
Table 22.2
NTSC primaries
(obsolete) were once used in
480i SDTV systems, but have
been superseded by SMPTE
RP 145 and Rec. 709 primaries.
EBU Tech. 3213,
EBU standard for
chromaticity tolerances/or studio
monitors
(Geneva: European
Broadcasting Union, 1975; reis-
sued 1981).
Table 22.3
EBU Tech. 3213
primaries
apply to 576i
SDTV systems.
different from those "on the books:' So although you
may see the NTSC primary chromaticities docu-
mented- even in contemporary textbooks, and in stan-
dards for image exchange! - they are of absolutely no
practical use today. I inclucle them in Table 22.2, so
you'll know what ...