Hey Roger, The threshold of differentiation is, I suspect, different for different people, taking into consideration the brain as "computer" or perceiver and the eye as camera or sensor. Environment will also be a big factor--or how the colors are presented: two patches close in color next to each other will be more easily distinguishable that those colors presented amongst other disparate colors. David -- DAVID SCHARF PHOTOGRAPHY On 1/6/20 6:20 PM, Roger Breton via colorsync-users wrote:
David,
It comes back to my "idea" of "threshold"; what's the 'criteria' that makes two colors appear "different" to a 'normal observer'? It has to be 'measurably' different otherwise, we're going to argue until the cows come home.
/ Roger
-----Original Message----- From: colorsync-users <colorsync-users-bounces+graxx=videotron.ca@lists.apple.com> On Behalf Of David Scharf via colorsync-users Sent: Monday, January 6, 2020 7:32 PM To: Andrew Rodney <andrew@digitaldog.net>; david@scharfphoto.com; Florian Höch via colorsync-users <colorsync-users@lists.apple.com> Cc: David Scharf <electronman@roadrunner.com> Subject: Re: NEC PA271Q "Native" chromaticities
Hi Andrew,
My point was that when there are colors separated by an extremely small increment, they may be indistinguishable from each other and we may may perceive them to be the same color--so not invisible but visible--just not perceptually different. Seems like we are making two different valid arguments.
DAVID SCHARF PHOTOGRAPHY
*DAVID SCHARF PHOTOGRAPHY*
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