Checking Gamut
Example of an Arrowhead display.
Checking RGB Gamut
The Diamond display intuitively shows how
the R, G, and B signal video signals relate,
making it a good tool for detecting gamut
errors. The waveform monitor converts the
Y, P
b,
and P
r
components recovered from
the serial signal to R, G, and B to form the
Diamond display. To predictably display all
three components on a monitor, they must lie
between peak white, 700 mV, and black, 0 V.
For a signal to be in gamut, all signal vectors
must lie within the G-B and G-R diamonds.
Conversely, if a signal vector extends outside
the diamond, it is out of gamut. The direction
of an excursion out of gamut indicates which
signal is excessive. Errors in green amplitude
affect both diamonds equally, blue amplitude
errors affect only the top diamond, and red
errors affect only the bottom diamond.
Quick Start User Manual
107
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com