File:Dctjpeg.png

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Dctjpeg.png (584 × 584 pixels, file size: 4 KB, MIME type: image/png)

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Summary

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Description 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

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Public domain I, the copyright holder of this work, release this work into the public domain. This applies worldwide.
In some countries this may not be legally possible; if so:
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/TimeThumbnailDimensionsUserComment
current14:00, 1 April 2017Thumbnail for version as of 14:00, 1 April 2017584 × 584 (4 KB)Gnash (talk | contribs)Optimized file size
09:50, 21 October 2015Thumbnail for version as of 09:50, 21 October 2015584 × 584 (4 KB)Avayak (talk | contribs)optimized with ZopfliPNG and PNGOUT
18:37, 24 September 2012Thumbnail for version as of 18:37, 24 September 2012584 × 584 (5 KB)Devcore (talk | contribs)optimized with kraken.io
20:28, 27 January 2008Thumbnail for version as of 20:28, 27 January 2008584 × 584 (6 KB)Stephantom (talk | contribs)Optimized with PNGOUT.
16:00, 25 January 2007Thumbnail for version as of 16:00, 25 January 2007584 × 584 (11 KB)FelixH~commonswiki (talk | contribs)
15:56, 25 January 2007Thumbnail for version as of 15:56, 25 January 2007292 × 292 (2 KB)FelixH~commonswiki (talk | contribs)discrete cosine transformaztion used by jpeg

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