All effects and presets

Effect

Rgb Gain Gamma

Per-channel gain and gamma for precise RGB grading.

Per-channel gain and gamma are finishing controls with broadcast roots. Gain tilts a channel's strength; gamma bends its midtones. Together they offer precise RGB shaping without a full matrix.

Useful for cleaning colour casts and for slight cinematic imbalances.

Rgb Gain Gamma example
Example

Properties

  • (red midpoint, green midpoint, blue midpoint)

    Range
    0, 0, 0 to 1, 1, 1
    Default
    0, 0, 0

  • (red gain, green gain, blue gain)

    Range
    0, 0, 0 to 5, 5, 5
    Default
    0.815, 1, 1

  • (red gamma, green gamma, blue gamma)

    Range
    0.2, 0.2, 0.2 to 5, 5, 5
    Default
    1, 0.911, 1

Command line

Requires Rethings Pro. Install the tool from Rethings → Install Command Line Tool… 

rethings apply --effect rgb-gain-gamma --set midpoint=0,0,0 --set gain=0.815,1,1 -i input.jpg -o output.png

Gallery

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