RE: perceptual differences in Lab deltaE
I hate to say this but you won't get to the bottom of this until you compared them side by side. If you have the time, pack one of your Dell and drive up to Montréal. I have good coffee 😊 / Roger -----Original Message----- From: colorsync-users <colorsync-users-bounces+graxx=videotron.ca@lists.apple.com> On Behalf Of Wire ~ via colorsync-users Sent: Tuesday, January 7, 2020 8:38 PM To: 'colorsync-users?lists.apple.com' List <colorsync-users@lists.apple.com> Subject: Re: perceptual differences in Lab deltaE The NEC is probably a 3% better display than the Dell at 4x the price
In order to avoid a showdown I concede that the NEC is a 10% better display On Tue, Jan 7, 2020 at 17:45 Roger Breton via colorsync-users < colorsync-users@lists.apple.com> wrote:
I hate to say this but you won't get to the bottom of this until you compared them side by side. If you have the time, pack one of your Dell and drive up to Montréal. I have good coffee 😊
/ Roger
-----Original Message----- From: colorsync-users <colorsync-users-bounces+graxx= videotron.ca@lists.apple.com> On Behalf Of Wire ~ via colorsync-users Sent: Tuesday, January 7, 2020 8:38 PM To: 'colorsync-users?lists.apple.com' List < colorsync-users@lists.apple.com> Subject: Re: perceptual differences in Lab deltaE
The NEC is probably a 3% better display than the Dell at 4x the price
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On Jan 7, 2020, at 6:54 PM, Wire ~ via colorsync-users <colorsync-users@lists.apple.com> wrote:
In order to avoid a showdown I concede that the NEC is a 10% better display
More assumptions, more stat's produced without any testing it seems. So no, you don't have an NEC SpectraView nor have you measured anything; do you even own a Spectrophotometer? Hard to take you seriously Actually impossible to take you seriously if we consider the following: Humans (and cameras and scanners) do not have a color gamut (?), 3 answers, two for anyone with critical thinking should accept, one that's an illustration of digging holes based on assumptions, misunderstanding and denial of facts, like making up percentages of which display is better: 1. Mark D. Fairchild Founding Head, Integrated Sciences Academy Professor & Director, Program of Color Science/Munsell Color Science Laboratory Rochester Institute of Technology B.S./M.S., Imaging Science (née Photographic Science & Instrumentation), RIT, 1986 M.A./Ph.D., Vision Science (Human Sensation & Perception), UR, 1990 Publications (197) https://www.researchgate.net/scientific-contributions/8289914_Mark_D_Fairchi... "This one is easy for me … cameras absolutely do not have gamuts. So I fall strongly, and unequivocally, on the side that says cameras do not have color gamuts. (FWIW, this isn’t even a discussion among the faculty in our program, we all agree on this.)" 2. Parker Plaisted Parker has a B.S. degree in Physics-engineering from Washington and Lee University, an M.S. degree in Imaging Science from the Rochester Institute of Technology (RIT), and an M.B.A. degree with concentrations in marketing and business strategy from Vanderbilt University. While at RIT, Parker studied color science in the Munsell Color Science Laboratory under professors Mark D. Fairchild and Roy S. Berns. "A Digital Camera Does Not Have A Color Gamut" http://www.color-image.com/2012/08/a-digital-camera-does-not-have-a-color-ga... 3. Someone calling himself or herself Wire, alias for some newbie posting on the ColorSync List: "The point about there "cameras not having gamut" is another priestly proclamation." Not difficult for me, hopefully others to come to a conclusion which text to take seriously and which is utter silliness. Do you really need to keep digging that hole any deeper? Andrew Rodney http://www.digitaldog.net/ <http://www.digitaldog.net/>
I've been posted my measurements in the share folder I linked many times before, including Dells cert and my DCal measurements. I updated the factory Adobe RGB preset verification with an large testchart report, it passes conformance with flying colors. RMS ave dE at 1.0 max at 2. Agrees with Dell's claims and looks dead on. I'll repost the share link in a few, I'm having some dinner :) Ya big galoot! I'm trying to do a verify pass on Display P3 but DCal is barfing and I submitted a bug report On Tue, Jan 7, 2020 at 18:00 Andrew Rodney <andrew@digitaldog.net> wrote:
On Jan 7, 2020, at 6:54 PM, Wire ~ via colorsync-users < colorsync-users@lists.apple.com> wrote:
In order to avoid a showdown I concede that the NEC is a 10% better display
More assumptions, more stat's produced without any testing it seems. So no, you don't have an NEC SpectraView nor have you measured anything; do you even own a Spectrophotometer? Hard to take you seriously
Actually impossible to take you seriously if we consider the following:
Humans (and cameras and scanners) do not have a color gamut (?), 3 answers, two for anyone with critical thinking should accept, one that's an illustration of digging holes based on assumptions, misunderstanding and denial of facts, like making up percentages of which display is better:
1. Mark D. Fairchild Founding Head, Integrated Sciences Academy Professor & Director, Program of Color Science/Munsell Color Science Laboratory Rochester Institute of Technology B.S./M.S., Imaging Science (née Photographic Science & Instrumentation), RIT, 1986 M.A./Ph.D., Vision Science (Human Sensation & Perception), UR, 1990 Publications (197)
https://www.researchgate.net/scientific-contributions/8289914_Mark_D_Fairchi...
"This one is easy for me … cameras absolutely do not have gamuts. So I fall strongly, and unequivocally, on the side that says cameras do not have color gamuts. (FWIW, this isn’t even a discussion among the faculty in our program, we all agree on this.)"
2. Parker Plaisted Parker has a B.S. degree in Physics-engineering from Washington and Lee University, an M.S. degree in Imaging Science from the Rochester Institute of Technology (RIT), and an M.B.A. degree with concentrations in marketing and business strategy from Vanderbilt University. While at RIT, Parker studied color science in the Munsell Color Science Laboratory under professors Mark D. Fairchild and Roy S. Berns.
"A Digital Camera Does Not Have A Color Gamut"
http://www.color-image.com/2012/08/a-digital-camera-does-not-have-a-color-ga...
3. Someone calling himself or herself Wire, alias for some newbie posting on the ColorSync List: "The point about there "cameras not having gamut" is another priestly proclamation."
Not difficult for me, hopefully others to come to a conclusion which text to take seriously and which is utter silliness.
Do you really need to keep digging that hole any deeper?
Andrew Rodney http://www.digitaldog.net/
And we'll see the measurements from what device on what SpectraView model? You know, the one that's 3% better and then minutes later, 10% better.... Hole now 3 feet deeper.
On Jan 7, 2020, at 7:09 PM, Wire ~ via colorsync-users <colorsync-users@lists.apple.com> wrote:
I've been posted my measurements in the share folder I linked many times before, including Dells cert and my DCal measurements. I updated the factory Adobe RGB preset verification with an large testchart report, it passes conformance with flying colors. RMS ave dE at 1.0 max at 2. Agrees with Dell's claims and looks dead on. I'll repost the share link in a few, I'm having some dinner :) Ya big galoot!
I'm trying to do a verify pass on Display P3 but DCal is barfing and I submitted a bug report
Barfing; yeah, great confidence in your abilities.... Andrew Rodney http://www.digitaldog.net/ <http://www.digitaldog.net/>
participants (4)
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Andrew Rodney
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graxx@videotron.ca
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John Gnaegy
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Wire ~