Why we're blind to the color blue

Post by dalmo3 » Sat, Jul 17, 2021, 12:26 PM UTC

sgtnoodle wrote: post #199

dalmo3 wrote: post #191

Earlier quoted context omitted.

Thanks for the explanation! I can certainly perceive all those flickering effects when moving the eyes. Slow PWM is hell, but some stuff like colour separation can be cool too. My favourite trick is making a digital clock's numbers "slide" over the clock's surface, in a sort of parallax way. I guess that's due to low refresh rates, so for a very brief moment there's a disconnect between the clock's physical position…

I totally know that digital clock effect you're talking about. It's caused by something else though. It's actually a physiological hallucination due to high power ultrasonic waves coming out of those types of clocks. Rather than smoothly turning a small crank at 60rpm like in an analog clock, the clockwork gnomes inside digital clocks have to frantically push and pull a lever at 32.768KHz, and their stiff little poin…

Post by jheriko » Sat, Jul 17, 2021, 1:12 PM UTC

Post by lm28469 » Sat, Jul 17, 2021, 1:34 PM UTC

lenkite wrote: post #171

sgtnoodle wrote: post #133

Earlier quoted context omitted.

I dunno, but when I look at glowing blue signs and blue Christmas lights at night, they look significantly more fuzzy than other color lights.

Does this only affect people with Blue eyes ? As someone with utterly black eyes, I don't have a problem looking at glowing blue signs and don't find them fuzzy either.

Post by phkahler » Sat, Jul 17, 2021, 1:44 PM UTC

tobr wrote: post #97

The author is wrong, that experiment doesn’t show anything about focusing. The blue channel in RGB is simply much less bright than the green, which means it has much less contrast, which means that manipulating it in various ways has less of a noticeable effect on the image as a whole. This happens to be true for blurring it, but also adjusting the contrast, inverting it, pixelating it, offsetting it, averaging it co…

Post by [deleted] » Sat, Jul 17, 2021, 2:05 PM UTC

lmohseni wrote: post #126

WhompingWindows wrote: post #62

Earlier quoted context omitted.

Consider the time period and the historical context. It's modern times, Cold War is occurring, and WW1 and WW2 left scars across Western Europe and caused major changes in the art world, including being a boon to abstraction and fragmenting styles into many eclectic directions. Chemistry has DRASTICALLY altered painting from the Renaissance to the World War era. New pigments have been constantly highlighted and displ…

There’s a really great short story by Alistair Reynolds about an artist that’s obsessed with a certain Zima blue (name of the story) which is essentially an extended meditation on the above, I think you might like it. :)