File:Checker shadow illusion.svg

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Original file (SVG file, nominally 948 × 721 pixels, file size: 12 KB)

Captions

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An optical illusion by H. A. Square A is exactly the same shade as Square B.

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Summary

[edit]
Description
English: The checker shadow illusion, originally published by en:Edward H. Adelson. Square A is exactly the same shade of grey as square B.
Date
Source Own work
Author Original: Edward H. Adelson, vectorized by Pbroks13.
SVG development
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This vector image was created with Inkscape.

Licensing

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I, the copyright holder of this work, hereby publish it under the following license:
w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.

File history

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Date/TimeThumbnailDimensionsUserComment
current04:37, 14 December 2018Thumbnail for version as of 04:37, 14 December 2018948 × 721 (12 KB)Pbrks (talk | contribs)again
04:29, 14 December 2018Thumbnail for version as of 04:29, 14 December 2018948 × 721 (12 KB)Pbrks (talk | contribs)attempting to pass validator
04:25, 12 December 2018Thumbnail for version as of 04:25, 12 December 2018948 × 721 (12 KB)Pbrks (talk | contribs)shadows
04:23, 12 December 2018Thumbnail for version as of 04:23, 12 December 2018948 × 721 (12 KB)Pbrks (talk | contribs)shadows
23:03, 11 December 2018Thumbnail for version as of 23:03, 11 December 2018948 × 721 (12 KB)Pbrks (talk | contribs)shadows
22:42, 11 December 2018Thumbnail for version as of 22:42, 11 December 2018948 × 721 (8 KB)Pbrks (talk | contribs)shadows
22:27, 11 December 2018Thumbnail for version as of 22:27, 11 December 2018948 × 721 (8 KB)Pbrks (talk | contribs)shadows
22:22, 11 December 2018Thumbnail for version as of 22:22, 11 December 2018948 × 721 (8 KB)Pbrks (talk | contribs)User created page with UploadWizard

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