey) to collect measurements. Since they would be recording measurements by
hand, I can't have them manually take 836 measurements. 

The absolute bare minimum of patches to create a display ICC profile could
be :

1) white (RGB 255, 255, 255)
2) black (RGB 0, 0, 0 -- not sure that this is really useful)
3) gray  (RGB 127, 127, 127)
4) red   (RGB 255,0,0)
5) green (RGB 0,255,0)
6) blue  (RGB 0,0,255)
7) cyan  (RGB 0,255,255)
8) magenta (RGB 255,0,255)
9) yellow (RGB 255,255,0).

Perhaps a few other measurements like 50% Red and 50% Green and 50% Blue.
But not more than that.

Could I then not open a text editor and type in the measured chromaticities
and luminance (xyY), and use those to build a profile with Argyll? 

Obviously I'm not looking for utmost precision but pedagogical value.

Best / Roger



Other related posts: