Raymond Lau wrote:
I am having a problem with reading dark red (R<=~50, G=0, B=0) colors with an
i3 Display Pro and an LG 32EP950 monitor, which is a true RGB OLED made by
JOLED.
Here is what I am seeing. Test patch R=19,G=0,B=0.
If I do a plain spot read, it returns after 12 seconds:
Result is XYZ: 0.000000 0.000000 0.000000, D50 Lab: 0.000000 0.000000 0.000000
I also have an i1 Studio, and reading that same patch located in the center
of the screen, with -H high accuracy and printing out the spectral values
returns:
Result is XYZ: 0.220297 0.106411 0.016746, D50 Lab: 0.961207 4.752621
1.341096
Is this a timeout issue with adaptive integration? Is there a way to
increase the time beyond 12 seconds to avoid it?
Strangely enough, it’s not just Argyll that fails with these dark reds. LG’s
own LG Calibration Studio also gets zero results for dark reds.