Science Fair Project Encyclopedia
YDbDr
YDbDr is the colour space used in the SECAM colour television broadcasting standard, which is used in France and some countries of the former Eastern Bloc. Y is the luminance, and Db and Dr are the red and blue colour differences. These are related to the RGB colour space as follows.
Y = + 0.299R + 0.587G + 0.114B Db = + 1.505(B - Y) = - 0.450R - 0.883G + 1.333B Dr = - 1.902(R - Y) = - 1.333R + 1.116G + 0.217B
Db and Dr are related to the U and V components of the YUV colour space as follows.
Db = + 3.059U Dr = - 2.169V
There is also a variety of the PAL broadcasting standard, PAL-N, that uses the YDbDr colour space.
12-03-2008 10:22:39
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details