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Display Calibration Light Illusion Forums / Display Calibration /  
 

Can CS assign a global "grade" to a profile?

 
Author FidelioX
ZRO
Male
#1 | Posted: 19 Dec 2025 08:19 
Good morning,
is there a way in ColorSpace to assign a global accuracy grade to a profile?
So, perhaps a global value that can be used to evaluate the accuracy of a verification profile.

thank you

Author Steve

INF
Male
#2 | Posted: 19 Dec 2025 08:57 
Sorry to say I have absolutely no idea what you mean...

Steve
Steve Shaw
Mob Boss at Light Illusion

Author FidelioX
ZRO
Male
#3 | Posted: 19 Dec 2025 09:13 
Let me give you an example: Imagine you've created four different calibration LUTs. We apply them and create a 6P verification profile. Perhaps, looking at the four profiles, we don't see any major differences. Or perhaps there are differences at different points in the profile.
It would be nice if CS applied a sort of quality "score" to each profile, analyzing how many points are above a certain error threshold and by what amount.

This way, CS would already be able to give us an indication of the global accuracy level of each profile.

Of course, it's up to us to conduct further investigations to determine which is actually the best.
But I think it could be useful data.

Author Steve

INF
Male
#4 | Posted: 19 Dec 2025 10:02 
Do you mean the 'Gamut Coverage' value?

Steve
Steve Shaw
Mob Boss at Light Illusion

Author FidelioX
ZRO
Male
#5 | Posted: 19 Dec 2025 18:45 
No, I mean some kind of global delta error.

Author Steve

INF
Male
#6 | Posted: 19 Dec 2025 18:51 
FidelioX
That is exactly what the Gamut Coverage value is...

Steve
Steve Shaw
Mob Boss at Light Illusion

Author FidelioX
ZRO
Male
#7 | Posted: 21 Dec 2025 08:56 
Steve, about the hypotheses...it's possible that two profiles have very close gamut coverage, but within them, points are placed in completely different positions.
For example, in one profile, almost all the green points...and in the other profile, almost all the red points.
If this hypothesis is theoretically possible...we will have two gamuts with very similar gamut coverage, but within them, points are decidedly different.
If this hypothesis is theoretically possible...it's clear that the gamut coverage score isn't sufficient to capture the overall accuracy of one profile compared to the other.

Let me know. Thanks.

Author Steve

INF
Male
#8 | Posted: 21 Dec 2025 09:20 
You would have a very different Average dE value for each profile, as shown on the Manual Measure page and in Reports, etc.
Combined with the Gamut Coverage value, that looks to be what you are asking for.

Steve
Steve Shaw
Mob Boss at Light Illusion

Author FidelioX
ZRO
Male
#9 | Posted: 22 Dec 2025 15:00 
Yes Steve,
An overall score that combines the delta errors of the individual measured points and the coverage of the reference gamut.

Author Steve

INF
Male
#10 | Posted: 22 Dec 2025 17:57 
No, as combining the two is not a valid metric in itself.
The Average dE is the figure you are basically asking for.

Steve
Steve Shaw
Mob Boss at Light Illusion

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 Can CS assign a global "grade" to a profile?

 

 
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