[argyllcms] Measurements from instruments.

  • From: Sigurður Guðbrandsson <sigurdur@xxxxxxxxxxxx>
  • To: <argyllcms@xxxxxxxxxxxxx>
  • Date: Fri, 1 Aug 2008 13:04:03 -0000

Hello everyone.
 
First things first; Graeme, thanks for making this product. It is invaluable in 
my opinion.
 
On to buisness.
 
I am quite the newbie in color/luminance/chrominance systems, however I am a 
quick learner.
 
My focus is to build a library that is usable with TCL. I am only going to 
start with two devices first(dtp92 and i1disp), but I plan on adding an extra 
device (the X-rite Chroma 5) to your library (eith augmented i1 driver or 
another solution..).
I have the X-rite DTP94 colorimeter and I need to extract information from 
readings into another program that does a DICOM (NEMA DICOM ps 3.14) 
calibration on monitors on different machines running different OS's (Sun 
Solaris, Apple MacOSX, Linux, SGI IRIX etc. etc.). This program expects 
luminance in cd/m^2.
 
Seeing that (at least Graeme) some people here know more about the theory and 
math of colors, if I want to get only the Luminance measurement (nits .. 
cd/m^2) from the DTP94 (that conforms to CIEXYZ 1931), would it be enough to 
grab the Y value (from XYZ, seeing that it is supposed to be in nits) and use 
it to get the nits(cd/m^2)?
 
I am planning on adding the Chroma 5 to the existing database of devices, how 
did it go with adding the Chroma 4? (maybe it is compatible with Chroma 5)
 
With regards,
 Sigurður Guðbrandsson

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  • » [argyllcms] Measurements from instruments.