Color constancy

since May 20, 2006



"Gold color constancy"

Physically bluish colors form apparent gold.

Copyright Akiyoshi Kitaoka 2011 (July 14)



(A variation with a stronger blue filter)





(Original photo of Kinkaku)



"Tomato color constancy"

A physically gray tomato appears to be reddish

transparency 55%

Copyright Akiyoshi Kitaoka 2011 (July 3, improved July 27)



"Tomato color constancy 2"

A physically green tomato appears to be reddish

transparency 60%

Copyright Akiyoshi Kitaoka 2011 (July 3, improved July 27)


(The original photo)

Copyright Akiyoshi Kitaoka 2011 (July 3, improved July 27)



"Tomato color constancy given by natural filtering (cyan)"

transparency 50%

Copyright Akiyoshi Kitaoka 2011 (July 3, improved July 27)

"Tomato color constancy given by natural filtering (cyan) 2"

transparency 25%

Copyright Akiyoshi Kitaoka 2011 (July 3, improved July 27)


"Tomato color constancy given by natural filtering (black)"

transparency 50%

Copyright Akiyoshi Kitaoka 2011 (July 3, improved July 27)

"Tomato color constancy given by natural filtering (black) 2"

transparency 25%

Copyright Akiyoshi Kitaoka 2011 (July 27)


cf.






A handout of "Eye color constancy"

Copyright Akiyoshi .Kitaoka 2009 (July 26)



"Blue Golden Palace (Kinkaku)"

The gold color is physically gray or bluish but it appears to be gold.

Copyright Akiyoshi Kitaoka 2009 (May 1)




Original photo



(original photo)


"2011 improved versions of train color constancy"

Copyright Akiyoshi Kitaoka 2011 (July 5)




The sky blue indicated by an arrow is the same color as the bluish green filled in the rectangle shown at top right.

Copyright Akiyoshi .Kitaoka 2006 (March 20)

The original picture. The sky blue indicated by an arrow is the same color as the dark blue filled in the rectangle shown at top right.

Copyright Akiyoshi .Kitaoka 2006 (March 20)

The yellow indicated by an arrow is the same color as the dark brown filled in the rectangle shown at top right.

Copyright Akiyoshi .Kitaoka 2006 (March 20)

Nampu express, Okayama, Japan, April 3, 2006


Terrific! Prodessor Dale Purves's pages


Top page