The Craziest Optical Illusion You'll See All Day -- Maybe Year

Submitted by: holygod 1 week ago in Weird
This may be the best one of these I've ever seen.

There are 17 comments:
Male 213
Have people submitted 3d images on IAB?
This is image is NSFW content, but safe for work, because noone will see it but you...
Did you see it? 
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Male 2,888
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I'm confused and disorientated!
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Male 9,090
kalron27 what does that have to do with bad boob jobs?
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Male 2,888
holygod HAHAHA, yep, crossed\confused eyes look like boobs :)  And boobs can cause crossed\confused eyes...and disorientate me on occasion...
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Male 3,767
you can see on the horizontal bars that the target patterns along it are uniform, but the vertical lines are nota and their center gets disrupted with 2 of the same.  The black and white targets play the biggest role in this, causing your eye to fill in the blank when you're not staring at it.  But the pattern in the lines plays a supporting role based on how they're angled away from its center line, to increase the illusion.
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Female 3,904
looks like they're... WOBBLING! :D
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Male 8,274
Very cool. 
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Male 466
Very effective at boggling the eyes.
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Male 4,597
This one is crazy. I lined up a blank piece of paper so the edge is 90 degrees, making the first line straight, and the ones I can see through the paper are still at an angle.
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Male 1,047
I don't always see the described effect in these things, but I do in this one.  Definitely one of the cooler ones I have seen as well.
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Male 306
The patterns are evil, since they are not symmetrical. If you only look at 2-3 columns, you won't have that effect but after 4-5 columns it does. The brain considers that the pattern is symmetrical and straight.
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Male 3,982
m3dm3d Great comment. I'm pretty sure you've managed to identify the secret that's making this illusion work.

The diamond shapes at the intersection of the lines are skewed and between the diamond shapes are lozenges. The brain sees the lozenges in an even line with the skewed diamonds and sees both diamonds and lozenges in the center of the lines. The brain concludes that the only way this is possible is if the lines are skewed in the same way that the diamonds are. Since the right-angle intersections of the lines are obscured by the checkerboards, there's no conflicting data to give the brain pause, so it essentially says, "Yup. Those blue lines have to be angling in the same way the diamonds are."

As you've pointed out, however, the patterns are evil. The ends of the lozenges are asymmetrical and they're connected by thin lines that are also asymmetrical. In processing this image, the brain overlooks this trickery and assumes the shapes are honest, so to speak. Below, I've put red boxes around the asymmetrical trickery that makes the illusion possible.

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2,735
There, horizontal bars are now straight. Take that stupid brain! Think you're smarter than me! 

 
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Male 3,982
What sorcery is this? I have actually held a ruler up against the horizontal lines on the monitor--and yet my brain STILL won't accept that they are parallel and level. Oddly enough, if I really squint my eyes and look through the haze of the eyelashes, the lines become horizontal. Weird!
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Male 306
squrlz4ever same if you look at your screen from the edge
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