File:Ringing artifact example.png
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Ringing_artifact_example.png (240 × 180 pixels, file size: 10 KB, MIME type: image/png)
Summary
| Description |
English: An illustration of ringing artifacts, showing a quarter-circle of light gray on dark gray with 3 levels of artifacts on each side (overshoot, ring 1, ring 2).
Produced by taking the original image (a single sharp transition, without artifacts), then upscaling by 2× via a Lanczos-3 filter, sharpening via unsharp masking (radius 1, amount 10 (1000%), then upscaling again by 2× with Lanczos-2. |
| Date | |
| Source |
Own work |
| Author | Nils R. Barth |
| Other versions | File:Ringing artifact example - original.png – original, without artifacts. |
Licensing
 
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This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication. |
| The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighbouring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 06:22, 24 May 2010 | | 240 × 180 (10 KB) | wikimediacommons>Nbarth | {{Information |Description={{en|1=An illustration of ringing artifacts, showing a quarter-circle of light gray on dark gray with 3 levels of artifacts on each side (overshoot, ring 1, ring 2). Produced by taking the original ima |
File usage
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