Apple Final Cut Pro 6 - Manual (Page 1317)

532 Part III Color Correction and Video Quality Control
RGB Limit Filter Controls
The following section describes the controls in the RGB Limit filter.
Minimum RGB Limiting Controls
 Enable: Select or deselect the checkbox to enable or disable RGB clamping below
the Clamp Levels Below parameter value.
 Clamp Levels Below: Set a value to define the minimum allowable RGB levels. RGB
levels below this parameter value are clamped to this value.
Maximum RGB Limiting Controls
 Enable: Select or deselect the checkbox to enable or disable RGB clamping above
the Clamp Levels Above parameter value.
 Clamp Levels Above: Set a value to define the maximum allowable RGB levels. RGB
levels above this parameter value are clamped to this value. For example, suppose
your image has RGB-equivalent levels of 115 percent, 110 percent, and 105 percent. If
you set this slider to 105 percent, the RGB levels are set to 105 percent, 105 percent,
and 105 percent.
Maximum RGB Reduction Controls
 Enable: Select or deselect the checkbox to enable or disable chroma desaturation,
luma reduction, or both, if necessary.
 Desaturate or Darken Levels Above: Applies chroma desaturation, luma reduction, or
both, to bring RGB levels down to the value set here.
Minimum RGB
Limiting controls
Maximum RGB
Reduction controls
Maximum RGB
Limiting controls