Color constancy 8

since December 19, 2020

Do you see the strawberries as red?
— Akiyoshi Kitaoka (@AkiyoshiKitaoka) September 16, 2023

"Illusory reddish coke can"

The can appears to be reddish, though the color consists of black and white.

北岡明佳　（2021）　「新しい並置混色による錯視とVRへの応用」　（2021年9月12日（日）10:30-11:50・第26回日本バーチャルリアリティ学会大会（立命館大学・オンライン）・基調講演1）　Presentation (html)

"Illusory red tulips"

These apparent red tulips are gray or nearly gray of cyan. In addition, those aparent yellow tulips are green, and the white ones are cyan.

"Illusory white and black"

The apparent white piece in the left image is the same color as the apparent blue piece in the right image. Moreover, the apparent yellow piece in the left image is the same color as the apparent black piece in the right image.

From the top: the original image, an image transformed with additive color change, and an image transformed with the two-color method

"Illusory blue"

The car appears to be bluish, though the pixels are nott.

"Illusory yellowish petals"

Petals appear to be yellowish, though the pixels are not.

(an expanded image around a lower-left part)

"Illusory reddish strawberries"

Strawberries appear to be reddish, though the pixels are not.

(an expanded image around the tip of the lower-left strawberry)

"Illusory bluish strawberries"

Strawberries appear to be bluish, though the pixels are not.

(an expanded image around the tip of the lower-left strawberry)

"Blue strawberry illusion"

Strawberries appear to be bluish, though the pixels are not.