I’m slightly colour blind and have an app on my phone that can simulate my deficiency. I take a photo and it shows the views side by side. I adjust it til they look the same and then show my wife (with her stupid perfect colour vision) and she can describe the difference in what I’m seeing.
On rare occasions she says what I’m seeing looks better, so it’s not all bad
Could you show us what it looks like ?
Top and bottom look the same to me, I am protan colour blind, red deficient. I see some red, but not all
Wow thank you for the follow up :) Very interesting
Link? I can’t see shit either
I use this one https://play.google.com/store/apps/details?id=asada0.android.cvsimulator but a search for colour blind on play yields a few
There are humans with a fourth color receptor in their eyes who may have a wider color range than your average person. Women only though, sorry boys.
What blind animals see:
Shouldn’t it be wider?
It is.
Mantis shrimps have the most complex eyes in the animal kingdom and have the most complex front-end for any visual system ever discovered. Compared with the three types of photoreceptor cell that humans possess in their eyes, the eyes of a mantis shrimp have between 12 and 16 types of photoreceptor cells. Furthermore, some of these stomatopods can tune the sensitivity of their long-wavelength colour vision to adapt to their environment. (Wiki)
The wavelength of Magenta doesn’t actually exist. It’s our red and blue photoreceptors activating without the green ones. It blows my mind how many non-existent colors mantis shrimp can see.
TIL this was refuted. Instead it was determined that shrimps lack the brainpower to properly process which us why they have more photoreceptor cells. They actually see less color overall.
While they do have many kinds of photoreceptors, and can therefore see a large range of colours, they have very limited colour resolution: https://www.nature.com/articles/nature.2014.14578
As far as I understand it, they cannot blend the different light components nearly as well as humans do (e.g. seeing red and green at the same time and deduce that is yellow).
So, I came back to this thread after seeing another on mantis shrimp colour drama further down: apparently their extra photoreceptor variety doesn’t (might not?) increase their colour vision range because their brains can’t merge the signals like ours do.