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Implement letterbox-only blackbar detection mode (#1063)

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Peter Eskdale
2020-11-01 18:20:27 +00:00
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parent 958975975c
commit 85a55de28c
7 changed files with 52 additions and 4 deletions
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docs/docs/en/user/advanced/Advanced.md
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@@ -93,6 +93,7 @@ Explain the differences between the available modes for blackbar detection.
* **Default:** 3 scanlines in each direction (X Y) - fastest detection
* **Classic:** The original implementation - lower cpu time (legacy for RPi 1) just scan the top one third of the picture which leads to a slow detection and trouble with TV channel logo.
* **OSD:** Based on the default mode - not that effective but prevents border switching which may caused of OSD overlays (program infos and volume bar).
* **Letterbox:** Based on the default mode - only considers blackbars at the top and bottom of the picture, ignoring the sides.
<ImageWrap src="/images/en/user_bbmodes.jpg" alt="Hyperion Blackbar detection modes" />
## Gamma Curve