Let's make an illusion image

since July 30, 2014


"Illusion of striped cords"

Copyright Akiyoshi Kitaoka 2015 (May 30)



Click it and you will download a high-resolution file.

Kitaoka, A. (1998). Apparent contraction of edge angles. Perception, 27, 1209-1219.


"Scintillating grid illusion"

Copyright Akiyoshi Kitaoka 2015 (May 30)



Hermann grid illusion


Hermann grid illusion and an image to make an scintillating grid illusion demo (Click it and you will download a high-resolution file)
Copyright Akiyoshi Kitaoka 2015 (May 30)


scintillating grid illusion


Schrauf, M., Lingelbach, B., Wist, E.R. (1997) The scintillating grid illusion. Vision Research, 37, 1033-1038.




The development
(Click this image and a high-resolution file is downloaded (November 12, 2013))



a simple version
(Click this image and a high-resolution file is downloaded)

Copyright Akiyoshi Kitaoka 2014 (March 5)




a Ritsumeikan University version
(Click this image and a high-resolution file is downloaded)

Copyright Akiyoshi Kitaoka 2015 (May 18)



the development
(Click this image and a high-resolution file is downloaded)

Copyright Akiyoshi Kitaoka 2011 (July 1)


"Rotating illusion image 2"

Used seals: ニチバン マイタック(R)ラベル カラーラベル Ø8mm ML-120

Copyright Akiyoshi Kitaoka 2014 (Aug 14)






"Rotating illusion image"

Ring image (MS-Word file, A4 size)

Used seals: ニチバン マイタック(R)ラベル カラーラベル Ø8mm ML-120

Copyright Akiyoshi Kitaoka 2014 (July 30)


high-resolution image


Blue and yellow disks

Copyright Akiyoshi Kitaoka 2014 (August 4)


I made this.

Copyright Akiyoshi Kitaoka 2014 (October 18)


Copyright Akiyoshi Kitaoka 2014 (July 30)


Copyright Akiyoshi Kitaoka 2014 (July 31)



"Fluttering heart illusion image"

Copyright Akiyoshi Kitaoka 2014 (July 31)



large bitmap



"Reverspective (Ames trapezoid) image"



a simple version

Copyright Akiyoshi Kitaoka 2014 (March 5)
High-resolution file


Shorter sides appear to be valley folds, though they are actually mountain folds.

Copyright Akiyoshi Kitaoka 2014 (April 5)


Copyright Akiyoshi Kitaoka 2014 (April 12)




(30MB)


"Kinkaku reverspective"

Depth orientation of folds appears to be reversed.

Copyright Akiyoshi Kitaoka 2011 (August 22)

For "Reverspective", see artworks of Patrick Hugh. In Japan, professor Norman Cook in the Kansai University studies the phenomenon.




The development
(Click this image and a high-resolution file is downloaded (November 12, 2013))


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