RE: Quantum Dot Tech - cheap wide gamut but is it ready for mainstream?
RE: Quantum Dot Tech - cheap wide gamut but is it ready for mainstream?
- Subject: RE: Quantum Dot Tech - cheap wide gamut but is it ready for mainstream?
- From: Max Derhak <email@hidden>
- Date: Mon, 28 Mar 2016 16:45:29 +0000
- Thread-topic: Quantum Dot Tech - cheap wide gamut but is it ready for mainstream?
Using narrow primaries to discover color matching functions for an individual is different than using them to perform color reproduction with the intent that the observed appearance by multiple observers is the same. The Guild and Wright experiments resulted in multiple individualized color matching functions that were then averaged together to establish the "standard" observer. Thus the standard observer doesn't necessarily predict the color matches of individual observers - especially when narrow primaries are used. Things are much better when broad primaries are used since the slight shifts in matching functions aren’t as critical. A study of observer variability relative to narrow primaries was performed by Asano with results that can be found at (http://www.cis.rit.edu/~yxa8513/Publications/Paper_CIC2014.pdf).
Max Derhak (PhD)
Principal Scientist
-----Original Message-----
From: Roger Breton [mailto:email@hidden]
Sent: Monday, March 28, 2016 12:11 PM
To: Max Derhak; ''colorsync-users?lists. apple. com' List'
Subject: RE: Quantum Dot Tech - cheap wide gamut but is it ready for mainstream?
Please excuse my ignorance, Max, but what's the difference between this type of display narrow primaries and the original 1920's Guild and Wright RGB colorimetry experiments where narrow primaries were also used, as far as observer metamerism is concerned?
/ Roger
-----Original Message-----
From: colorsync-users-bounces+graxx=email@hidden [mailto:colorsync-users-bounces+graxx=email@hidden] On Behalf Of Max Derhak
Sent: 28 mars 2016 09:56
To: 'colorsync-users?lists. apple. com' List <email@hidden>
Subject: RE: Quantum Dot Tech - cheap wide gamut but is it ready for mainstream?
One of my concerns with displays having really narrow primaries is that they are subject to much greater observer metamerism (among color normal observers). The problem of measuring for calibration is compounded with the problem of getting observer agreement on appearance.
Max Derhak (PhD)
Principal Scientist
Onyx Graphics Inc.
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