YPbPr Advantages
YPbPr 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 100% able to separate the signals. It is possible for their multiplexed counterparts to interfere with each other (see Dot crawl). Signals that use YPbPr, like component video, offer enough separation of the signals that no multiplexing is needed, so the quality of the extracted image is generally near identical to the signal before encoding. Though not necessarily an advantage to YPbPr, component video which uses YPbPr 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.
Definition of: YPbPr
The designation for analog component video signals. The "Y," "Pb" and "Pr" are sets of three inputs or outputs on better video equipment and TVs. The three cables used in a YPbPr connection represent higher quality than the single-wire composite cable commonly used to hook up video equipment, because the brightness and color components of the signal are maintained separately. The YPbPr signals are derived from the red, green and blue (RGB) colors captured by a scanner or digital camera, and RGB is converted into brightness and two color difference signals (B-Y and R-Y) for TV/video. See component video.
YPbPr and YCbCr
YPbPr component video is the analog counterpart of digital component video, which is YCbCr. Whereas YPbPr uses three cables between video equipment, YCbCr uses a single cable. See Y (B-Y) (R-Y), YCbCr, YUV, YUV/RGB conversion formulas and color space.
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