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


"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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