Effects > Colour Corrector > Colour Correcting from the Main Menu > 
Suppressing Colours
 
 
 

You can suppress the RGB or CMYw colours in an image. Chroma suppression is useful for removing blue spill from a blue-screen composite.

To suppress a colour:

  1. Click Master.
    NoteChroma suppression can only be applied to the Master tonal range.
  2. Enable the appropriate button for the colour to suppress.

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    Enable: To suppress:
    R Red
    G Green
    B Blue
    C Cyan
    M Magenta
    Yw Yellow

    The status box on the button is light blue when the button is enabled.

    NoteSuppression of RGB and CMYw always reduces luma.