YPbPr

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YP_BP_R is the analog video signal carried by component video cable in consumer electronics. The green cable carries Y, the blue cable carries P_B and the red cable carries P_R.

YP_BP_R (often written YPbPr and also referred to as Y/P_B/P_R, YP_RP_B, P_RP_BY, P_BP_RY, Y/Pb/Pr, YPrPb, PrPbY, PbPrY, Y/R-Y/B-Y, Y(R-Y)(B-Y), Y, R-Y, B-Y) is a color space used in video electronics, in particular in reference to component video cables. YP_BP_R is the analog version of the YC_BC_R color space; the two are numerically equivalent, but YP_BP_R is designed for use in analog systems whereas YC_BC_R is intended for digital video.

Being that people often get tongue-tied trying to say YP_BP_R quickly they are also commonly referred to as Yipper cables.^[1] YP_BP_R is commonly called "component video", but this is a misnomer, as there are many other types of component video (the most common is RGBHV or RGB/HV, aka VGA / D-SUB).

YP_BP_R is converted from the RGB video signal, which is split into three components, Y, P_B, and P_R.^[2]

• Y carries luma (brightness) information.
• P_B carries the difference between blue and luma (B − Y).
• P_R carries the difference between red and luma (R − Y).

A green signal is not sent as the colour can be interpolated using the blue, red and luma information. This is done to save bandwidth.

See the YC_BC_R page for the defining equations.

Some video cards come with Video In Video Out (VIVO) ports for connecting to component video devices.

[edit] References

1. ^ High-Def Terminology at Amazon.com
2. ^ Even Powell (2001-02-26). So what is "Component Video" anyway?. ProjectorCentral. Retrieved on 2006-10-31.

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