这张图的白色三角形看上去像是叠在蓝边三角形上面的,但是仔细一研究,白三角形的边就消失了,因为其亮度与背景白色的亮度是相同的。在下图中当蓝色和白色以相同的亮度展示相同的图形时,对大多数人来说这一错觉就不再起作用了,这大概是因为大脑的轮廓检测细胞对某些颜色是无法分辨的。
http://jifanghua.blogbus.com/logs/2004/02/84111.html


Add a comment...
Your name:
Your e-mail:





About 23

About 23
What is 23 and who's behind the service?
Just In
Discover the world from a different angle.
Here's a crop of the latest photos from the around the world.
Search
Search photos from users using 23
Help / Discussion
Get help or share your ideas to make 23 better
23 Blog / 23 on Twitter
Messages and observations from Team 23
Terms of use
What can 23 be used for and what isn't allowed
More services from 23
We also help people use photo sharing in their professional lives
  • Basque (ES)
  • Bulgarian (BG)
  • Chinese (CN)
  • Chinese (TW)
  • Danish (DK)
  • Dutch (NL)
  • English (US)
  • French (FR)
  • Galician (ES)
  • German (DE)
  • Italian (IT)
  • Norwegian (NO)
  • Polish (PL)
  • Portuguese (PT)
  • Russian (RU)
  • Spanish (ES)
  • Swedish (SE)

Popular photos right now