Key Effects
Key effects combine two streams of video using components from one of the streams. Key effects include:
  Chroma Key
  Luma Key
  Matte Key
  RGB Keyer (AVX Plug-in Effect)
See Also
Effect Types

Some features described in Help are available only in Avid Xpress Pro or Avid Xpress DV. For more information about Avid Free DV go to
www.avid.com.