Composite video


A video signal in which the luminance and chrominance elements have been combined in an encoder, as in NTSC, PAL and SECAM. Allows for the economical broadcasting of video.

Luminance and chrominance are combined using one of the coding standards — PAL, NTSC and SECAM — to make composite video. The process, which is an analogue form of video compression, restricts the bandwidths (image detail) of components.

Chrominance is added to the luminance using a visually acceptable technique but it becomes difficult, if not impossible, to accurately reverse the process (decode) into pure luminance and chrominance. This can cause problems, especially in post production.



Kodak: A Concise Glossary for the Non-Technician
Pank, B., Editor, 1998, The Digital Factbook, 9th Ed, Quantel, Newbury, UK