NTNUJAVA Virtual Physics Laboratory
Enjoy the fun of physics with simulations!
Backup site http://enjoy.phy.ntnu.edu.tw/ntnujava/

Easy Java Simulations (2001- ) => illusion => Topic started by: Fu-Kwun Hwang on January 03, 2011, 11:03:32 am



Title: illusion: Two identical color dots?
Post by: Fu-Kwun Hwang on January 03, 2011, 11:03:32 am
Are those two dots the same color?

Try to drag the above rectangle blocks down (with mouse drag and drop)
 and check out the color for those two dots again. Are they the same now?

[ejsapplet]

P.S. http://en.wikipedia.org/wiki/Chubb_illusion
The Chubb illusion is an optical illusion wherein the apparent contrast of an object varies dramatically, depending on the context of the presentation. Low-contrast texture surrounded by a uniform field appears to have higher contrast than when it is surrounded by high-contrast texture. This was observed and documented by Charles Chubb and colleagues in 1989