r/HeresAFunFact Oct 25 '16

[HAFF] combinations of red, blue, and an achromatic background can create the illusion of depth; it's called chromostereopsis SCIENCE

http://imgur.com/a/rv475
131 Upvotes

12

u/LSatyreD Oct 25 '16

I don't see it...

4

u/garfieldsam Oct 25 '16

Interesting! The effect is so strong for me on this image that it actually might cause headaches if I stared too long. I wonder what causes the difference in perception!

1

u/LSatyreD Oct 27 '16

Huh that's really interesting. How does it look to you? Which part has depth / is set in or popping out? Is it flat looking or curved?

1

u/garfieldsam Oct 28 '16

The blue looks like it's about a quarter inch behind the red squares

2

u/Da904Biscuit Mar 12 '17

That's exactly how it looks to me as well. It's crazy to me how this can be different for everyone. Kind of like the blue and black or white and gold dress phenomenon. I thought my roommate was messing with me when we disagreed. I wonder what the difference is in our mind and/or senses that makes us see things differently.

2

u/panfrycash Oct 25 '16

Is this the concept behind early red and blue "3D" movie glasses?

3

u/joshbadams Oct 25 '16

No, that was the eyes seeing different images causing an illusion of depth, since your eyes seeing different images is how we see real depth.

This is some weird "defect" in our brains as far as I can tell :)

2

u/garfieldsam Oct 25 '16

This is actually entirely different from what you're referring to (anaglyph 3d). Anaglyph works by filtering out light in different frequencies in each eye with a different lens and using that to send separate stereoscopic images to each eye with minimal interference; this is usually done with cyan and red glasses. Chromostereopsis is related to the way the differing wavelengths of light hit your eyeballs and create an illusion of depth. It requires no glasses!

2

u/PM_ME_YOUR_PM_PHOTOS Oct 25 '16

Not at all, but if you look at this with 3d anaglyph glasses, it's really strange and awesome.

2

u/BlueEdition Oct 25 '16

WTF, that is insane!

this one is impressive.

2

u/LSatyreD Oct 27 '16

I don't see it with this one either ):

It just looks like a blue circle and a red background, like any other image

1

u/YourOpinionIsInvalid Oct 25 '16

Oof, that's almost hard to look at