File:Dctjpeg.png

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Summary

DescriptionDctjpeg.png	Basis functions of the discrete cosine transformation used by jpeg image file format and various video encoding standards.
Date	25 January 2007 (original upload date)
Source	No machine-readable source provided. Own work assumed (based on copyright claims).
Author	No machine-readable author provided. FelixH~commonswiki assumed (based on copyright claims).

Licensing

I, the copyright holder of this work, release this work into the public domain. This applies worldwide.
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I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

File history

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	Date/Time	Dimensions	User	Comment
current	14:00, 1 April 2017	584 × 584 (4 KB)	Gnash	Optimized file size
	09:50, 21 October 2015	584 × 584 (4 KB)	Avayak	optimized with ZopfliPNG and PNGOUT
	18:37, 24 September 2012	584 × 584 (5 KB)	Devcore	optimized with kraken.io
	20:28, 27 January 2008	584 × 584 (6 KB)	Stephantom	Optimized with PNGOUT.
	16:00, 25 January 2007	584 × 584 (11 KB)	FelixH~commonswiki
	15:56, 25 January 2007	292 × 292 (2 KB)	FelixH~commonswiki	discrete cosine transformaztion used by jpeg