The latest works 52

since September 26, 2013



"Rotating aoki fruits"

*Aucuba japonica: small tree with red fruits

On a bright display, each ring appears to rotate clockwise whereas counterclockwise in a print in a dark illumination.

Copyright Akiyoshi Kitaoka 2014 (January 3)



"Rotating aoki fruits 2"

*Aucuba japonica: small tree with red fruits

On a bright display, each ring appears to rotate clockwise whereas counterclockwise in a print in a dark illumination.

Copyright Akiyoshi Kitaoka 2014 (January 3)



"Rotating aoki fruits 3"

*Aucuba japonica: small tree with red fruits

On a bright display, each ring appears to rotate clockwise whereas counterclockwise in a print in a dark illumination.

Copyright Akiyoshi Kitaoka 2014 (January 3)



"Rotating aoki fruits 4"

*Aucuba japonica: small tree with red fruits

On a bright display, each ring appears to rotate clockwise whereas counterclockwise in a print in a dark illumination.

Copyright Akiyoshi Kitaoka 2014 (January 3)



"Rotating aoki fruits 4"
(an improved version)

*Aucuba japonica: small tree with red fruits

On a bright display, each ring appears to rotate clockwise whereas counterclockwise in a print in a dark illumination.

Copyright Akiyoshi Kitaoka 2014 (January 7)



"Rotating aoki fruits 5"

*Aucuba japonica: small tree with red fruits

On a bright display, each ring appears to rotate clockwise whereas counterclockwise in a print in a dark illumination.

Copyright Akiyoshi Kitaoka 2014 (January 3)



"Rotating hot snakes"

Each disk appears to rotate in the direction from red to black (physically dark red-purple), blue (physically blue-purple), red-purple, back to red on PC displays. The direction of illusory motion is reversed when the printed image is observed in a dark illumination.

Copyright Akiyoshi Kitaoka 2013 (December 28)



"Rotating snakes: Red and blue, mixed with magenta"

Each disk appears to rotate in the direction from red to black (physically dark red-purple), blue (physically blue-purple), white (physically light red-purple), back to red on PC displays. The direction of illusory motion is reversed when the printed image is observed in a dark illumination.

Copyright Akiyoshi Kitaoka 2013 (December 28)



元の画像


「蛇の回転・赤と青」

ディスプレーでは赤→黒→青→白→赤の方向に円盤は回転して見える。印刷物を暗い所で見ると、その逆方向に動いて見える。しかし、いずれも錯視は微弱である。

Copyright Akiyoshi Kitaoka 2013 (December 28)



"Rotating snakes: Red and blue, mixed with green"

Each disk appears to rotate in the direction from red (physically dark yellow) to white (physically light green), blue (physically bluish green), black (physically dark green), back to red (physically dark yellow) on PC displays. Illusory motion is weak when the printed image is observed in a dark illumination.

Copyright Akiyoshi Kitaoka 2013 (December 28)



"Rotating snakes: Red and green, mixed with magenta"

Each disk appears to rotate in the direction from red to black (physically dark red-purple), green (physically gray), white (physically light red-purple), back to red on PC displays. The direction of illusory motion is reversed when the printed image is observed in a dark illumination.

Copyright Akiyoshi Kitaoka 2013 (December 27)



Original image


"Rotating snakes: Red and green"

Each disk appears to rotate in the direction from red to black, green, white, back to red on PC displays. The direction of illusory motion is reversed when the printed image is observed in a dark illumination. Both effects are weak.

Copyright Akiyoshi Kitaoka 2013 (December 27)




"Rotating snakes: Red and green, mixed with cyan"

Each disk appears to rotate in the direction from red (physically gray) to white (physically light cyan), green, black (physically dark cyan), back to red (physically gray) on PC displays. Illusory motion is weak when the printed image is observed in a dark illumination.

Copyright Akiyoshi Kitaoka 2013 (December 28)



"Rotating snakes: Red and green, mixed with red"

Each disk appears to rotate in the direction from red to black (physically dark red), green (physically brown), white (physically light red), back to red on PC displays. The direction of illusory motion is reversed when the printed image is observed in a dark illumination.

Copyright Akiyoshi Kitaoka 2013 (December 28)



"Rotating snakes: Red and green, mixed with green"

Each disk appears to rotate in the direction from red (physically brown) to white (physically light green), green, black (physically dark green), back to red (physically brown) on PC displays. Illusory motion is weak when the printed image is observed in a dark illumination.

Copyright Akiyoshi Kitaoka 2013 (December 28)


"Rotating snakes: Red and green, mixed with magenta: contrast reversed"

Each disk appears to rotate in the direction from green to black (physically dark green), slightly reddish color, yellow (physically light green), back to green on PC displays. Illusory motion is weak when the printed image is observed in a dark illumination.

Copyright Akiyoshi Kitaoka 2013 (December 28)



"Rotating snakes: Red and green, mixed with cyan: contrast reversed"

Each disk appears to rotate in the direction from red to dark red, gray, orange, back to red on PC displays. The direction of illusory motion is reversed when the printed image is observed in a dark illumination.

Copyright Akiyoshi Kitaoka 2013 (December 28)



"Christmas gift 2013"

Disks appear to rotate clockwise on display or counterclockwise in printed images under dark illumination.

Copyright Akiyoshi Kitaoka 2013 (December 24)



"Chickens"

Each disks appear to rotate clockwise on display or counterclockwise in printed images under dark illumination.

Copyright Akiyoshi Kitaoka 2013 (December 23)



"Ga-ga"

*"ga" in Japanese means a moth.

The image appears to twitch radially.

Copyright Akiyoshi Kitaoka 2013 (November 19)



"Shadow-dependent face tilt illusion"

The leftmost and third faces appear to tilt upward a little while the other two downward a little, though the four faces are identical

Copyright Akiyoshi Kitaoka 2013 (November 5)


"Shadow-dependent eye-direction illusion"

The leftmost and third faces appear to see upward a little while the other two downward a little, though the four faces are identical

Copyright Akiyoshi Kitaoka 2013 (November 5)



"Moving reversible figures"

The second and fourth rows appear to move rightward while the rest leftward. In addition, the borders of the rows appear to tilt: clockwise, counterclockwise, clockwise, counterclockwise from the top to the bottom.

Copyright Akiyoshi Kitaoka 2013 (November 5)


"Moving arrows illusion"

Arrows appear to move.

Copyright Akiyoshi Kitaoka 2013 (September 26)



"Spectral components"

Color stripes appear to move up and down.

Copyright Akiyoshi Kitaoka 2013 (September 8)


cf.


51 The latest works (April 2013 - September 2013)
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