2011

To:Use:
Set the range of pixels to key based on the threshold range.Key
Set the range of the pixels to key. Increasing the threshold removes less
prevalent pixels from the composition.
Threshold
Soften the edge of the key.Softness
NOTE Key, Threshold, and Softness are animatable attributes—see Marking
Attributes for Keyframing
on page 674.
Removing Color Spill with Color Curves
Color Curves lets you remove color spill by either suppressing a sampled color,
by modifying the red, green, blue, or hue, by modifying the saturation or by
modifying the luminance of the selected color, or by shifting the hue of a
color range to a sampled hue shift target. Each curve in Color Curves is a hue
gradient. When you change the shape of a curve, the colors along the curve's
gradient change to reflect the result. For example, if your hue shift target is
magenta, as you raise the green portion of the default hue shift curve, it
gradually becomes magenta, becoming fully magenta when you reach the full
value (75%).
Because the Color Curves affects the RGB and is applied to the output of a
keyer tool, your process tree should include as a minimum, a source and a
keyer.
While working on RGB, you can:
■ Shift the hue of a color range to a sampled hue shift target.
■ Suppress a sampled color.
■ Modify R, G, B, saturation, and luma.
The Color Curves UI is divided into three areas.
Removing Color Spill with Color Curves | 519