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Adjust colour opposition contrast with FFmpeg colorcontrast
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What this guide covers
For editors who want a subtle grade that separates colours by weighting the red-cyan, green-magenta and blue-yellow axes. You end with a clip adjusted per axis with lightness preserved. Based on the FFmpeg manual and not run, and the manual gives no example for this filter.
More about this guide
Guide ID: art_01M6VS1AETSJVP0WHYCFD1KC1B
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Guide title
Adjust colour opposition contrast with FFmpeg colorcontrast
Coverage
For editors who want a subtle grade that separates colours by weighting the red-cyan, green-magenta and blue-yellow axes. You end with a clip adjusted per axis with lightness preserved. Based on the FFmpeg manual and not run, and the manual gives no example for this filter.
Example
A hypothetical warm skin shot comparing a small positive and negative red-cyan value; nothing was run, so the better direction is unknown.
Useful starting points
- If nothing changes, check the weights: with all weights at 0.0 the filter is disabled, so an axis value alone has no effect.
- If the picture looks darker or brighter, raise the lightness-preservation amount.
- Change one axis at a time and compare against the source.
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