Saturday, June 30, 2012

Sky Meets Land Illusion


and in other words, encapsulate
flickr artist: turbohamster

This is an amazing photo that has not been manipulated. The photo artist says, "no trickery just a puddle after a rainstorm in sonoma. this was just next to my mailbox. i count myself as lucky here."

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READ MORE - Sky Meets Land Illusion

Watercolor Optical Illusion

This is an example of the watercolor effect. This effect was first demonstrated by Baingio Pinna in 1987.

Simply put The watercolor effect is perceived when a dark (e.g., purple) contour is flanked by a lighter chromatic contour (e.g., orange). Under these conditions, the lighter color will assimilate over the entire enclosed area.

What does that mean? Take a look at the below image. You see 9 distinct squares. The center of each square looks white but the outer area of each square has taken on a watercolor shade, pink, green, yellow, blue etc...

watercolor optical illusion
Tic-Tac-Toe Board
(c)Walt Anthony
Created from samples
provided by Akiyoshi Kitaoka


The truth is that aside from the squiggly lines the only color here is white. The outer ring and the inner square are pure white.

Prove It: You can prove this by using the eye dropper tool in either of the following free graphics programs Paint.Net or Gimp or you can use the eye dropper tool in the free Colorzilla extension for Firefox browser. When you use these tools you will find that RGB value of everywhere on this image that is not a squiggly line is R:255 G:255 B:255 or #FFFFFF.

Print out this image and slide it into a plastic document protector. Now use an earasable marker and you have a reusable optical illusion Tic-Tac-Toe board.
READ MORE - Watercolor Optical Illusion

Friday, June 29, 2012

Flatiron Building Optical Illusion

This is the back side of the Flatiron building in Toronto, Canada. The mural was done by Derek Besant and installed in 1980. The building itself was built in 1892 and is unique in its own right, view it from the front.


Unveiling
flickr artist: David G Kelly

The mural, called Trompe.d'oille is even more unique than it looks due to two facts. 1st the mural isn't painted on the building but on a raised board attached to the building. The 2nd thing that makes this mural unique is that mural is actually painted to be a reflection of the Perkins Building, which is located directly across the street.

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READ MORE - Flatiron Building Optical Illusion

Ponzo Optical Illusion

The Ponzo illusion is an optical illusion that was first demonstrated by the Italian psychologist Mario Ponzo (1882-1960) in 1913. He suggested that the human mind judges an object's size based on its background.

The typical example of this is the figure below. This is the typical railroad track scheme usually used to represent this illusion. The vertical lines appear to go off into the distance like train tracks. This gives us the impression that the line in the distance is larger then the line that appears to be nearer to the viewer.

Ponzo Optical Illusion

Mario Ponzo
1913

Seeing this illusion against a great real photo backdrop can be amazing. Most of the time people pick train tracks. Below is an outstanding photo that presents this optical illusion slightly different...

The two red lines (or three if you move your mouse over the image) below are duplicates, they are the exact same size. Which image is more convincing the one with two lines or the one with three lines?

Ponzo Illusion
(c) 2012 Walt Anthony

Project: Create your own illusion. Here is a suitable image of train tracks (right click and select "save target as" or "save link as" depending on your browser). You can use Windows Picture and Fax viewer to print it out.

Now that you have it printed try and create your own illusion.

Use 2 Popsicle sticks painted red or just draw red lines with a marker.
Does changing the color change the effect?
Does using two different colors alter the illusion?
Try fat and skinny lines. Does the thickness of the lines affect this illusion?
Vary the distance between the lines, does this change the effect?
Is a three dimensional Popsicle stick as effective as 2 dimensional red line?
Does the distance from which you view the illusion change the illusion?

What can you conclude, if anything, about how we perceive things from this project?
READ MORE - Ponzo Optical Illusion

Thursday, June 28, 2012

Sailing Optical Illusion

Here is a nice beginning of Summer optical illusion. With the temperature on the rise a nice day on the lake is just what the doctor ordered, just don't forget your sunscreen.

Sailing Optical Illusion

Herman J. Verwaal
copyright 2012
used w/permission


Herman has a large collection of optical illusions that he has created over time. He has generously allowed me to feature a few of his pieces here. This is just one (check the sitemap for his others) of many. His illusions run the gambit and I will be showing you more of his excellent Trick-Art in the future.

Thank You for sharing these excellent illusions Herman.
READ MORE - Sailing Optical Illusion

Elephant Painted Illusion

Painted Elephant Illusion


This is similar to the painted illusion, I previously done a nude girl illusion where a author has made a amazing painting on a old man's head to create a illusion, this is something similar to the painted illusion, A annnymous has made a fantastic painting on the hand which look like a Elephant. Thanks for author's for such a illusion.
READ MORE - Elephant Painted Illusion

Hering Optical Illusion

This optical illusion was discovered by the German physiologist Ewald Hering in 1861. The two blue lines are both straight and parallel to each other. If you are like most folks you may see things differently. The lines in fact may look as if they are bowed outward.


Ewald Hering
1861

The distortion is produced by the lined pattern on the background, that simulates a perspective design, and creates a false impression of depth. If you pass your mouse over the image the background lines will be removed and you can see for yourself that the blues lines are definitely straight.

Project: Create your own illusion. Select a sheet of paper and place a dot in the center of the sheet. Now draw 10 lines through the center, mimicking as close as you can the background of the above illusion. Now on a sheet of clear document protector draw your two vertical lines.

Increase the amount of background lines to 18. Does that affect the illusion?
Does changing the color of the background change the effect?
Does changing the color of the background lines change the effect?
Does using two different colors for the vertical lines alter the illusion?
Try fat lines. Try skinny lines. Does the thickness of the lines affect this illusion?
Vary the distance between the vertical lines, does this change the effect?
Does the distance from which you view the illusion change the illusion?

What can you conclude, if anything, about how we perceive things from this project?
READ MORE - Hering Optical Illusion

Wednesday, June 27, 2012

Sphere Size Illusion

A visual illusion of two spheres.
Does one appear to be larger than the other?

Sphere Size Illusion
READ MORE - Sphere Size Illusion

Create Your Own Sky Optical Illusion

This a very clever photo taken of a new product called Cumulus-in-a-Can or at least that is what the photo artist says,
"Cumulus in a can... You can buy anything these days! :) "
Despite appearances this image was not photoshopped. I have heard people point to the fact that the sky is a different color blue around the can as proof. To those I would only point out that that is the way the sky is with light fluffy clouds floating around. Besides you can go to this large image and take a closer look.

This was one of many attempts at getting this shot just right. In the end though this outstanding photo, the best of the bunch, has one basic flaw.

Can you spot the flaw?


Create Your Sky
Copyright 2012
Flickr Artist: raspberrytart
Used w/permission


What brought this image to my attention was the fact that another blog stole the image and put it on their blog without giving the artist credit. She had just uploaded the image and within 8 days someone had stole it.

She has an excellent eye, click on either link under the photo to see more photo art from this artist.

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READ MORE - Create Your Own Sky Optical Illusion

Road painted illusion

What you were looking at this image? this is really confusing painted illusion, Four guys are standing in water and i think they were adjusting a pipe or may be something in water. i really enjoyed this Road Painted Illusion. What about you?


amazing painted illusion
READ MORE - Road painted illusion

Checker Shadow Optical Illusion

This is the Checker Shadow Optical Illusion. It was developed by Edward H. Adelson of the Perceptual Science Group at MIT. The interesting thing about the below optical illusion is that square A is the exact same shade of gray as square B.

One way to identify a color is by it's Red, Green, Blue values or RGB for short. When written for 24 bit truecolor R:0 G:0 B:0 is black and at the other end of the spectrum R:255 G:255 B:255 is white. The other 16 million or so colors fall somewhere in between. Squares A and B below each have the same RGB value of R:120 G:120 B:120.


So now that I said it is true you have all obviously accepted the fact that square A and square B are indeed the exact same shade of gray, right? I mean if it is on the internet it must be true. Would it be easier if you could prove it to yourself and any skeptics you might run into (like Mom and Dad or that annoying sibling). Continue on and we'll get around to proving my statements correct.

Project: Proving square "A" is the same shade of gray as square "B".

There are a few ways you can prove that the 2 squares are the same shade.

Before we continue, right click on the image and open it in a new window. Now you have a giant image to work with.

1) You can use a graphics program like Photoshop, Paint.Net, Gimp or the Colorzilla extension for Firefox browser.

My choice is Colorzilla w/Firefox. Using the eyedropper tool you can determine
that the RGB values of the grays in both square A and square B are 120-120-120.
Not good enough for you, heh? Still not ready to trust that the computer is correct or you don't have an eyedropper tool? Either way you can move on to step 2 or 3 below.

2) Cut out a cardboard mask.

By viewing patches of the squares without the surrounding context, you can remove the effect of the illusion. A piece of cardboard with two holes created in the right spots will work as a mask for a computer screen or as a mask for a the printed illusion. Holding up this mask to the image on the screen or printed paper should be enough to convince you. But if you were like my daughter nothing but this next step would do.


3) Print the image and cut out the squares.

This is another way to isolate the patches from their surrounding context. Cut out each square along the edges. Remove them. Hold them side by side. Overlap the cut out
squares. Yup they're the same shade of gray. No denying it now, is there?

Please note that I have heard that some printers have "enhancement" processing that increases the contrast of edges. This can cause the printed squares to have slightly different values of gray. I haven't run into one of these printers yet where the overlapped squares didn't look identical, but your mileage may vary.

WHY you ask? You might have come to terms with the fact that the two squares are the same shade of gray, but how does this optical illusion work? The creator of the illusion has an explanation here.

READ MORE - Checker Shadow Optical Illusion

Tuesday, June 26, 2012

The Hidden Tiger Optical Illusion

the hidden tiger illusion


This must be the toughest optical illusion I have ever come across, created by American wildlife artist Rusty Rust, that shows a huge Bengal Tiger standing in a bamboo forest. Your mission now is to look for “The Hidden Tiger” in the image below, where is the hidden tiger?
READ MORE - The Hidden Tiger Optical Illusion

Acrobats in Optical Illusions

While cruising the internet I came across the Acrobats Illusion Video below, this mention of acrobats and illusions reminded me of the below painting by Rob Gonsalves. He has an excellent eye for transitioning from the normal to the surreal.

Acrobatic Engineering Optical Illusion

Acrobatic Engineering
Copyright Rob Gonsalves
Available for sale across the internet





Les Kiriki Acrobates Japonais is an excellent optical illusion video directed by Segundo de Chomon in 1907.
According to the IMDB the plot is "A troupe of Japanese acrobats perform various stunts in front of the camera." They further state that Segundo "Joined Pathe Laboratories in 1901 where he specialized in adding color to film."
Yes this was created and hand colored in 1907.

Hit play button to start the video or go to Google Video.
READ MORE - Acrobats in Optical Illusions

Monday, June 25, 2012

Crooked Man's Optical Illusion

Here is another excellent illusion. Looking at this image things seem a little out of sorts.

Is it leaning to one side?

The truth is that each square that makes this image up is the exact same size. Some have white borders and some have black borders but the whole image is plumb. That is to say that the lines vertical and horizontal are all respectively parallel to each other.

To paraphrase a nursery rhyme despite the title above this is not the "The Crooked Man's Optical Illusion"

Fobie Optical Illusion

Herman J. Verwaal
copyright 2005
used w/permission


Herman has a large collection of optical illusions that he has created over time. He has generously allowed me to feature a few of his pieces here. This is just one (check the sitemap for his others) of many. His illusions run the gambit and I will be showing you more of his excellent Trick-Art in the future.

Thank You for sharing these excellent illusions Herman.
READ MORE - Crooked Man's Optical Illusion

Sunday, June 24, 2012

Land of the Giants Optical Illusion

This is a wonderful photo because there was no photo manipulation done to this what-so-ever. The Welsh hobbyist photographer and artist Twm says of this picture, "My younger brother outside Howells department store Cardiff"


Caught my eye
flickr Artist: Twm™

Excellent "eye" (pardon the pun) Twm! Click on either link under the photo to see more art from this photographer.

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READ MORE - Land of the Giants Optical Illusion

Saturday, June 23, 2012

Real World Cafe Wall Optical Illusion

This famous illusion is very effective in this example. The tiles are all square and all horizonal lines are parallel to each other. The history of this can be read here in a previous post.


Illusion
flickr author: Corgi_T

I think the caution sign is very appropriate given the fact that this wall messes with your perception of reality.

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READ MORE - Real World Cafe Wall Optical Illusion

Friday, June 22, 2012

Tornado Optical Illusion

Here is a brand new creation by Herman J. Verwaal. This optical illusion has an amazing sense of motion while viewing it. As you scan your eyes across the image the tornado provides the illusion of twisting counter-clockwise.

Tornado Optical Illusion

Herman J. Verwaal
copyright 2012
used w/permission


Herman has a large collection of optical illusions that he has created over time. He has generously allowed me to feature a few of his pieces here. This is just one (check the sitemap for his others) of many. His illusions run the gambit and I will be showing you more of his excellent Trick-Art in the future.

Thank You for sharing these excellent illusions Herman.
READ MORE - Tornado Optical Illusion

Thursday, June 21, 2012

Maxibus Designed illusion

Its really amazing painting or a trippy design in this bus.Those tires are looking like a Disk and that DJ is using it as a DJ's Disk. this is little bit similar to the truck painted illusion.

Maxibus illusion
READ MORE - Maxibus Designed illusion

Bezold Effect Illusion

Bezold Effect Illusion


The Bezold Effect is an optical illusion, named after a German professor of eteorology, Wilhelm von Bezold, who discovered that a color may appear different depending on its relation to adjacent colors. In the above example, the red seems lighter combined with the white, and darker combined with the black.
READ MORE - Bezold Effect Illusion

Wednesday, June 20, 2012

Jastrow Size Optical Illusion

The Jastrow illusion is an optical illusion discovered by the American psychologist Joseph Jastrow in 1889. In this image, the two figures are identical, although the bottom one appears to be larger.

Jastrow Size Optical Illusion

So you look at the above and say OK maybe they are the same size. You can even see that it is true. How about the photo below, is it possible that these two are the same size?

Three Cubes Optical Illusion

Even knowing that the two above are the same size it is hard to believe. Look at them how is it possible for them to be the same size? Well you don't have to take my word for it, check out the video below. This time Seeing is believing!


Filmed at the Hong Kong Science Museum by YouTube.com user kennsiu.
READ MORE - Jastrow Size Optical Illusion

Three Cubes Optical Illusion

Here is another interesting illusion. When I first looked at this image I saw three cubes that had been folded from a paper cutout. The cubes looked a little sloppy and deformed. But the truth dawned on me and I realized that these are three perfectly shaped cubes, each represented by flat sides and proper angles. It is just the checker pattern that causes these cubes to look deformed. Well Done Herman!

Three Cubes Optical Illusion

Herman J. Verwaal
copyright 2005
used w/permission


Herman Verwaal has a large collection of optical illusions that he has created over time. He has generously allowed me to feature a few of his pieces here. This is just one (check the sitemap for his others) of many. His illusions run the gambit and I will be showing you more of his excellent Trick-Art in the future.

Thank You for sharing these excellent illusions Herman.
READ MORE - Three Cubes Optical Illusion

Saddam Husein’s Smiling Face Appears On The Moon Illusion

saddam-hussien-illusion


Look at the Moon properly and find what is in it? Can you see the face of Saddam Hussain? i propably see at, i think it must be a photoshopped pictures.
READ MORE - Saddam Husein’s Smiling Face Appears On The Moon Illusion

Tuesday, June 19, 2012

DIY Dragon Optical Illusion

Below are two videos of Dragons that have been created by folding paper. They are not motorized in any fashion and at no point in either video do the dragon's move in the slightest.

However due the way they are folded and an optical illusion they will all appear to follow the camera. First user jdannan on YouTube.com shares this video of his pet dragon.


Second user leezbot on YouTube.com shares this video of a small dragon family. The family is very nice and I believe that the little blue dragon above originated with this family before striking out on his own.


If you would like to create your own pet dragon click the below image and download the large image to your computer. Then using A4 size paper print out the template and follow the directions.

Dragon Optical Illusion


I will follow up later this week with an explanation and examples on why this optical illusion occurs.
READ MORE - DIY Dragon Optical Illusion

Hidden Face in Beans Illusion

hidden face in beans illusion


There is a face hidden in these beans. See if you can locate it and how long does it take you. Feel free to post your comments below.

I can find it within 3 seconds. How long do you take to spot the human face? Is that mean my brain is better developed than most of the people or maybe including you?

Need a hint?

Move from bottom center to bottom left and you are found to see it :)
READ MORE - Hidden Face in Beans Illusion

Monday, June 18, 2012

Lady in the Smoke Illusion

lady-in-smoke-illusion


I think the photographer must be very much alart to take this kind of pictures. The Smoke has producing a beautifull women.
READ MORE - Lady in the Smoke Illusion

Sunday, June 17, 2012

Angry Biker Or Sad Rabbi Illusion?

Angry Biker or Sad Rabbi illusion


Mind to tell me what do you see in the first illusion picture. Angry biker or sad rabbi? It all depends on how do you see the picture above. The left hand side picture showing the angry biker but the right hand side showing sad rabbi.
READ MORE - Angry Biker Or Sad Rabbi Illusion?

Where's Waldo Absolut Style

Here is another excellent Hidden Image illusion to have some fun with. Absolut's 82 vodka bottles image. Absolut has had many excellent ad campaigns over the years and they don't disappoint us with this one. A little viral marketing never hurt anyone.

Find in the image below 82 different outlines of absolute bottles. Click the image for a larger version or click here for a monster 1600x1200 1.5 meg version.

Let's start off the list.

1. The police tape lower right.
2. The dead bottle outline lower right within the police tape.
3. The cans tied to the just married car.
4. The stairs lower right above the police tape.
5. The stairs middle bottom.
6. The three wall cutouts and windows on the Museum of Natural history. One big bottle under each word Museum, Natural and History.
7. Between the two front legs of the skeleton in the Museum.
8. The alien space craft taking the cow (upside down).
9. The flock of flying things next to the spaceship. Is that Captain Underpants?
10. On the deck with the party goers in the lower left I see 6 but I'll only claim the actual bottle of vodka sitting on the table.

Your turn...
READ MORE - Where's Waldo Absolut Style

Saturday, June 16, 2012

Spiral Optical Illusion

Here is another amazing illusion with a sense of motion. As you scan your eyes across the image the spirals provide the illusion of rotating.

Spirals Optical Illusion

Herman J. Verwaal
copyright 2005
used w/permission


Herman has a large collection of optical illusions that he has created over time. He has generously allowed me to feature a few of his pieces here. This is just one (check the sitemap for his others) of many. His illusions run the gambit and I will be showing you more of his excellent Trick-Art in the future.

Thank You for sharing these excellent illusions Herman.
READ MORE - Spiral Optical Illusion

Friday, June 15, 2012

Impossible Staircase of Squares Illusion

Impossible Staircase of Squares

Impossible triangle has been created by using the staircase of squares
READ MORE - Impossible Staircase of Squares Illusion

3-D Model of Escher's Ascending and Descending Optical Illusion

The below 3-D model of Escher's Ascending and Descending was created by John Atkinson using Hash Inc.'s Animation:Master. John says,
"Over the Christmas holiday of 2001, I was reading "Escher on Escher" and became taken with the notion of attempting to create a computer model of the subject of one of my favorite Escher illustrations--the cluster of buildings in his work entitled "Ascending and Descending". This was one of what have been termed his "Impossibility Series"."
John also provided a little peak behind the scenes of this image. You can check out a video clip that let's you walk around the stairs just as if you were one of the monks. This allows you in on a little secret of how this optical illusion was accomplished in a 3D model.

Ascend Descend Optical Illusion

Homage to M.C. Escher
Copyright © 2002 John Atkinson
2nd Place, Jan 2002 Anything Goes
Click for larger version
Used w/permission


Other Works by M.C. Escher


READ MORE - 3-D Model of Escher's Ascending and Descending Optical Illusion

Thursday, June 14, 2012

Vertigo Optical Illusion

Some people may react to this anomalous motion optical illusion and if you think you might be one of these people it is important to read the caution at the top of this page prior to proceeding.

Below is an optical illusion by Miwa Miwa obviously a fan of Alfred Hitchcock movies. Excellent work Miwa, thanks for sharing your illusions with us.

Vertigo Optical Illusion

Vertigo
(c) miwa miwa 2012

Used w/permission
READ MORE - Vertigo Optical Illusion

Wednesday, June 13, 2012

Rabbits and Fox Illusion

I found this image on PD4's journal. His site is in Russian, but even so he didn't seem to provide any background on these hunters. I guess the rabbits are tougher in Russia.

You can view each hunter up close by clicking here.

Rabbit and Fox Optical Illusion

Rabbits Turn the Table on the Fox Illusion
READ MORE - Rabbits and Fox Illusion

Zollner Motion Optical Illusion

Even though the basic illusion here is based on the Zollner illusion there is also a lot of anomalous motion indicated in this optical illusion. The four columns are all parallel to each other, but some viewing this might experience the columns as leaning toward or going away from one another.


Zollner Motion
Based on the work of A.Kitaoka

READ MORE - Zollner Motion Optical Illusion

Tuesday, June 12, 2012

Tattoo Face Illusion

This is one of the best Tattoo which i sawed

Tatoo Face Illusion

The tattoo has designed so amazingly back side of the face it, I wish… I had a tattoo like this on my face
READ MORE - Tattoo Face Illusion

Escheresque Waterbridge Illusion?

Here is a very unusual site. At first glance my instinct was to think there is something wrong with this picture. The image reminded me of something out of a M.C. Escher drawing.



The bottom line though is that this is indeed what it looks like a waterbridge. This bridge opened for business in 2003.
"Public infrastructure projects are notorious for taking longer than expected, but Germany'’s new water bridge tying the Elbe-Havel canal to the important Mittelland canal, which leads to the countryƂ’s industrial Ruhr Valley heartland, was over 80 years in the planning." Read more...
READ MORE - Escheresque Waterbridge Illusion?

Monday, June 11, 2012

South Pole After Image Optical Illusion

The nature of this optical illusion is to paint a grey scale image using only your eyes.

Below is Lieutenant John Bortniak out for a stroll at the South Pole.

Focus on his nose in the center for 30-45 seconds then move your mouse over and the image it will then swap to the grey scale image, but you will see the original image in all it's glory.


Photographer: Commander John Bortniak, NOAA Corps


Stare at the image below. It will show the negative image for 10 seconds and the gray scale image for 1 second. The longer you look at it the more pronounced the effect.


Illusion (c) 2012 W. Anthony
Photographer: Commander John Bortniak, NOAA Corps

Want to make your own go here.
READ MORE - South Pole After Image Optical Illusion

Friday, June 8, 2012

Rocket Launch Optical Illusion

Here is another wonderful illusion with a sense of motion. As you scan your eyes across the image the rocket provides the illusion of lifting off of the launch pad.

Rocket Optical Illusion

Herman J. Verwaal
copyright 2005
used w/permission


Herman has a large collection of optical illusions that he has created over time. He has generously allowed me to feature a few of his pieces here. This is just one (check the sitemap for his others) of many. His illusions run the gambit and I will be showing you more of his excellent Trick-Art in the future.
READ MORE - Rocket Launch Optical Illusion

Thursday, June 7, 2012

Where's Waldo 100 Films Illusion

From lovefilm.com comes this image depicting 100 films. Click the image for a larger version.

How many movies can you find?

(Via Giavasan)

cascade Optical Illusion

Click for larger image

Here are a few I see right off the top.

Toy Story
Dances with wolves
Beetle Juice
Pete's Dragon
Scorpion King
Goldeneye
Napoleon Dynamite
Blazing Saddles
Titanic
Doctor Who

There's 10 only 90 to go.
READ MORE - Where's Waldo 100 Films Illusion

Wednesday, June 6, 2012

Sexy Silhouette Optical Illusion

I love good silhouettes. They are almost always ambiguous. When dealing with a silhouette the subject can be looking toward you or away from you and the lines can be drawn in to show either perspective.

Which way is this lovely girl actually facing?

Sexy Silhouette Optical Illusion
P2 - Beach 3
Flickr Artist: ZaksterNT
READ MORE - Sexy Silhouette Optical Illusion

Cascading Lines Optical Illusion

This optical illusion is based on the Poggendorff Illusion. In that illusion we saw that diagonal lines passing through a rectangle could be deceptive. Below we have horizontal bars passing through diagonal spaces. While viewing this illusion it is easy to be drawn into the perception that each set of lines is a little lower each time they pass through the blue gaps.

You and I know the truth though. All we have here are horizontal lines that run straight and true across the entire illusion. Excellent work Herman.

cascade Optical Illusion

Herman J. Verwaal
copyright 2005
used w/permission


Herman has a large collection of optical illusions that he has created over time. He has generously allowed me to feature a few of his pieces here. This is the seventh (check the sitemap for his others) of many. His illusions run the gambit and I will be showing you more of his excellent Trick-Art in the future.
READ MORE - Cascading Lines Optical Illusion

Gray Fuzz Illusion

Gray Fuzz Illusion
Do you see gray areas in between the squares?

Now where did they come from?
READ MORE - Gray Fuzz Illusion

Tuesday, June 5, 2012

Poggendorff Optical Illusion

The below flash presentation is an example of the Poggendorff illusion.
Wikipedia
The Poggendorff Illusion is an optical illusion that involves the brain's perception of the interaction between diagonal lines and horizontal and vertical edges. It is named after Johann Poggendorff (1796-1877), a German physicist who first described it in 1860.
It can be a very strong illusion at first. Trying to line up the top and bottom lines so they meet can be tricky. Most of us though will not be fooled for long and some may not be fooled at all. I can align the two lines just about every time now. It has reached the point that I doubt if it will be a challenge for anyone. Maybe it never was a strong illusion, sometimes my memory plays tricks on me. This illusion seems to be stronger with kids.

Move one of the lines sticking out of the box until you think it matches up with the other one. Now press the button.

Do the lines match up?



READ MORE - Poggendorff Optical Illusion

Castle Illusion


castle-illusion


What do you see in this picture? this is similar to the Taj mahal pictures when you see the Taj Mahal at night at will shade like this reflect of the water. clich here to see the image of taj mahal at night .
READ MORE - Castle Illusion

Monday, June 4, 2012

dog or a towel Illusion


Is this really a dog, or a towel?
Cute Dog and Towel Illusion

Sure enough, this is a photograph of a dog, lying on a towel or some sort of linens. Awfully tired, the poor doggy has closed his eyes for the afternoon and must be taking a short cat-nap. Or... umm.. dog nap I guess you would all it.

Notice how through years and years of evolution, this dog has learned how to blend in to his surroundings to be camaflauged from his predators - or more likely, just hidden enough to sneak away from the daily chores and take a well deserved nap.

Makes you want to go get one of these little babies, doesn't it? Well, this type of dog is called a Shar-Pei. Why not go adopt one, although they don't stay this cute and cuddly all their life! Alhtough they do make great pets!
READ MORE - dog or a towel Illusion

Saturday, June 2, 2012

World's Largest Lightness Optical Illusion

This illusion was one of the ten finalists in the 1st annual (2005) "Best Visual Illusion of the Year" contest. It was billed as the "World's Largest Lightness Illusion." In all of the below images the letters, figures, chess pieces, and orbs and their counterparts are all the exact same color. For a detailed explanation read this article in Nature (Image segmentation and lightness perception) or read their shorter explanation submitted with their illusion here. Let's take each image one at a time.

The EVCP, 2005 and the human figures on the left are identical in color to their counterparts on the right, click on the image to view a 4960 x 3508 pixel size image. Scroll back and forth and try to see these figures as the exact same color they are.

lightness Optical Illusion

© 2005 Barton L. Anderson & Jonathan Winawer
used w/permission

Still not convinced maybe a static example isn't good enough click on the image below and view another example of this illusion in motion. Quicktime is required to view this illusion. Both the left and the right orbs are the exact same color at every moment.

lightness movie Optical Illusion

© 2005 Barton L. Anderson & Jonathan Winawer
used w/permission

If the movie was hard to believe you could do what I did and capture the screen, print out the image then cut out each orb. This will prove beyond a doubt that the orbs are the same color. If you don't have time to go through the above steps you can just check out my last example. Move your mouse over the image and you effectively see the chess pieces as if you cut them all out. Cool, ain't it?

© 2005 Barton L. Anderson & Jonathan Winawer
used w/permission

Submissions for the 2012 contest are now welcome. Submit your ideas now and take home this prestigious award!
About the contest

"The contest is a celebration of the ingenuity and creativity of the world'’s premier visual illusion research community. Visual illusions are those perceptual experiences that do not match the physical reality. Our perception of the outside world is generated indirectly by brain mechanisms, and so all visual perception is illusory to some extent. The study of visual illusions is therefore of critical importance to the understanding of the basic mechanisms of sensory perception, as well as to cure many diseases of the visual system. The visual illusion community includes visual scientists, ophthalmologists, neurologists, and visual artists that use a variety of methods to help discover the neural underpinnings of visual illusory perception."
READ MORE - World's Largest Lightness Optical Illusion
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