YPbPr
From Free net encyclopedia
YPbPr (also referred to as "YPrPb", "PrPbY", and "PbPrY") is a colour space used in video electronics. It is numerically equivalent to the YCbCr colour space, but is designed for use in analogue systems whereas YCbCr is intended for digital video.
See the YCbCr page for the defining equations.