#NTSC true reds
Don,
I don't like to disagree with you especially in this context, but D1 outputs 8
bit not 10 bit, and second off the max level in D1 is 220,0,0 when RGB is
converted to YUV. 10 bit is only useful in maintaining digital integrity
machine to machine but output is always at 8 bit in accordance with CCIR 601
specs. (Which is why the PVR can potentially have better output than D1 as it
outputs in 10 bit.) FWIW D2 is even worse as it has a maximum or 140. In fact
of the 16 million colors available in 24 bit RGB 40% are illegal when converted
to 24 bit YUV.
More often than not lowering the saturation level will produce better results.
The safest way to determine whether an RGB value is legal or not is to
calculate its luminance and saturation against the limits for the composite
signal.
If anyone's interested I do have a formula.
John