Y, R-Y, B-Y
- A&VColor difference signal designation. Y corresponds to the luminance signal, R-Y corresponds to the red minus luminance signal, and B-Y corresponds to the blue minus luminance signal. These signals are derived as follows:• Y = 0.3 Red + 0.59 Green + 0.1 Blue• R-Y = 0.7 Red + 0.59 Green - 0.1 Blue• B-Y = 0.89 Blue - 0.59 Green - 0.3 Red————————HDTerminology to describe the luminance (Y) and color difference signals (R-Y) and (B-Y) of component video. Y is luminance information and the R-Y and B-Y signals together provide the color information. These signals, derived from the original RGB source, are used in most video systems as a bandwidth reduction technique.
Audio and video glossary. 2014.