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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.]]
is a
color space used in
video electronics, in particular in reference to
component video cables. is the
analog version of the
YCBCR 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.
Because people often get tongue-tied trying to say quickly they are also commonly referred to as Yipper cables. is commonly called "component video", but this is imprecise, as there are many other types of component video (mostly RGB with sync either on green or one or two separate signals).
Some video cards come with Video In Video Out (VIVO) ports for connecting to component video devices.
Technical details
is converted from the
RGB video signal, which is split into three components, Y, P
B, and P
R.
Y carries luma (brightness or luminance) and synchonization (sync) information.
PB carries the difference between blue and luma (B − Y).
PR carries the difference between red and luma (R − Y).
Sending a green signal would be redundant, as it can be derived using the blue, red and luma information.
cables and composite video cables can be used interchangeably. This means that the yellow RCA connector cable commonly packaged with most audio/visual equipment can be used in place of the connectors, provided the end user is careful to keep track of the device functions (i.e. connect any one of the individual functions to the corresponding function on the other end using any cable colour).
Advantages
is a color space encoding scheme that was developed to save on cable bandwidth requirements while separating the signal enough to provide a quality image.
S-Video and
composite video mix the signals together by means of electronic
multiplexing, however, more often than not the signal is degraded at the display end as the display is not able to separate the signals completely. It is possible for their multiplexed counterparts to interfere with each other (see
dot crawl).
Signals that use , like component video, offer enough separation of the signals that no multiplexing is needed, so the quality of the extracted image is generally nearly identical to the signal before encoding.
Though not necessarily an advantage to , component video which uses was the only one out of the other two common analog cable standards (composite and S-Video) to be able to transfer non-
interlaced video and at the same time able to transfer resolutions higher than 480i/p.
References
External links
Color FAQ, Charles Poynton
Color formats for image and video processing - Color conversion between RGB, YUV, YCbCr and YPbPr.
Category:Color space
Category:Video signal
![[PS3] Test de qualité EzCap148 pro - YUV/ YPbPr/ COD: Modern Warfare 2](http://web.archive.org./web/20110905064415im_/http://i.ytimg.com/vi/TUUVskTew4c/0.jpg "[PS3] Test de qualité EzCap148 pro - YUV/ YPbPr/ COD: Modern Warfare 2")
