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Make grayscale, sepia or custom channel mixes with FFmpeg colorchannelmixer
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What this guide covers
For editors who want a grayscale or sepia look, or their own colour channel mix, from one FFmpeg filter. You end with the filter strings and the arithmetic behind them. Based on the FFmpeg manual; no command was run and no picture was inspected.
More about this guide
Guide ID: art_01M6VJS0YQE8PBGBG1H50KN8MF
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Guide title
Make grayscale, sepia or custom channel mixes with FFmpeg colorchannelmixer
Coverage
For editors who want a grayscale or sepia look, or their own colour channel mix, from one FFmpeg filter. You end with the filter strings and the arithmetic behind them. Based on the FFmpeg manual; no command was run and no picture was inspected.
Example
A hand-worked pixel (red 100, green 200, blue 50) through the grayscale weights giving 125; this is arithmetic, not a rendered result.
Useful starting points
- With all default coefficients the filter changes nothing, so set at least one value.
- Keep every coefficient between -2.0 and 2.0 or the filter will reject it.
- Leave the alpha terms at their defaults to avoid unexpected transparency changes.
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