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Dctjpeg.png (584 × 584 pixels, file size: 4 KB, MIME type: image/png)
Summary
| 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
|
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
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | 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 |
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