#NTSC Legal Colors
Rick:
>> You lost me when you started talking about "black levels". How does this
>> relate to my question about NTSC legal colors?
0,0,0 black is an illegal NTSC color. It actually falls below the bottom
threshold, and starts to conflict with other information required by NTSC
that is stored in that area…
The technical way of putting it is that a black video signal is defined at
a level of 7.5IRE (0.05V) above the blanking level. This value, also called
the pedestal, must be above the range containing the synchronizing
information, or your system will get seriously confused!
Greg Pyros