For those who want to test their perception of colour, I made a little game called "What's My JND"
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For those who want to test their perception of colour, I made a little game called "What's My JND"
What's My JND?
Find your Just Noticeable Difference in colour perception. How small a colour difference can you actually see?
(www.keithcirkel.co.uk)
@keithamus got 0.0018, but I'm also on an HDR display and was wondering if that helps with getting a lower value there.
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For those who want to test their perception of colour, I made a little game called "What's My JND"
What's My JND?
Find your Just Noticeable Difference in colour perception. How small a colour difference can you actually see?
(www.keithcirkel.co.uk)
@keithamus This was fun. My partner got 0.0018!
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@joface this is the one consistent piece of feedback. Maybe we should start a support group.
@keithamus @joface I pulled out a cloth and wiped my screen down to get the optimal score I could
glad it's not just me -
@keithamus got 0.0018, but I'm also on an HDR display and was wondering if that helps with getting a lower value there.
@karolherbst they're all in sRGB so HDR _shouldn't_ matter, but having a good display which can represent all of sRGB certainly will matter.
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For those who want to test their perception of colour, I made a little game called "What's My JND"
What's My JND?
Find your Just Noticeable Difference in colour perception. How small a colour difference can you actually see?
(www.keithcirkel.co.uk)
@keithamus Fun! And interesting!

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@emkingma you're supposed to click the area where you think the background transitions from one colour to the next. It could be clearer, but I am not sure how best to make it clearer.
@keithamus thanks, that's all I needed to know.
Mine's 0.0062
https://www.keithcirkel.co.uk/whats-my-jnd/?r=AmghKP__7l-8 -
For those who want to test their perception of colour, I made a little game called "What's My JND"
What's My JND?
Find your Just Noticeable Difference in colour perception. How small a colour difference can you actually see?
(www.keithcirkel.co.uk)
@keithamus Well I guess it's a draw.
The dirt streaks on my screen kept throwing me off while searching for the disturbance in the force.

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@emkingma you're supposed to click the area where you think the background transitions from one colour to the next. It could be clearer, but I am not sure how best to make it clearer.
@keithamus @emkingma I feel like it needs a little instruction "Click on the line between colours" displayed before your first click. I was confused until I'd got the first one wrong.
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For those who want to test their perception of colour, I made a little game called "What's My JND"
What's My JND?
Find your Just Noticeable Difference in colour perception. How small a colour difference can you actually see?
(www.keithcirkel.co.uk)
@keithamus
Light colors fooled me, especially greens. I'm marking this down to my display not being able to display these nuances, never ever my eyes (note that this sentence contains sarcasm)What's My JND? 0.0032
Can you beat it? https://www.keithcirkel.co.uk/whats-my-jnd/?r=AUAgKP__7zj1 -
@keithamus @emkingma I feel like it needs a little instruction "Click on the line between colours" displayed before your first click. I was confused until I'd got the first one wrong.
@harry_wood @emkingma Good feedback. I've updated the intro wording.
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