Optical IllusionsOptical Illusion Gallery #1Optical Illusion Gallery #2 Perfect Squares Eye TrickSame Rectangles Optical Illusion Joke Scary Optical Illusion Ambiguous Cube ambiguous Bird or Boat Cafe Wall Tiles Clashing Gradients Clinton Gore Dalmation Dots Dimples & Bumps Donkey Seal Dragon Face How many faces? Impossible Block Impossible Box Impossible Shape Liar Liar Black Shapes Longer LineMona Lisa Nutty Nut Ouchi Illusion Giant Man Say the Colors Tricky Gray Boxes Green Shades Red Shades Shelves Eye Trick Distorted Checkerboard Impossible Art Box Wavy Lines Twisting and Turning Spiral Optical Illusion for Kids Which Line Connects Crazy Window Image Young or Old? How Many Cubes? Artist Chalk Drawing #1 Artist Chalk Drawing #2 Artist Chalk Drawing #3 Artist Chalk Drawing #4 Artist Chalk Drawing #5 Artist Chalk Drawing #6 Desktop WallpaperOptical Illusion Pictures #3 Crazy Illusions More eye tricks Sidewalk Chalk Art Funny Pictures AmbigramsOptical Illusion ArtistsFriends Sites & Links

Take your time to enjoy all the optical illusions!
More Eye Tricks
Missing Puzzle Piece
Freaky Spiral

About Us
Contact Us

Magic Trick Videos
Card Tricks
Kansas Magician
Brain Teasers

Search:
Cool Optical Illusions

Privacy Policy

 

Optical Illusions Art Collection #2


Stare; look away.
Sponsored links
Inverted Flag Illusion

Tricky Gray Boxes


optical illusion experiment

This is a demonstration of how the exact same shade of gray will look different depending on what color the background is. Another slightly less apparant effect of this picture is that the big gray box in the upper left looks darker than the bix gray box to the upper right, because it is closer to the black square in the lower left. Use your hand to cover up parts of this optical illusion experiment and you'll notice how the shades of gray are affected!

Although this seems like a fairly simple illusion, there are some basic principles that are used in other illusions. Hopefully, with this example you'll be able to learn the basic principles of gray shading, and then when you see it in use on another illusion, you'll understand it even better. That's why we created this illusion, sure it may not be the most fun illusion in our entire portfolio... but hey, those boxes really do appear to be different shades of gray, based upon their surroundings!

How could you use this in real life? Well, if you were on the beach and wanted to appear very tan as compared to those around you, it would be better for you to place your beach blanket close to the fair-skinned people, or even better, close to the white sand. Or just get a white beach blanket, and not a black beach blanket!

 


Best of the Best (our newest original optical illusions)
moving backgrounds

Moving Backgrounds

It moves! You must zoom in to get the full illusion. You'll see the rings rotate, even though they are not moving at all.

We've created several sizes so you can use as your desktop background.

 

floating blocks video

9/13/2011 - Floating Wood Blocks Video
Created these floating wooden blocks and attached them to a globe. Watch the video and see how the blocks follow the camera! Pretty amazing!

» Continue to view the video...

moving red spiral

Moving Red Spiral - 7/27/2011
Sometimes, while I'm just playing around in Photoshop, something appears, as if by magic. This illusion was one of those that just jumps off the page.

It's a large red spiral on a purple background that appears to jump and move. Works better for some people than others, but if you like the moving illusions, you'll love it!

» Continue to see the moving spiral image...

Diamonds appear to be the same shade. But they're not!

Same Shade Diamonds

Wow! It will look like the diamonds on the top are much darker than the diamonds on the bottom.

You won't believe how amazing this incredible optical illusion is.

check out the Obama Illusion

The Obama Illusion
We made this original Barack Obama Illusion and then we made it famous!

Stare for about 30 seconds and you'll see his ghostly image appear on the wall!

» Continue and see a ghostly image...

Most Popular:
Share (please?)

Have time? You simply MUST see all of the TOP 10 Optical Illusions!

  1. Jesus Illusion
    Always fun, even if you've already seen it! Very strong and fun.
  2. Cool Optical Illusions Blog
    Don't miss it!
  3. Love Test
    Not really, but it's pretty awesome how the hearts disappear.
  4. Moving Spiral
  5. Scary Illusion
  6. Optical Illusion Collection
  7. Floating 3d Cube Sculpture
    HOT
  8. Rotating Moving Spots
    Very Strong.
  9. Build your own impossible triangle
    A classic, one of our most popular of all time.
  10. Illusion Links

We post new optical illusions to Facebook first! Almost 5,000 people have already done this! (thank you, thank you times 5000!)

Tag Cloud is always interesting too...

Explore the Tag Cloud:

© 2009 CoolOpticalIllusions.com. All rights reserved.
Some optical illusions were created uniquely for this site, others are assumed to be in the public domain.