Color illusion 23
Since February 22, 2022 

an image with 100% saturation for each pixel (↑) and their distribution
in the CIE Yxy color space (↓)



an image with 75% saturation for each pixel

an image with 50% saturation for each pixel

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an image with 0% saturation for each pixel

an image with 50% saturation for each pixel and their distribution in the
CIE Yxy color space

Copyright Akiyoshi Kitaoka 2022 (Septemebr 24)
Do you see illusory red-purplish color?
— Akiyoshi Kitaoka (@AkiyoshiKitaoka) March 31, 2022

















Copyright Akiyoshi Kitaoka 2022 (February 21)

"A demo of the Abney effect"
Copyright Akiyoshi Kitaoka 2022 (February 22)


"A demo of the Helmholtz–Kohlrausch effect"
Vivid colors appear to be bright.
Copyright Akiyoshi Kitaoka 2022 (February 19)
