Video effects generator
Chroma keying system
Key signal generating apparatus for digital chromakey system Patent #: 4533937
ApplicationNo. 06/712244 filed on 03/15/1985
US Classes:348/587Including hue detection (e.g., chroma key)
ExaminersPrimary: Masinick, Michael A.
Attorney, Agent or Firm
International ClassH04N 9/75 (20060101)
Foreign Application Priority Data1984-03-15 JP
AbstractThe digital chromakey system filters out a color signal from a first digital color-television signal and produces a chromakey signal which is combined with the first digital color-television signal to cancel out the color portion. The chromakey signal is also combined with a second color-television signal so that the second color television signal can be inserted into the first color-television signal whose color portion was cancelled.