Here’s another version
The poster in the image is the original source for the coke can op posted btw
Red is complimentary to cyan.
If the cyan were switched with yellow, the can would appear blue.
Also, it’s not our brains creating the red, it’s our eyes. They get exhausted of seeing the cyan and replace it with red.
Can you do that and post it?
Grab your pitchforks gang. OP is selling us snake oil posts!!!
Now send this version (with the same unedited caption) to everyone.
Strange, I see the OP picture as red, but this one as black & white.
so it would appear red even if it was another can?
It’s curious that the thumbnail actually has red values for those pixels, making me think they’re cheating a bit with jpeg compression effects.
Huh, it shows up as black to me.
It’s not marketing, just colour theory. The same idea has been used by painters for ages.
It is when you use cova cola instead of, lolipop, santa, flag, flower or some other red object.
Nah, it’s still colour theory. Now it’s yellow, magic.
Jokes on you I zoomed in and out on the original and now the can appears white no matter what.
Its the second Coca Cola TM post ive seen since I joined lemmy.
The other one was yesterday.
Still red with no logo.
White light has red in it. Cyan does not. We fatigue blue and green cones everywhere but the white can, and we only stimulate the red cones on the white can. The result is it looks red.
Thank you. I thought this was going to be like the dress.
The white and gold dress, you mean?
Exactly
Your mind compensates for the teal which makes the white look red.
Oh weird, I assume this is just because the white is relatively red compared to the cyan, right? As in if you took any image and coloured it in the same way then it would also look red.
Yeah, there seems to be a lot more going on here than just marketing. If you mask the logo, the red still works. I believe it has to do with the combinations of white/black, white/cyan, black/cyan and the relative size of the blocks to produce a red hue through complimentary color persistence or whatever it’s called.
Hand doesn’t look red tho
Brain uses expectations to decide what to fill perception with. you don’t expect hands to be the same red tone as cola cans.
Nonsense. My phone screen uses red, green, and blue to make up each pixel. The white pixels have their red component all the way at full brightness. Therefore there is a lot of red in the picture.
You could also see this by opening up the image and looking at the red channel which would not be completely black.
I just tried printing this image but it says my magenta is too low 🤔
Texts on computers is made this way, so use a magnifying glass on black white text in a word document (for example) and you’ll see lots of colors. zoom in using the computer and you will still just see black/white.
It’s actually all just white light at different wavelengths, which tricks your brain into seeing different “colours”.
White light is the combination of all those wavelengths. It is only the combination that makes it “white” in exactly the same way that a smaller range of wavelengths are “red” or “blue”.
Making your brain do exactly what it’s supposed to do is a weird way is “tricking” it.
I’m colorblind this trick doesn’t work with me
Jokes on you, I’m moderately red green colorblind so I wouldn’t realize it if there was red present
Do you see the Coke can as a different color from the background?
I’m red green colorblind as well. I just see the background as white or a very light shade of grey. Someone else has made a post with a yellow can and in that one I see the background as yellow (which is basically the same as green to me, I have very little r in my rgb), especially the right side of the can.
Same here. Those colour fanatics are fantasising again I suppose.
When its small thumbnail I can see it but when I look at the full size image I appear to be able to turn the effect off at will.
If I zoom in just a bit it’s white, turns instantly red at some point of zooming out.
The tipping point is wild
This is one of those actually cool optical illusions
Here is an 8 minute video that goes into more depth on how this works. https://www.youtube.com/watch?v=0FjjJha7HMI
Weird but if I focus my mind so to say it appears white but then if I relax then again red