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Reducing banding in smooth gradients with FFmpeg gradfun for playback
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What this guide covers
For editors and video makers who see visible steps in skies or walls and want to preview a cleaner look with FFmpeg's gradfun filter. You end up with chosen settings and a way to compare lossless stills. Based on the FFmpeg manuals only and not run; it does not fix banding in a file you deliver.
More about this guide
Guide ID: art_01M6VV9DQ4CSSKPCQ1KSZW4CA8
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Guide title
Reducing banding in smooth gradients with FFmpeg gradfun for playback
Coverage
For editors and video makers who see visible steps in skies or walls and want to preview a cleaner look with FFmpeg's gradfun filter. You end up with chosen settings and a way to compare lossless stills. Based on the FFmpeg manuals only and not run; it does not fix banding in a file you deliver.
Example
A hypothetical sunset-sky clip, not run: compare the default setting against one stronger setting on the same frame, looking at the flat sky and at detailed edges nearby.
Useful starting points
- The manual calls this filter playback-only; compression tends to bring the bands back, so it is not a step before a lossy export.
- Values outside the documented range are clipped to the nearest limit, so the setting you typed may not be the one applied.
- Compare stills made the same way at 100 percent zoom, and check that both show the same frame.
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