I don't get it. Is it saying Olo is an example of a color that can't be displayed on modern RGB displays?
I wonder if someone could sell pieces of paper which have this color?
Olo (Color)
101–110 of 110 posts
Re: Olo (Color)
#102Earlier quoted context omitted.
lol is the complementary color of olo in the theoretical lms color space.
I guess it’s #FF0033 or so.
So could we stare at #FF0033 for a minute and then close our eyes?
(Context: negative afterimage, https://en.wikipedia.org/wiki/Afterimage)
Re: Olo (Color)
#103I don't get it. Is it saying Olo is an example of a color that can't be displayed on modern RGB displays? I wonder if someone could sell pieces of paper which have this color?
No. There are lots of colors that our eyes can see, but which no 3-color device can produce. They're usually highly saturated, and many of the deep greens can't be produced by 3-color devices.
What's going on here is different. The researchers managed to identify individual cones in the retinas of human subjects. They then shot tiny pulses of light at ONLY the M (green-sensitive) cones. This avoided stimulating the other cones, and subjects saw a color they could not have seen otherwise.
The issue here is that the S, M, and L cones have overlapping sensitivity curves: normally if you shine green light on the retina, all three cones will respond, and your brain will say "green". But here they are stimulating only one cone, not all 3.
Re: Olo (Color)
#104[dead]
Re: Olo (Color)
#105Re: Olo (Color)
#106This is how people talk about how ancient greeks viewed blue, except we actually can't see this color normally.
https://www.deadlanguagesociety.com/p/history-english-colour... > It’s not that people in the past couldn’t see blue. Indeed, there were several words which could refer to things we would call blue today, but these words could also describe things we’d assign to other colours too, especially grey and green.
Yes, hence my comment.
Re: Olo (Color)
#107What confuses me with these triangles is: shouldn't the color space be 3-dimensional? One dimension for each cone? And then the real-world percievable colors are a 1d-manifold in there?
Re: Olo (Color)
#108What confuses me with these triangles is: shouldn't the color space be 3-dimensional? One dimension for each cone? And then the real-world percievable colors are a 1d-manifold in there?
color is two-dimensional
it's easy to see: RGB somehow contains brightness information but that's not part of color, so one dimension less
Re: Olo (Color)
#109What confuses me with these triangles is: shouldn't the color space be 3-dimensional? One dimension for each cone? And then the real-world percievable colors are a 1d-manifold in there?
color is two-dimensional it's easy to see: RGB somehow contains brightness information but that's not part of color, so one dimension less
Ok, sure, but those LMS triangles are just for hue..
So you are saying that 3d space has a 3d suspace of visible light?
Re: Olo (Color)
#110This reminds me of a thought I had as a child, that what I see as one color could be what everyone else sees as another color: this had blown my mind back then and thought I was a genius for coming up with it ^_^
is there any way to disprove this?
I guess the discussion would turn into a philosophical one about what the other person's conscience even means, and/or if other people are indeed conscient :)