March 26, 2007

Don't trust your eyes!

In the pic below you can see two faces.A normal face on the right and a wicked one on the left.Now get up from your chair and walk some 8 steps back and see the magic.The two faces interchange their positions.





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56 responses:

Anonymous said...

flabergasted!! this ones simple marvellous

Earl Grey said...

This is so wierd

Anonymous said...

that is truely amazing!!

i still cant work out how its done.

Anonymous said...

hehe

wicked!

Anonymous said...

hehe

wicked!

Jonathan said...

It works if you squint, too...

Ovais said...

We use different set of eye muscles to concentrate when we are closer and when ware far. I believe this picture enhances minor distortion with in the cornea normally not noticeable.

Anonymous said...

wow that was hard to make... lol

http://bv-design.com/lol.jpg

Anonymous said...

The two images have a background (less fuzzy) image of what we see when we're close, and the opposite image above it, but so blurry that we can't identify it when we're close.

When we step back, the blurry image becomes "clear" of sorts and, by being in the foreground, obscures the background pic.

Anonymous said...

Seems to me like the blurry bits on the photo come more into focus as you move farther away. Kind of like when you zoom in real close on a picture in photoshop; you can't really see what it is when it's all pixels. When you zoom out, the image begins to gain definition. Yeah, it sounds like I pulled that out of a dark recess, but I'm sticking with it!

Anonymous said...

Theres two different parts of the brain for handling images, the sharp one and the fuzzy one.
Basically once you lose a certain amount of detail in a picture (due to distance or squinting) then the fuzzy part kicks in.
The images are designed so that the sharp and fuzzy one see different pictures

scape said...

this is how it works:

each face is composited from two images - one blurred and one with details. from close distance, eyes/brain perceives image constructed from facial details, from farther away you don't see these details but just "higher level features" (lightning/shadowing, shape of head...) - this is the blurred image. if you look closely you can clearly see than in left image there is blurred version of right image and vice versa.

Anonymous said...

I think it's two images on top of each other. There is a solid image and a blurred one. When you step back i think your eye adjust to see the blurred image more clearly, and when you get closer they adjust again to see the solid image with a little haze.

I don't know how else it works besides that explanation >.<

Anonymous said...

good article in newscientist about this a few weeks ago.

http://www.newscientist.com/channel/being-human/mg19325971.600-hybrid-images-now-you-see-them.html

Doctor Creek said...

when your looking at it from a distance the one on the right looks kind of like tim allen.

Anonymous said...

Not that I'm trying to be rigid or anything, but the site explicitly asks that nobody repost them without permission. Did you ask them?

Anonymous said...

When we're close to an image our lens contracts so that it can focus the light on our cones, and if the image is "out of focus" when we're close it can come into focus if we move further away from the image. I also suspect that the dominant eye effect (rejecting contradictory data in the brain from the less dominant eye) in is play here.

Anonymous said...

this is how large hdtvs work. they dont look great up close, they are meant to see from afar

Anonymous said...

A sad fact of the internet. This picture actually COMES FROM the article that explains the phenomenon. Then people post the pictures around and then it gets dugg by people looking for an explanation.

Sad

Zantetsuken said...

The image works by superimposing two images, where they both have their frequencies modulated high and low, this creates one image to have be sharper and responsible for straight lines, the other one is modulated to be blurry, the brain percieves the images differently from different distances.

Anonymous said...

This will only happen to half the people taking the test depending on which eye your dominant eye is.

Anonymous said...

Mooi van ver, maar ver van mooi!

Anonymous said...

Real simple. At close distances your eyes are focused for smaller spatial wavelengths (fine detail). At further distances, your eyes focus for larger spatial frequencies (coarse detail).

So, close in, you see fine details and average out larger data. At further distances, your eyes average out the fine details and enhance the coarse data.

Try this: try look through the image by focusing on something in the background around 2 meters back.

Anonymous said...

Evil is difficult to see up close, so you have to take a step back in order to realize it.

Anonymous said...

its like tazo's u know the bugs bunny shit with 2 images within the 1 so when u move to a different angle or position the image alters.

Andrew said...

Someone reads New Scientist!

It's done by taking two images and running a high and low pass filter over each and then you combine the high and low data into one image.

Anonymous said...

HAHAHAHAHA,

we designed an image filter yesterday in class, but ours used the Monroe Einstein thing... It just has a two image filter with one at low frequency and one at high.

Decoye Gheist said...

Ok it is explained here Geek picture Explained!!!

Anonymous said...

This is done with high and low pass filter over two photos and then you combining the high data from one pic and low data from the other into one picture. Your eyes perceives the one from details close up and the other object from light and shadows when further away.

I saw this cool article in newscientist

Anonymous said...

One pic is taken with a high pass filter (emphasizes sharp lines, etc), the other is taken with a low pass filter (de-emphasizes sharp lines, etc). One sees the hpf pic when up close, and the lpf one when viewing from a distance. Neat effect.

sqeez said...

whoa, wtf?

Best CD Rates said...

Wow! what a picture!

Simon said...

Amazing!

Anonymous said...

Simple, All in the shadows and distance and if you are close you see all the details.

Anonymous said...

You can see the transition without walking further back. Simply look at the images with your eyes slightly crossed and the images will switch places.

frucomerci said...

I would like to know how many people have walked 8 steps back from his chair! Cool!

Cristian Eslava said...

It´s called Hybrid Images.

More information:

http://ceslava.com/blog/imagenes-hibridas-lejos-cerca/

Un saludo,
Cristian Eslava

Anonymous said...

dosent work if your near sighted and have to wear glasses i had o take mine off for it to work.

Anonymous said...

The most terrifying thing about these pictures is probably the horrible crashing sounds they make as they speed through the forest. This noise is so loud it echoes through the trees and seems to come from all directions at once.

Anonymous said...

you are all wrong. just open the image in photoshop or paintshoppro and resize it to 10%.

tada! the images have reversed.

why? because photoshop has a dominant eye? bullcrap!

Jim said...

Also seems to work if you remove your glasses/contacts. Very cool.

subcorpus said...

i still dont get it ...
this so amazingly kewl ...

Lim CS said...

This is so cool.

Anonymous said...

You get the same effect (pleasant and ferocious images switch places) by squinting your eyes or copying the image to paint shop or photoshop and reducing its size (zooming out). The easiest way to see what's happening and analyse it is by pasting it into a graphics program and increasing and decreasing its size

What makes a face look ferocious (left image)? In this case it's an open mouth with teeth showing, eyes that are squinting nearly closed and eyebrows that are slanted down towards the bridge of the nose. A face with those characteristics is one that is scowling and snarling at you in readiness to attack and possibly damage or kill you. Our animal instinct is to fear such a face and regard it as ferocious

What makes a face pleasant (right image)? In this case it's a closed, symmetrical mouth (no dangerous teeth showing) with only the full lips showing (no thinned lips means the mouth is not tightened in anger), round open eyes (not scowling in anger) and horizontal eyebrows

If you want the right image to appear ferocious and left image to appear pleasant you need to swap those three facial items

How is that done? Let’s take the right image.

When close up the bottom lip has a light patch (glaze) in the middle and there is dark shadow under the bottom lip and (to a lesser degree) above the top lip. As you move away from the image (or make it smaller) you lose the detail of the lips. All you can make out is the light patch on the bottom lip and the two shadows. Your brain reinterprets (it knows it's a face) and now sees the light patch as bared teeth in the middle of an open mouth with the previous shadows as the lips As a result it's now what you know to be ferocious. Same with the eyebrows. When close up there are shadows on the right of the temple and on the eye lids (make up). As you move away you lose the detail and the brain reinterprets what's left (i.e. what it can still see) as an eyebrow, which is angled down towards the bridge of the nose, as if someone is snarling. Finally as you move away you lose the detail of the eye and the brain reinterprets them as flat squinting (unevenly) eyes.

The left image does the same thing as you move away, but in reverse (e.g. the open mouth with shadows around it becomes a closed mouth when you're too far away to see the teeth and the shadows become (full) lips)

The images are constructed so that the detail you see when close up are the those three characteristics of a face that make it ferocious. As you move away that detail is lost (your eyes can't resolve detail that small any more) and the larger detail (e.g. the shadows) becomes the smaller detail and the facial characteristics that make up a pleasant face. The same (but opposite) is done for the other face

Anonymous said...

haha I don't even need to step back, just need to take off my glasses

Decoye Gheist said...

Even more Pictures found here
I have found even more pictures concerning the hybrid image topic...

Thomas said...

see this http://photo2text.com/

Anonymous said...

Here's my guess as to what's happening.

Human eyes have a blind spot on the retina. This is where the optic nerve connects into the retina. Because the nerve density is so high, there's no room for light detectors and we are effectively blind at these spots. The spots or off centre in opposite directions in each eye so they don't overlap. The brain has been designed to fill in the visual "hole" in one eye's image with information from the visual field of the other eye (and vice versa).

When you move a certain distance away from the image, the left image aligns with the right blind spot and the right image aligns with the left blind spot. The brain fills in the visual holes with the only information it has. This effectively transposes the images and makes them seem to reverse. The brain does this because the images have the same overall structure, so it's just "filling in blanks", literally.

There are many classical optical illusions that demonstrate this principle where you can make a red spot dissapear from a striped black-and-white background with paired images.

Very entertaining puzzle!

Anonymous said...

I walked back from the screen and they were both blurred. Maybe I need newer contacts. Either way I know I'm having nightmares tonight from the left face, boo hoo :(

creditlucky said...

I think the magic is in the shadows play: accurate lines are best visible closely, and shadowy parts are for distance viewing. I'll keeep it in mind when doing my decoration works.

Robert Goretsky said...

Crazy! Perception is not always reality...

Robert Goretsky
Hoboken, NJ

Michael said...

Thanks for your nice post!

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Louis Vuitton Replica said...

LOL this is very interesting. I have never seen anything like it. :)

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Affordable Dental Teeth Whitening said...

omg! ive been with this like 7 minutes im like whattt?? how great is that!

I love this stuff!

-Ben