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– Medium: This works best for green screens.
– Well Done: This works best for blue screens.
– Burnt: This works best for blue screens. Use this mode only for very troublesome shots.
Fringe Gamma
This control can be used to adjust the brightness of the fringe or halo that surrounds the keyed image.
Fringe Size
This expands and contracts the size of the fringe or halo surrounding the keyed image.
Fringe Shape
Fringe Shape presses the fringe toward the external edge of the image or pulls it toward the inner
edge of the fringe. Its effect is most noticeable while the Fringe Size value is large.
Cyan/Red, Magenta/Green, and Yellow/Blue
Use these three controls to color correct the fringe of the image.
This is useful for correcting semitransparent pixels that still contain color from the original background
to match the new background.
The Ultra Keyer Matte tab
Matte Tab
The Matte tab refines the alpha of the key, combined with any solid and garbage masks connected to
the node. When using the Matte tab, set the viewer to display the alpha channel of the Delta Keyer’s
final output.
Filter
This control selects the filtering algorithm used when applying blur to the matte.
– Box: This is the fastest method but at reduced quality. Box is best suited for minimal
amounts of blur.
– Bartlett: Otherwise known as a Pyramid filter, Bartlett makes a good compromise between speed
and quality.
Chapter 107Matte Nodes 2113
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