What's My JND? 0.0089 Can you beat it? https://www.keithcirkel.co.uk/whats-my-jnd/?r=A30iKP__7_Hb #WhatsMyJND
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Too Much Color
11–20 of 71 posts
Re: Too Much Color
#12Am I pretty?? (story)
Re: Too Much Color
#13Earlier quoted context omitted.
Computer screens have three-dimensional color spaces. Tetrachromacy doesn't change that.
Is that so? Our color perception is weird. It's one dimension split in three overlapping sectors. Adding a fourth sector may add information that makes it easier to distinguish colors.
We do have four sectors, 3 color perception and then the brightness perception that is used in the dark. In mid darkness you get a mix of all of those, although the fourth is not really perceived as a color so it can be a bit hard to use.
Re: Too Much Color
#14What's My JND? 0.0089 Can you beat it? https://www.keithcirkel.co.uk/whats-my-jnd/?r=A30iKP__7_Hb #WhatsMyJND
0.0042 apparently https://www.keithcirkel.co.uk/whats-my-jnd/?r=AaYkKP___-u-
There's was 2 or 3 where i had no idea, guessed and was a way off.
There's was 1 where i did a hail Mary and got it. It was interesting how some even towards the end were really obvious and others were really subtle - I'd say I did better with purple tones and worst with the blue / greys.
Re: Too Much Color
#15What's My JND? 0.0089 Can you beat it? https://www.keithcirkel.co.uk/whats-my-jnd/?r=A30iKP__7_Hb #WhatsMyJND
That mostly depends on the quality of your screen.
Re: Too Much Color
#16> The magic number to remember is the "Just Noticeable Difference" (JND). For dE00, JND is around 2.0. Below that, people struggle to tell two colours apart. Below 1.0, basically no one can. Except for a tetrachromat. Specifically, a strong tetrachromat that has both four colour channels in the brain and a different frequency on the fourth cone. Who are, admittedly, hella rare. Apparently there are less than a few do…
> admittedly, hella rare. Apparently there are less than a few dozen confirmed world-wide
What's actually hella rare is tests for tetrachromacy. Given the total number of people who have ever taken such a test, I think it's reasonable to assume there are significantly more than a few dozen actual tetrachromats out there.
Re: Too Much Color
#17> The magic number to remember is the "Just Noticeable Difference" (JND). For dE00, JND is around 2.0. Below that, people struggle to tell two colours apart. Below 1.0, basically no one can. Except for a tetrachromat. Specifically, a strong tetrachromat that has both four colour channels in the brain and a different frequency on the fourth cone. Who are, admittedly, hella rare. Apparently there are less than a few do…
Computer screens have three-dimensional color spaces. Tetrachromacy doesn't change that.
And the eye cones not are sharp filter, they overlap ranges with mid-low sensibility. That must be nought to someone with Tetrachromacy to percibe something different on a RGB screen.
> More precisely, she had an additional cone type L′, intermediate between M and L in its responsivity, and showed 3 dimensional (M, L′, and L components) color discrimination for wavelengths 546–670 nm (to which the fourth type, S, is insensitive). Source: Wikipedia
Re: Too Much Color
#18What's My JND? 0.0089 Can you beat it? https://www.keithcirkel.co.uk/whats-my-jnd/?r=A30iKP__7_Hb #WhatsMyJND
0.0021
Re: Too Much Color
#19lol, the website reminds me of tropes like the professional cleaner whose house is messy, the chef who eats instant noodles at home, or the haut couture fashion designer who only wears jeans and tees. The colour expert whose website is monochrome.
Re: Too Much Color
#20> The magic number to remember is the "Just Noticeable Difference" (JND). For dE00, JND is around 2.0. Below that, people struggle to tell two colours apart. Below 1.0, basically no one can. Except for a tetrachromat. Specifically, a strong tetrachromat that has both four colour channels in the brain and a different frequency on the fourth cone. Who are, admittedly, hella rare. Apparently there are less than a few do…
> But they do exist Do they?
Do you doubt genetic and microbiological science?