File:Checker shadow illusion.svg

Size of the above preview of this SVG file: 960 × 730 pixels. Other resolutions: 330 × 251 pixels | 960 × 730 pixels | 1,280 × 974 pixels | 3,840 × 2,921 pixels.

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

This is a file from the Wikimedia Commons. Information from its description page there is shown below.
Commons is a freely licensed media file repository. You can help.


	This is a featured picture on the English language Wikipedia (Featured pictures) and is considered one of the finest images. See its nomination here. If you think this file should be featured on Wikimedia Commons as well, feel free to nominate it. If you have an image of similar quality that can be published under a suitable copyright license, be sure to upload it, tag it, and nominate it.

Summary

DescriptionChecker shadow illusion.svg	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	11 December 2018
Source	Own work
Author	Original: Edward H. Adelson, vectorized by Pbroks13.
SVG development InfoField	The SVG code is valid. This vector image was created with Inkscape.

Licensing

I, the copyright holder of this work, hereby publish it under the following license:

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

Click on a date/time to view the file as it appeared at that time.

	Date/Time	Dimensions	User	Comment
current	04:37, 14 December 2018	948 × 721 (12 KB)	Pbrks	again
	04:29, 14 December 2018	948 × 721 (12 KB)	Pbrks	attempting to pass validator
	04:25, 12 December 2018	948 × 721 (12 KB)	Pbrks	shadows
	04:23, 12 December 2018	948 × 721 (12 KB)	Pbrks	shadows
	23:03, 11 December 2018	948 × 721 (12 KB)	Pbrks	shadows
	22:42, 11 December 2018	948 × 721 (8 KB)	Pbrks	shadows
	22:27, 11 December 2018	948 × 721 (8 KB)	Pbrks	shadows
	22:22, 11 December 2018	948 × 721 (8 KB)	Pbrks	User created page with UploadWizard