Illusion designs from friends #10

The copyright of each image belongs to the corresponding creator(s), to whom contact should be addressed in the case of request for use (even if it is for educational, research or personal use).

since February 7, 2011


"Square Ghost"

It's a perfect square, but the grey-scale inside makes the square appear to bulge, and there is a glowing effect around the outsides.

Copyright James Newcombe 2017 (February 10)
produced by James



"Notice board"

The Chinese characters appear to move leftward.

Copyright Fumito Ito 2014 (October 17)
produced by ITO Fumito




Should you not have seen any illusion, try to see the image below.




"Possible disambiguation of ambiguous apparent movement depending on motion illusion in stationary images"

In our observation, the ring tends to rotate clockwise longer than counterclockwise.

Copyright Tada Sawada 2014 (August 1)


"Possible disambiguation of ambiguous apparent movement depending on motion illusion in stationary images 2"

In our observation, the ring tends to rotate counterclockwise longer than clockwise.

Copyright Tada Sawada 2014 (August 1)




"Kite mesh illusion"

Each side of a quadrangle is linear, but it appears to be distorted.

Copyright Yoshiko Ishibashi 2014 (June 5)


"Perpetual prismatic gear"

Each gear appears to rotate.

Copyright Chris Phillips 2013 (June 14)
from Chris Phillips, Huntington Beach, California, USA, June 14, 2013



"Spinning Airplane"

Each disk appears to rotate.

Copyright Chris Phillips 2013 (June 15)
from Chris Phillips, Huntington Beach, California, USA, June 15, 2013



"Spinning Leaves"

Each disk appears to rotate.

Copyright Chris Phillips 2013 (June 15)
from Chris Phillips, , June 15, 2013


"Ghost"

It appears to have black radial lines, concentric circles and some people see colors and peripheral rotation.

It was made using contextfree with the following code:

startshape ghost
background {b 1}
rule ghost {
36*{r -10 h 10 }{30*{y 0.99 s 1.099 r 5.5 h 10 b 0.06} CIRCLE {y 1}}
CIRCLE {s 1}
}

Copyright Ramiro Chavez Tovar 2012 (October 19)
from Ramiro, México, October 19, 2012

Akiyoshi's comment: The illusory lines might be novel. In addition, the image appears to contract when seen in the peripheral vision. Moreover, when the image is swayed, the center appears to move.


Akiyoshi's comment: The contrast-reversed image is excellent, too. White streaks appear. When the image is swayed, the center appears to move.


"Bird in the sky"

Rows of birds appear to move rightward or leftward.

Copyright Daniel Picon 2012 (September 26)
from Daniel, France, September 26, 2012


"Move 25"

Copyright Daniel Picon 2012 (September 26)
from Daniel, France, September 26, 2012



"Torii illusion"

The horizontal line segment appears to curve and vertical ones appear to tilt. These effects depend on the Hering illusion and the Zöllner illusion.

Copyright Dejan Todorivić 2012 (August 6)
from Proferssor Dejan Todorović, University of Belgrade, August 6, 2012




Torii, a gate of a shrine



"My wife and the wolf"

A lady appears to be going to be swallowed by a wolf.

Produced Akiyoshi Kitaoka 2012 (May 31)
Idea from Hiroyuki Hagura, May 31, 2012


"My wife and mother-in-law"

http://mathworld.wolfram.com/YoungGirl-OldWomanIllusion.html



"Perlin's view of Mandelbrot"

Moving your head sideways or forward can enchance perceived depth of layers.

Copyright Trond Olsen 2012
from Trond Olsen, February 27, 2012
Creative Commons Attribution 3.0 Unported License. Origin of author is Mandal, Norway

Ref. http://cs.nyu.edu/~perlin/


Modulated by Akiyoshi



"Dancing hula girl"

A hula girl appears to dance when the image is swung.

Copyright Midori Takashima 2012 (February 21)
from Dr. Midori TAKASHIMA, Iwaki Meisei University, Japan, February 21, 2012


© 2011, Siegfried M. Tögel
from Siegfried M. Tögel, Graphic Designer, Munich / Germany, August 31, 2011

© 2011, Siegfried M. Tögel
from Siegfried M. Tögel, Graphic Designer, Munich / Germany, August 31, 2011

# Quartet

© 2011, Siegfried M. Tögel
from Siegfried M. Tögel, Graphic Designer, Munich / Germany, August 31, 2011


Illusion design from friends #9

Illusion design from friends #8

Illusion design from friends #7

Illusion design from friends #6

Illusion design from friends #5

Illusion design from friends #4

Illusion design from friends #3

Illusion design from friends #2

Illusion design from friends #1


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