Illusions observed outdoors #4
since February 10, 2009
"Composite photograph illusion"
The upper half appears to be a photo different from the lower half, though this image is a single photograph.
Copyright Akiyoshi Kitaoka 2009 (October 4)
photo taken on September 30, in Sydney
Akiyoshi's first visit to Australia
"The checker-shadow illusion in a real floor"
A appears to be darker than B in the middle photo, but A is actually brighter in luminance than B as shown in the rightmost image.
Copyright hisa and Akiyoshi Kitaoka 2009 (May 27)
Original photo from hisa, Japan, May 26, 2009
Checker-shadow illusion (Professor Adelson's webpage, MIT)
"Kariburo"
This fractal vegetable "romanesco" looks like an illusion image.
Copyright Yoshiko Oishi 2009 (February 10)
from Yoshiko Oishi, Japan, February 10, 2009
