They are dichromats—with red and blue receptors—as opposed to most humans, who are trichromats with red, green, and blue receptors. So in terms of colors, they can distinguish roughly the same colors as a human looking through a magenta filter.
Can cats see color?
Submitted 4 months ago by cheese_greater@lemmy.world to [deleted]
Comments
AbouBenAdhem@lemmy.world 4 months ago
cheese_greater@lemmy.world 4 months ago
Almost rose-glasses
AbouBenAdhem@lemmy.world 4 months ago
Except that a rose/red filter would pass wavelengths centered around red, while a magenta filter would block wavelengths centered around green. So a magenta filter would let in proportionally more blue.
fxomt@lemm.ee 4 months ago
Cats are near sighted but can see much better in the dark compared to us. They also have a wider field of view.
They see color similiar to how a person with protanopia would. At least, that is what I understood from the wiki.
gravitas_deficiency@sh.itjust.works 4 months ago
It’s like looking through a catleidascope
fool@discuss.tchncs.de 4 months ago
Nikls94@lemmy.world 4 months ago
Funny thing: cats (and dogs) can see a bit of the ultraviolet spectrum. They see dandelion as pink.
Strayce@lemmy.sdf.org 4 months ago
They do, but differently than us. They trade some sharpness and colour perception for field of view, low light vision, and speed / motion tracking. 30fps to a cat would look like a series of stills. Source via Archive.org
ocean@lemmy.selfhostcat.com 4 months ago
This seems like an easily searchable question
actionjbone@sh.itjust.works 4 months ago
you’re an easily searchable question.
ocean@lemmy.selfhostcat.com 4 months ago
Crap!
corsicanguppy@lemmy.ca 4 months ago
If you’ve seen the right cheesy porn, there’s a yo-momma joke in there somewhere.
sp3tr4l@lemmy.zip 4 months ago
Firstly, cats have a higher proportion of rods to cones when compared to human eyes, as well as a structure behind the retina called a tapetum lucidum, which reflects light back to their photoreceptors.
(The tapetum lucidum is also what causes cats eyes to appear to shine or glow in low light conditions)
This means they are better able to see differences between dark and light than we are, and in general are estimated to be able to see in brightness conditions about 6 times dimmer than what humans can see in.
But the flipside to this is that, in general, they see less contrast between colors than we do.
…
Secondly, cats are are dichromatic, they have very low sensitivity to what we call red, so their perception or color is probably something akin to protonanopia in humans, though not as extreme.
Image
Cats basically percieve the world in what we would call muted tones of blues, yellows, greens and grays.
Image
…
Thirdly, cats visual range extends beyond the human visual range into UV. They can see all the way down to 320nm, human vision typically stops at about 400nm.
This is why cats are often transfixed, looking at things that… don’t seem to be there. What they’re looking at does exist, it’s just that we can’t see it.
This also means that they can see distinct color patterns in what we would basically just perceive as blue.
…
Finally, they also have a 200 degree field of view, compared to a human’s 180.
MissJinx@lemmy.world 4 months ago
Dude…
also
Fuck this. The ghosts are not there
sp3tr4l@lemmy.zip 4 months ago
Hahah!
Its usually things like dustmotes illuminated in a light band we can’t see, or reflections off of metal or refractions through glass that we just see as maybe a bright spot, but they may see as … basically psychadelic colors.
If you ever have a crystal or window where light shines through at the right angle , such that it makes a spectrum along the wall or floor…
… basically they see some kind of ‘super’ blue that extends beyond where our vision cuts off. The prism’s rainbow pattern keeps going, we just can’t see it.
Also, blacklights are probably very weird for them.
sxan@midwest.social 4 months ago
Greeblings. Not ghosts, greeblings.
There are a couple of posts on Red-dit and Thre-eads, but I won’t link to those; here’s another description, although it’s wrong. It attributes Greebles to Red-dit, but the term predates not only that site, but the web entirely. I first heard about greeblings in 1983.
canitendtherabbits@lemmy.world 4 months ago
Nice!!! Do dogs next!
sp3tr4l@lemmy.zip 4 months ago
Only if you give me a treat.
Towerofpain11@lemmy.world 4 months ago
Thank you for taking the time to write this. That was an awesome read!
sp3tr4l@lemmy.zip 4 months ago
=D
PrincessLeiasCat@sh.itjust.works 4 months ago
That was fascinating as fuck