Wooo print prepress op eyes - and one's colourblind!

https://mastodon.social/@film_girl/116207312113330693

@NanoRaptor
That was pretty fun!

It's not wrong either, I manually calibrate all my displays by eye and in another life would absolutely love to do that as a job lol.

@NanoRaptor Hey that was challenging, i love these color games

@NanoRaptor I had a few real clangers, but I think I did pretty well considering I just did it on my phone.

https://www.keithcirkel.co.uk/whats-my-jnd/?r=AQIjKP__86_f

@TechTangents @NanoRaptor Hey I'm not that far off!

@techokami @TechTangents @NanoRaptor huh, 0.0039… on an uncleaned laptop from 2007, which surprises me.

I had a mismatch early on (step 17 or something) but the next one was easy again… perhaps different colours render better or worse here.

…

…

… oh, I ought to have disabled gammastep first, probably.

@techokami @TechTangents @NanoRaptor … or tried during daylight.

@NanoRaptor Not quite that, landed at 0.0044. Anyway, interesting!

@jyrgenn @NanoRaptor I suspect that something in the display chain is subtly edge-enhancing the resulting image (because e.g. your LCD panel is really only 18-bit and it's faking 24-bits) and that's enough to subconsciously draw your attention to the dividing line.

@NanoRaptor Second try was worse; after cleaning the relatively smudgy laptop screen and more concentrated searching (tilting the screen helped in cases) improved to 0.0036.

@pndc @NanoRaptor Maybe. I want to try it on the Eizo anyway and see if that makes a difference.

@mirabilos @techokami @TechTangents @NanoRaptor With a lot of moving the window to see which lines move :)

@techokami @kabel42 @NanoRaptor @TechTangents moving what now?

Ah. I just have it fullscreen.

@pndc @NanoRaptor Oh, and it is the screen of a 14” MacBook Pro M1 Pro, which I would assume (without really knowing that, admittedly) is relatively good. Any details on that?

@NanoRaptor with 68-years-old eyes - What's My JND? 0.0034
Can you beat it? https://www.keithcirkel.co.uk/whats-my-jnd/?r=AVchKP__-6vx

@NanoRaptor

0.0085. I might try again on my OLED phone, rather than cheap LCD monitor. ;)

0.0062 on OLED. I think I took it a little slower, too. ;)

@NanoRaptor wow! What device/display you used?

@felipe that one was on an apple studio display, about 3 years old.