Color illusion IV
Since June 27, 2006
"Dogs of four colors"
There appear to be dogs of four colors, but actually they are of two colors. This effect depends on the chromatic version of the dungeon illusion.
Copyright Akiyoshi .Kitaoka 2007 (January 5)
"Dogs of two colors"
There appear to be dogs of two different colors, but actually they are the same yellow. This effect depends on the chromatic version of the dungeon illusion.
Copyright Akiyoshi .Kitaoka 2007 (January 5)
"Blue and green turtles"
There appear to be blue turtles and green ones, but actually they are the same color. This effect depends on the chromatic version of the dungeon illusion.
Copyright Akiyoshi .Kitaoka 2007 (January 5)
"Ring of blue dots"
When viewing the central dot, its color appears to be purple-blue while the ring appears to be blue, though they are the same color stimuli.
Copyright Akiyoshi Kitaoka 2006 (December 11)
"An intermediate color ring"
The color of the ring pointed by an arrow in the left image is the same as that in the right image, but they appear to be different from each other.
Copyright Akiyoshi Kitaoka 2006 (August 30)
"Quarrel of sea urchins"
The red in the left sea urchin appears to be different in chroma from the red in the right one, but they are identical.
Copyright Akiyoshi Kitaoka 2006 (July 6)
"Illusory red spirals"
This image consists of only cyan (greenish blue) pixels, but there appear reddish spirals.
Copyright Akiyoshi Kitaoka 2006 (June 27)
"Illusory blue spirals"
This image consists of only red, but there appear light-bluish spirals.
Copyright Akiyoshi Kitaoka 2006 (June 27)
"Illusory purple spirals"
This image consists of only green, but there appear purple spirals.
Copyright Akiyoshi Kitaoka 2006 (June 27)
"Illusory golden spirals"
This image consists of only blue, but there appear golden spirals.
Copyright Akiyoshi Kitaoka 2006 (June 27)