Method and apparatus for the extraction of luminance information

Details Method and apparatus for the extraction of luminance information Method and apparatus for the extraction of luminance information

1986-07-15

1987-09-22

Shepperd, John W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

H04N 978

Patent

active

046958762

ABSTRACT:
A method and apparatus for the extraction of luminance information from an analog composite video signal. Non-luminance information in the video signal is 180.degree. out of phase between adjacent lines in adjacent fields of a video signal. Appropriately filtered adjacent fields are summed to cancel non-luminance information, leaving the desired luminance information. A field store is employed to allow the summing of adjacent fields by storing the present field to be summed with the next field of the video signal.

REFERENCES:
patent: 4291331 (1981-09-01), Devereux

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