Illusion of fringed edges
since April 19, 2005
Elemental images
(copyright free; citation is necessary)
The horizontal edge in the middle of each image appears to tilt counterclockwise. This illusion was proposed by Kitaoka, Pinna and Brelstaff (2001, 2004).
References
Kitaoka, A., Pinna, B., and Brelstaff, G. (2001). New variations of spiral
illusions. Perception, 30, 637-646. 
Kitaoka, A., Pinna, B., and Brelstaff, G. (2004). Contrast polarities determine
the direction of Cafe Wall tilts. Perception, 33, 11-20.
Kitaoka, A. (2007) Tilt illusions after Oyama (1960): A review. Japanese Psychological Research, 49, 7-19. PDF
The elemental image of primrose's version
(copyright free; citation is necessary)
"Men with sunglasses"
Vertical or horizontal edges appear to be distorted and each quarter region appears to move.
Copyright A.Kitaoka 2000
"Noshi"*
*kind of decorations for cerebration
Inner gold squares appear to tilt counterclockwise.
Copyright Akiyoshi Kitaoka 2005 (2/14)
"Turtles"
Vertical or horizontal edges appear to tilt.
Copyright A.Kitaoka 1999
"Cultured turtles"
Vertical or horizontal edges appear to be distorted.
Copyright A.Kitaoka 2002
"Primrose's field"
This checkered background consists of squares but appears to wave. In addition, this figure shows a great amount of anomalous motion illusion.
Copyright
A.Kitaoka 2002
(c)Akiyoshi Kitaoka "Trick eyes"
Tokyo: KANZEN 2002