+
+ The basis matrix for converting RGB to YPbPr is:
+
+mRgb2YPbPr = r =
+
+ 0.299000 0.587000 0.114000 1.0000
+ -0.168736 -0.331264 0.500000 x 0.0000
+ 0.500000 -0.418688 -0.081312 0.0000
+
+
+
+ Note that YUV and YPbPr are not the same.
+ * YUV is used for analog transfer of PAL/NTSC
+ * YPbPr is used for analog transfer of YCbCr sources
+ like DVD/DVB.
+ It does _not_ matter for the Vectorscope what color space
+ the input video is; The used color space is just a tool
+ to visualize the hue. The difference is merely that the
+ scope looks slightly different when choosing the respectively
+ other color space; The way the Vectorscope works stays the same.
+
+ YCbCr is basically YPbPr for digital use (it is defined
+ on a range of {16,219} for Y and {16,240} for Cb/Cr
+ components).
+
+
+
+