| Glossary |
4:2:0 A digital compression scheme. For every four samples of luminance taken, two are taken for each color difference signal, but only on every other scan line. (See 4:2:2.)
4:2:2 A digital compression scheme. For every four samples of luminance taken, two are taken for each of the color difference signals.
4:4:4 A digital compression scheme. For every four samples of luminance taken, four are taken for each of the color difference signals.
Active Video The portion of the video signal that contains program material.
Additive Color System The color system in which adding all colors together produces white. It is an active color system in that the object being viewed is generating the visible light as opposed to reflecting ...
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