File:Grey square optical illusion.PNG
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Size of this preview: 772 × 599 pixels. Other resolutions: 309 × 240 pixels | 618 × 480 pixels | 773 × 600 pixels | 989 × 768 pixels | 1,087 × 844 pixels.
Original file (1,087 × 844 pixels, file size: 143 KB, MIME type: image/png)
| This is a featured picture, which means that members of the community have identified it as one of the finest images on the English Wikipedia, adding significantly to its accompanying article. If you have a different image of similar quality, be sure to upload it using the proper free license tag, add it to a relevant article, and nominate it. |
| This image was selected as picture of the day on the English Wikipedia for November 5, 2004, February 19, 2005, and December 16, 2005. |
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 10:20, 24 May 2016 | 1,087 × 844 (143 KB) | Avayak | optimized losslessly | |
| 21:13, 13 January 2008 | 1,087 × 844 (159 KB) | Mahahahaneapneap | pngcrushed | ||
| 03:54, 24 April 2007 | 1,087 × 844 (214 KB) | Jrockley | much larger version | ||
| 00:41, 9 April 2007 | 522 × 408 (70 KB) | Jrockley | Prepared for Wikipedia by Adrian Pingstone in January 2004, based on the [http://web.mit.edu/persci/people/adelson/checkershadow_illusion.html original] created by Edward H. Adelson. See also [http://en.wikipedia.org/wiki/Same_color |
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The following pages on the English Wikipedia link to this file (pages on other projects are not listed):
- Cognitive science
- Color constancy
- Hypocrisy
- Illusion
- Talk:Flag of Poland/Archive 1
- Talk:Quark/Archive 3
- User:Baccyak4H/top
- User:Cyde/Featured pictures
- User:Kevswaff
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- User:Randfan/Optical Illusions I like
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- User:The Obento Musubi/Featured picture/2008/04
- User:Vesmaluza
- Wikipedia:Featured picture candidates/delist/2007
- Wikipedia:Featured picture candidates/delist/2010
- Wikipedia:Featured picture candidates/delist/Grey square optical illusion
- Wikipedia:Featured picture candidates/delist/Image:Optical.greysquares.arp.jpg
- Wikipedia:Featured pictures/Diagrams, drawings, and maps/Drawings
- Wikipedia:Featured pictures thumbs 01
- Wikipedia:POTD/December 16, 2005
- Wikipedia:POTD/February 19, 2005
- Wikipedia:POTD/November 5, 2004
- Wikipedia:Picture of the day/December 16, 2005
- Wikipedia:Picture of the day/December 2005
- Wikipedia:Picture of the day/February 19, 2005
- Wikipedia:Picture of the day/February 2005
- Wikipedia:Picture of the day/November 2004
- Wikipedia:Picture of the day/November 5, 2004
- Wikipedia:Reference desk/Archives/Science/2008 February 5
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