[argyllcms] Re: Issue reading illuminant spectrum

  • From: Niccolò Belli <darkbasic4@xxxxxxxxx>
  • To: argyllcms@xxxxxxxxxxxxx
  • Date: Fri, 05 Nov 2010 17:38:32 +0100

Il 05/11/2010 14:10, Niccolò Belli ha scritto:
> Anyway I'm doing some more tests with:
> - emissive measurement mode
> - sunlight

One more lamp (a very powerful one), this time I tried with -e mode. I
got "Sensor is saturated", so I had to place it about 1 meter from the lamp.

Here is the result:
http://darkbasic.homelinux.com/images/lamp_e_mode.png

Level is 90!

From the same position I did one more test with -a mode:
http://darkbasic.homelinux.com/images/lamp_a_mode.png

Level is 0,12 and the spectrum is very different :(

I became suspicious and I had a doubt, so I reversed the Colormunki:
http://darkbasic.homelinux.com/images/lamp_a_mode2.png

Level is 60! The ambient sensor is in a different position, it's on the
top of the instrument! O_o
This time the instrument is only 30cm far from the lamp, instead of 1mt.
Anyway the level is still very high.

The two spectrum are very similar, but which mode is the best?
I had not been able to save the spectrum because under linux I get this
error with argyll 1.3.2 as soon as I close the plot window:

XIO:  fatal IO error 11 (Resource temporarily unavailable) on X server ":0"
      after 2174 requests (2170 known processed) with 0 events remaining.


Darkbasic

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