File:Hanover bars with PAL delay.png
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Hanover_bars_with_PAL_delay.png (768 × 576 pixels, file size: 109 KB, MIME type: image/png)
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Summary
| Description |
English: A simulation of severe phase errors in PAL color decoding shown applied to a PM5544 test pattern. In this example the chroma delay line is enabled, cancelling out the phase errors and suppressing Hanover bars. The outermost columns of the test pattern contain color signals that do not alternate phase between lines unlike a normal PAL signal; if the phase is correct those signals will have complementary color from line to line, and cancel out if a delay line is present. In this case, they reveal the phase error through discoloration. |
| Date | |
| Source | Own work |
| Author | Zacabeb |
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
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 21:56, 28 March 2010 | | 768 × 576 (109 KB) | Zacabeb | Remade as a Y/C signal to remove cross-color and dot crawl, as they may cause confusion. |
| 18:09, 15 May 2009 |  | 768 × 576 (232 KB) | Zacabeb | PAL delay corrected; previous version had the delay applied in the wrong direction. | |
| 17:10, 15 May 2009 |  | 768 × 576 (231 KB) | Zacabeb | More reasonable chroma phase error (approx 30°) than in previous version, saturation left unmodified. | |
| 14:12, 15 May 2009 |  | 768 × 576 (188 KB) | Zacabeb | {{Information |Description={{en|1=A simulation of severe phase errors in PAL color decoding shown applied to a PM5544 test pattern. In this example the chroma delay line is enabled, cancelling out the phase errors and suppressing Hanover bars. The outermo |
File usage
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Global file usage
The following other wikis use this file:
- Usage on hu.wikipedia.org
- Usage on pl.wiktionary.org
