Bob, Call me nuts, but I'm actually looking forward to the day I'll have a cataract removed for the very reason you mention, that experience of looking at the world, all of a sudden, *without* yellow filters. I read the same account as you described, in the color literature, that the sky takes on a stronger vivid shade of blue and so on. All I know about the Standard Observer is that it was made of two groups of men but I have no details on their age... I guess they had "normal color vision" 😊 / Roger -----Original Message----- From: colorsync-users <colorsync-users-bounces+graxx=videotron.ca@lists.apple.com> On Behalf Of Bob-BTY via colorsync-users Sent: Tuesday, January 14, 2020 10:42 AM To: colorsync-users@lists.apple.com Subject: Human color vision Many people don't seem to know that the lenses in the human eye start going yellow with age. By the age of 50 most people are looking at the world through yellow filters! I experienced this when having a lens replaced because of cataract. The new plastic lens was clear, and when I came out of the operating room, I could see that the dresses of the nurses (that were grey/white stripes before) were now blue/white when I looked at them with the new lens. With the yellow lens in my other eye they were still grey/white! A blue sky was now qite vivid with the new plastic lens, not so with the old yellow lens. I played about with Wratten filters to see how yellow my original lens was, but sadly I can't find the details any more, and nnow have two clear plastic lenses. I wonder how old the 'Standard Observer' was? Bob Frost _______________________________________________ Do not post admin requests to the list. They will be ignored. colorsync-users mailing list (colorsync-users@lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/colorsync-users/graxx%40videotron.ca This email sent to graxx@videotron.ca
Dear all, I was thinking if and what to say here. But after 15 years of heavy involvement in international standardisation organisations (ISO TC130, ICC, CIE) I would like to give me 2 cent here. a) the gamut definition in standards that follow democratic rules (after long and tedious discussions such as ISO, CIE, ICC) focusing directly or indirectly on output devices (https://ttbs.isolutions.iso.org/obp/ui/#search and search for gamut) b) if you want to use it for input devices go to such working groups and participate Studying at RIT I learned that there are two "schools": One is in favour of the idea to attribute an input device with a colour volume and the other isn't. Ergo: So if you cannot agree on a definition for input devices your arguments (or patience or endurance) are not good/convincing enough. Regards Andy Kraushaar Fogra Colour Management Symposium 2020 (#CMS2020) – 12/13. Feb. 2020 Matching colours – Matching people https://www.fogra.org/CMS/ ————————————————————————— Dr.-Ing. Andreas Kraushaar Abt. Vorstufentechnik Fogra Forschungsinstitut für Medientechnologien e.V. Einsteinring 1a 85609 Aschheim b. München Telefon: +49 89. 431 82 - 335 Telefax: +49 89. 431 82 - 100 E-mail: kraushaar@fogra.org Internet: www.fogra.org -----Ursprüngliche Nachricht----- Von: colorsync-users <colorsync-users-bounces+andreas.kraushaar=gmx.de@lists.apple.com> Im Auftrag von Roger Breton via colorsync-users Gesendet: Dienstag, 14. Januar 2020 18:25 An: colorsync-users@lists.apple.com Betreff: RE: Human color vision Bob, Call me nuts, but I'm actually looking forward to the day I'll have a cataract removed for the very reason you mention, that experience of looking at the world, all of a sudden, *without* yellow filters. I read the same account as you described, in the color literature, that the sky takes on a stronger vivid shade of blue and so on. All I know about the Standard Observer is that it was made of two groups of men but I have no details on their age... I guess they had "normal color vision" 😊 / Roger -----Original Message----- From: colorsync-users <colorsync-users-bounces+graxx=videotron.ca@lists.apple.com> On Behalf Of Bob-BTY via colorsync-users Sent: Tuesday, January 14, 2020 10:42 AM To: colorsync-users@lists.apple.com Subject: Human color vision Many people don't seem to know that the lenses in the human eye start going yellow with age. By the age of 50 most people are looking at the world through yellow filters! I experienced this when having a lens replaced because of cataract. The new plastic lens was clear, and when I came out of the operating room, I could see that the dresses of the nurses (that were grey/white stripes before) were now blue/white when I looked at them with the new lens. With the yellow lens in my other eye they were still grey/white! A blue sky was now qite vivid with the new plastic lens, not so with the old yellow lens. I played about with Wratten filters to see how yellow my original lens was, but sadly I can't find the details any more, and nnow have two clear plastic lenses. I wonder how old the 'Standard Observer' was? Bob Frost _______________________________________________ Do not post admin requests to the list. They will be ignored. colorsync-users mailing list (colorsync-users@lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/colorsync-users/graxx%40videotron.ca This email sent to graxx@videotron.ca _______________________________________________ Do not post admin requests to the list. They will be ignored. colorsync-users mailing list (colorsync-users@lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/colorsync-users/andreas.kraushaar%40... This email sent to andreas.kraushaar@gmx.de
On 14 Jan 2020, at 21:48, Andreas Kraushaar via colorsync-users <colorsync-users@lists.apple.com> wrote:
Studying at RIT I learned that there are two "schools": One is in favour of the idea to attribute an input device with a colour volume and the other isn't.
A second school who dares to disagree with Andrew’s “facts”? How could that be possible? Perhaps it’s a geographic thing? The majority of papers I’ve seen on calculating input device gamuts are from the UK or Mainland Europe. — Martin Orpen Idea Digital Imaging Ltd
On Jan 14, 2020, at 3:25 PM, Martin Orpen via colorsync-users <colorsync-users@lists.apple.com> wrote:
On 14 Jan 2020, at 21:48, Andreas Kraushaar via colorsync-users <colorsync-users@lists.apple.com> wrote:
Studying at RIT I learned that there are two "schools": One is in favour of the idea to attribute an input device with a colour volume and the other isn't.
A second school who dares to disagree with Andrew’s “facts”?
How could that be possible?
What you’ve failed to understand is these are not “my” facts. I’ve provided facts from a large number of actual color scientists; from Munsell, RIT, etc. The question you should be asking yourself but can’t is; how can YOU disagree with the facts from so many experts in the field of color? I'm sorry that these facts continue to ruin your life.
Heresy! Henry Davis
On Jan 14, 2020, at 4:48 PM, Andreas Kraushaar via colorsync-users <colorsync-users@lists.apple.com> wrote: <Snip>
Studying at RIT I learned that there are two "schools": One is in favour of the idea to attribute an input device with a colour volume and the other isn't.
You'll finally be able to see violet again!!! DAVID SCHARF PHOTOGRAPHY *DAVID SCHARF * On 1/14/20 9:25 AM, Roger Breton via colorsync-users wrote:
Bob,
Call me nuts, but I'm actually looking forward to the day I'll have a cataract removed for the very reason you mention, that experience of looking at the world, all of a sudden, *without* yellow filters. I read the same account as you described, in the color literature, that the sky takes on a stronger vivid shade of blue and so on.
All I know about the Standard Observer is that it was made of two groups of men but I have no details on their age... I guess they had "normal color vision" 😊
/ Roger
-----Original Message----- From: colorsync-users <colorsync-users-bounces+graxx=videotron.ca@lists.apple.com> On Behalf Of Bob-BTY via colorsync-users Sent: Tuesday, January 14, 2020 10:42 AM To: colorsync-users@lists.apple.com Subject: Human color vision
Many people don't seem to know that the lenses in the human eye start going yellow with age. By the age of 50 most people are looking at the world through yellow filters! I experienced this when having a lens replaced because of cataract. The new plastic lens was clear, and when I came out of the operating room, I could see that the dresses of the nurses (that were grey/white stripes before) were now blue/white when I looked at them with the new lens. With the yellow lens in my other eye they were still grey/white! A blue sky was now qite vivid with the new plastic lens, not so with the old yellow lens. I played about with Wratten filters to see how yellow my original lens was, but sadly I can't find the details any more, and nnow have two clear plastic lenses. I wonder how old the 'Standard Observer' was?
Bob Frost
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. . . and of course there's Pantone's color of the year: https://www.pantone.com/color-intelligence/color-of-the-year/color-of-the-ye... . . . and an interesting read on cataract effects: https://web.archive.org/web/20181230070529/http://vsri.ucdavis.edu/research/... . . . and a couple about color in general: https://www.olympus-lifescience.com/en/microscope-resource/primer/lightandco... https://www.handprint.com/LS/CVS/color.html enjoy -----Original Message----- You'll finally be able to see violet again!!! DAVID SCHARF PHOTOGRAPHY *DAVID SCHARF * On 1/14/20 9:25 AM, Roger Breton via colorsync-users wrote:
Bob,
Call me nuts, but I'm actually looking forward to the day I'll have a cataract removed for the very reason you mention, that experience of looking at the world, all of a sudden, *without* yellow filters. I read the same account as you described, in the color literature, that the sky takes on a stronger vivid shade of blue and so on.
All I know about the Standard Observer is that it was made of two groups of men but I have no details on their age... I guess they had "normal color vision" 😊
/ Roger
-----Original Message----- From: colorsync-users <colorsync-users-bounces+graxx=videotron.ca@lists.apple.com> On Behalf Of Bob-BTY via colorsync-users Sent: Tuesday, January 14, 2020 10:42 AM To: colorsync-users@lists.apple.com Subject: Human color vision
Many people don't seem to know that the lenses in the human eye start going yellow with age. By the age of 50 most people are looking at the world through yellow filters! I experienced this when having a lens replaced because of cataract. The new plastic lens was clear, and when I came out of the operating room, I could see that the dresses of the nurses (that were grey/white stripes before) were now blue/white when I looked at them with the new lens. With the yellow lens in my other eye they were still grey/white! A blue sky was now qite vivid with the new plastic lens, not so with the old yellow lens. I played about with Wratten filters to see how yellow my original lens was, but sadly I can't find the details any more, and nnow have two clear plastic lenses. I wonder how old the 'Standard Observer' was?
Bob Frost
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participants (7)
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Andreas Kraushaar
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Andrew Rodney
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David Scharf
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graxx＠videotron.ca
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Henry Davis
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Martin Orpen
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SteveJ