optical illusion

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WildCat
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Re: optical illusion

Post by WildCat »

Anaxagoras wrote:
WildCat wrote:Actually now I don't think they're photoshopped, it is an illusion.
Even if there is some photoshop going on there, what I was seeing was totally surreal. If you follow the instructions and watch the center cross the faces become like Salvador Dali paintings or weird cartoon caricatures.

Our brains (or at least my brain) just doesn't have quite enough time to process each face before it changes to the next one, which creates a weird effect where the faces don't look real.
I was making screen caps of the images I thought were photoshopped, but the screen caps loooked normal.

It is a weird phenomena.
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Re: optical illusion

Post by Rob Lister »

[video][/video]
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Witness
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Re: optical illusion

Post by Witness »

Nyarlathotep wrote:It's called the Flashed Face Distortion Effect and from the sounds of it, it happens because the brain is trying to quickly figure the difference between one face and the next so ends up exagerating each face.
As suggested on Nyarl's link, the effect persists even if you hide one of the two faces (but still center your gaze on the cross). One of the comments was "overclocking the visual cortex"! :D
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Anaxagoras
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Re: optical illusion

Post by Anaxagoras »

How many black dots do you count?

Image
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Re: optical illusion

Post by Rob Lister »

12.
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Anaxagoras
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Re: optical illusion

Post by Anaxagoras »

Yep. Kinda confusing though because when you look at one the others seem to disappear.
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Re: optical illusion

Post by asthmatic camel »

Image
Shit happens. The older you get, the more often shit happens. So you have to try not to give a shit even when you do. Because, if you give too many shits, you've created your own shit creek and there's no way out other than swimming through the shit. Oh, and fuck.
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Re: optical illusion

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I did her
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Re: optical illusion

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Did she show pleasant enthusiasm as you boinked her?
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Re: optical illusion

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Re: optical illusion

Post by Bruce »

Best new one I've seen in a long time.
Image
Can be spinning left or right.

Once your brain locks onto one direction, it's really hard to switch to the other. Try closing your left eye and right eye back and forth. You'll eventually see both.
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Re: optical illusion

Post by robinson »

Wow, just wow
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Re: optical illusion

Post by Anaxagoras »

Image


A fool thinks himself to be wise, but a wise man knows himself to be a fool.
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gnome
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Re: optical illusion

Post by gnome »

I wonder if a person would look odd walking past that area, because our brain is using the floor for visual cues on relative size and distance.
"If fighting is sure to result in victory, then you must fight! Sun Tzu said that, and I'd say he knows a little bit more about fighting than you do, pal, because he invented it, and then he perfected it so that no living man could best him in the ring of honor. Then, he used his fight money to buy two of every animal on earth, and then he herded them onto a boat, and then he beat the crap out of every single one. And from that day forward any time a bunch of animals are together in one place it's called a zoo! (Beat) Unless it's a farm!"
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Anaxagoras
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Re: optical illusion

Post by Anaxagoras »

OK, technically not an illusion but interesting

Image
gnome wrote:I wonder if a person would look odd walking past that area, because our brain is using the floor for visual cues on relative size and distance.
It might, but I'm not sure if that's what it was designed for.

This one however is:
Last edited by Anaxagoras on Thu Mar 29, 2018 12:20 pm, edited 1 time in total.
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ed
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Re: optical illusion

Post by ed »

Anaxagoras wrote:OK, technically not an illusion but interesting

Image
That was a fad sorta thing back in the 17th 18th century. The artist would paint the image using a mirror.
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Re: optical illusion

Post by sparks »

Are you trying to tell us that dried corn husks turn into frogs?
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Witness
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Re: optical illusion

Post by Witness »

Hide the middle part:

Image
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ceptimus
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Re: optical illusion

Post by ceptimus »

There are only three different colours in this image.

Image
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Re: optical illusion

Post by ceptimus »

Most people see the left arm of the Y looking more green and the right arm looking more blue.

How about this one? This also only has three colours, not counting the single black pixel right at the centre.

Image

The 'Y' version again, seeing as how we're on a new page

Image
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Re: optical illusion

Post by Witness »

ceptimus wrote: Mon Oct 15, 2018 2:43 pm...
Are you still green, or turning blue? Happy birthday (if I'm not mistaken)!
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Re: optical illusion

Post by gnome »

It's no surprise... Band colors together and it will seem like a sort of blend. In this case two different blends.

RGB screens had only three colors too.
"If fighting is sure to result in victory, then you must fight! Sun Tzu said that, and I'd say he knows a little bit more about fighting than you do, pal, because he invented it, and then he perfected it so that no living man could best him in the ring of honor. Then, he used his fight money to buy two of every animal on earth, and then he herded them onto a boat, and then he beat the crap out of every single one. And from that day forward any time a bunch of animals are together in one place it's called a zoo! (Beat) Unless it's a farm!"
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ceptimus
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Re: optical illusion

Post by ceptimus »

gnome wrote: Tue Oct 23, 2018 12:55 pm RGB screens had only three colors too.
Not sure what you mean by RBG screens. If you're referring to the usual sorts of displays used on TVs and computer monitors, then yes, there are usually only three types of phosphor - but usually the intensity of each red, green, or blue phosphor dot can be specified with 5, 6, 8, or more bits of resolution - so these displays can show tens of thousands, up to millions of different colors.

This is different to the optical illusions that really do use only three colors over large areas (many pixels) - and with no variation of intensity of those colors. You could reproduce the same images on paper using three different paints, and they would be just as effective.

The reason these particular illusions work is that the color resolution of our eyes is much worse than the intensity resolution. Our brains form a mental image that attempts to reconstruct high resolution color using just brightness data, with some rough inaccurate color data present: it shouldn't really surprise us that sometimes they're fooled.
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Re: optical illusion

Post by robinson »

ceptimus wrote: Wed Oct 24, 2018 4:29 pm
gnome wrote: Tue Oct 23, 2018 12:55 pm RGB screens had only three colors too.
Not sure what you mean by RBG screens. If you're referring to the usual sorts of displays used on TVs and computer monitors, then yes, there are usually only three types of phosphor - but usually the intensity of each red, green, or blue phosphor dot can be specified with 5, 6, 8, or more bits of resolution - so these displays can show tens of thousands, up to millions of different colors.

This is different to the optical illusions that really do use only three colors over large areas (many pixels)
Actually it's not that different. When you see a "white" screen on your computer, it actually looks like this.

Image

or this

Image

In fact everything on the screen we see is actually just three colors. Yes, the intensity of the colors changes to allow the illusion of many many colors, but you are always seeing three colors for each pixel, which is a grand illusion.
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Re: optical illusion

Post by Witness »

What I see is not color mixing, Impressionist (or computer screen) style, but color contrast. Analogous to the same grey appearing lighter or darker when next to black or white.
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Re: optical illusion

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Re: optical illusion

Post by Anaxagoras »

Duck or Wabbit?

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Re: optical illusion

Post by robinson »

Image
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Re: optical illusion

Post by ceptimus »

Image
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Re: optical illusion

Post by gnome »

*clicks here to turn in a sicko*
"If fighting is sure to result in victory, then you must fight! Sun Tzu said that, and I'd say he knows a little bit more about fighting than you do, pal, because he invented it, and then he perfected it so that no living man could best him in the ring of honor. Then, he used his fight money to buy two of every animal on earth, and then he herded them onto a boat, and then he beat the crap out of every single one. And from that day forward any time a bunch of animals are together in one place it's called a zoo! (Beat) Unless it's a farm!"
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Re: optical illusion

Post by sparks »

Stare at the cross mark and see monsters, and all the plates are right side up. Robinson and Ceptimacal is just having some fun.
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ceptimus
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Re: optical illusion

Post by ceptimus »

Concentrate on the top right one and imagine the light source is to your left. You might be able to flip the plates upsidedown: I found I could, after a while.
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Re: optical illusion

Post by robinson »

Image
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Re: optical illusion

Post by robinson »

Abdul Alhazred wrote: Fri Mar 08, 2019 5:56 pm 1) OK robinson, what am I supposed to see? :?
Bruce wrote: Tue Jan 22, 2013 2:50 am Image
The more you watch, the more freaky and distorted the faces appear.

Except for Tom Cruise.
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Re: optical illusion

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Image

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Re: optical illusion

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Yesterday I was driving and a jet had just taken off from Hopkins airport. I was driving east at 35 mph and the jet was flying west. The horizontal speed of the jet seemed to be zero relative to my own, so I was able to perceive the vertical motion of the jet. Looked like it was just levitating upward. Really neat effect.
The flash of light you saw in the sky was not a UFO. Swamp gas from a weather balloon was trapped in a thermal pocket and reflected the light from Venus.
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Re: optical illusion

Post by Witness »

Image

Fix the central point, then move farther/nearer.
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Re: optical illusion

Post by Pyrrho »

That is a 2D Rick Roll
The flash of light you saw in the sky was not a UFO. Swamp gas from a weather balloon was trapped in a thermal pocket and reflected the light from Venus.
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Re: optical illusion

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The flash of light you saw in the sky was not a UFO. Swamp gas from a weather balloon was trapped in a thermal pocket and reflected the light from Venus.
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Re: optical illusion

Post by shuize »

Bruce wrote: Fri Feb 09, 2018 4:34 am Best new one I've seen in a long time.
Image
Can be spinning left or right.

Once your brain locks onto one direction, it's really hard to switch to the other. Try closing your left eye and right eye back and forth. You'll eventually see both.

The one turning counter clockwise has a better rack.