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Gamut Coverage on PC Monitor

 
Author mcg222
ZRO
#1 | Posted: 11 Feb 2018 03:52 
Hi,

I have been experimenting the last few weeks with profiling using LightSpace DPS. I have created a 3D LUT for ITU-R BT.1886 using DisplayCal for a Dell UP2516D monitor (using RG Phosphor filter) and when I profile in LightSpace DPS (again using RG phosphor) I get a decent grey scale delta-e (<2), but my gamut coverage is ~93%. Without the LUT I get 99.3% gamut coverage in LightSpace but, of course, the grey scale delta-e is way off. Is this reduction in gamut coverage something that should be expected with a non color critical broadcast monitor, or is something funky going on?

Grant

Author Steve

INF
Male
#2 | Posted: 11 Feb 2018 08:00 | Edited by: Steve 
Sorry, as we do not manufacture Displaycal we cannot comment on its level of calibration inaccuracy.

Steve
Steve Shaw
Mob Boss at Light Illusion

Author mcg222
ZRO
#3 | Posted: 11 Feb 2018 15:31 
Steve
Fair enough, Steve. Let me put it this way - LightSpace DPS reports that my Dell UP2516D monitor has 99.3% gamut coverage for ITU-R BT.1886 without any LUT on it. If I were to do a 3 day rental of LightSpace LTE and create a 3D LUT for ITU-R BT.1886, would a 7% gamut reduction be an expected result (ie for a non color critical broadcast monitor)?

Thanks,
Grant

Author Steve

INF
Male
#4 | Posted: 11 Feb 2018 15:32 | Edited by: Steve 
Impossible to answer without knowing the volumetric gamut coverage of the display.
It all depends where the 'issues' reside.
You would have to perform a full volumetric profile and see where the actual colour resides.

Steve
Steve Shaw
Mob Boss at Light Illusion

Author mcg222
ZRO
#5 | Posted: 11 Feb 2018 15:58 
Steve
Thanks for the quick response, Steve.
Grant

Display Calibration Light Illusion Forums / Display Calibration /
 Gamut Coverage on PC Monitor

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