Composite Choker

The BCC Composite Choker filter allows the user to contract or expand the
edges of a matte to bring them closer to or farther from the foreground. Two
Choke controls allow you to smoothly adjust the matte, while Region Parameter
controls allow you  to define a specific reagin of interest with which to
apply the filter.

To learn more about this filter, and see a breakdown of the various controls,
please click here.