Frequencies based optical illusion

[sPECtre]

Received this by e-mail (thanks, dad!)
I found it really interesting, and will share it here. It seems to me that the illusion is frequencies based.
Look at the image at normal distance from the monitor (no it is not a gif that will jump in your face) the angry face is on the left side.

Now, get away from the monitor and look at it from several dozen feet away... the angry face is now on the right side...

Let's tweak the image away. I'd like to give credit, but did not receive any source...

[Tempus]

That is profoundly messed up. You get the same effect from the image by letting your eyes blurr or squinting at it. The "angry" shadows seem to be overlayed in the placid face and vice-versa so that once the details are blurred by distance or squinting you see the suggestion of the other expression in its' place. It's a really sweet illusion, thank's for sharing.

[lokki]

it has more to do with lighting cues and where we expect detail to fall based on experience.

Ever notice a person at a distance that appears attractive, until you get up close? Same kinda thing... the brain wants to interpret at the highest resolution it can, so makes a decision based on what's available. In this case, fine detail gets lost, so gross features take over.

In any case, it's a cool illusion. I have some ideas for new pictures around my office... :lol:

[jjmac]

wow that's awesome! It would be cool to develop a technique that could produce this result...

[lasa]

I agree...
Ever notice a person while you're drinking appears attractive, until you wake-up? Same kinda thing... the sloshed brain wants to interpret at the highest resolution it can, which is dismal at best, so makes a decision based on what's available. Then the alcohol induced looks gets lost, and the gross features take over..

Lasa

[Tempus]

it has more to do with lighting cues and where we expect detail to fall based on experience.


I guess that's what I meant by seeing the "suggestion" of the other expression. Maybe it's not a popularized term. :|

[Noyava]

I agree...
Ever notice a person while you're drinking appears attractive, until you wake-up? Same kinda thing... the sloshed brain wants to interpret at the highest resolution it can, which is dismal at best, so makes a decision based on what's available. Then the alcohol induced looks gets lost, and the gross features take over..

Lasa

That does beg the question of whether the "distance distortion factor," as mentioned by Lokki, and "beer goggles", as Lasa describes, are related. I'm not so sure incomplete information is the same as bad assesment of the available information... but if the results are the same does it really matter? :6