| ultra 2 is a chromakeyer, this is an essential part of a virtual set. While the virtual set is the background, ultra 2 is what actually removes the colored background from the source and inserts the virtual set image. The way it works is that ultra 2 looks for the most chrominant color, either blue or green in most cases, and removes it. ultra 2 then tries to compensate for keying artifacts like chroma spill and compression. |
