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Reduce a colour cast with FFmpeg grayworld and greyedge
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What this guide covers
For editors with footage tinted by the light source who want an automatic white-balance style fix. It covers the manual's grayworld route in linear light and the two greyedge variants, plus how to compare them. Based on the FFmpeg manual only; no command was run.
More about this guide
Guide ID: art_01M6W2JDN150Q509BF6KX42TB0
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Guide title
Reduce a colour cast with FFmpeg grayworld and greyedge
Coverage
For editors with footage tinted by the light source who want an automatic white-balance style fix. It covers the manual's grayworld route in linear light and the two greyedge variants, plus how to compare them. Based on the FFmpeg manual only; no command was run.
Example
A hypothetical tungsten-lit shot where both routes are compared on how neutral a white wall looks; nothing was run and no result was seen.
Useful starting points
- Automatic filters can mistake a dominant real colour for a cast; if the scene turns an odd colour, correct manually or try the other filter.
- Odd or washed colours from grayworld usually mean the input was not linearized first.
- Judge the result on an object that should be neutral, and compare against the source.
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