The latest works 71

since Januarty 1, 2024


"Kinkaku with three colors"

This image consists of light blue, orange, yellowish green, white, and back.

Copyright Akiyoshi Kitaoka 2024 (April 2)


"Goch with three colors"

This image consists of orange, yellowish green, bluish green, white, and back.

Copyright Akiyoshi Kitaoka 2024 (April 3)


"'Girl with a Pearl Earring' with four colors"

This image consists of blue, light blue, orange, red, white, and back.

Copyright Akiyoshi Kitaoka 2024 (April 2)



"A demo of fluorescent colors in spatial color mixing"

Copyright Akiyoshi Kitaoka 2024 (March 31)



"Macula no soshi"

When viewed on OLEDs (sometimes on LCDs), the retinal position of observer's macula(s) is discernible.

Copyright Akiyoshi Kitaoka 2024 (March 4)


Copyright Akiyoshi Kitaoka 2024 (March 2)



"Double circles of Maxwell's spot illusion"

When viewed on OLEDs (sometimes on LCDs), green double circles appear to be brighter in the center of the visual field than those in the visual periphery.

Copyright Akiyoshi Kitaoka 2024 (February 25)


"Jinja tunnel"

The mist appears to expand.

Copyright Akiyoshi Kitaoka 2024 (February 14


The effect is not observed when the tunnel is moved.


"Sakazuki no kaiten"

Rings appear to rotate.

Copyright Akiyoshi Kitaoka 2024 (February 5)


"White bear and black bear"

The bear in the upper image appears white and that in the lower image appear black, but they are the same luminance (R149, G149, B149).

Copyright Akiyoshi Kitaoka 2023 (December 31)


「白熊と黒熊・並置混色版」

The bear in the upper image appears white and that in the lower image appears black, but they are the same black and white gratings (black 7 : white 3).

Copyright Akiyoshi Kitaoka 2023 (December 31)


"White eyes and black eyes"

The eyes in the left image appear white and those in the right image appear black, but they are the same luminance (R149, G149, B149).

Copyright Akiyoshi Kitaoka 2023 (December 31)


"A Coca-Cola can of illusory green"

The can appears greenish, though it consists of black and white stripes.

Copyright Akiyoshi Kitaoka 2023 (December 19)


"Eye of illusory red"

The eye appears red, though it consists of black and white stripes.

Copyright Akiyoshi Kitaoka 2023 (December 20)


"'Girl with a Pearl Earring' tranformed with spatial color mixing of the sRGB-modified Ostward color system"

Copyright Akiyoshi Kitaoka 2023 (December 17)


"Mona Lisa tranformed with spatial color mixing of the sRGB-modified Ostward color system"

Copyright Akiyoshi Kitaoka 2023 (December 17)


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