
136 Chapter 6
The CTA and ITU-R plus H.265 documents are
available freely online, searchable on Google.
ITU-R Rec BT.2020 denes a new televi-
sion specication wide gamut color space, with a
resolution of 3840 × 2160, an EOTF of SMPTE
ST2084 and peak luminance levels of (either) more
than 1,000 nits, black level less than 0.05 nits, (or)
a peak luminance more than 540 nits and black
level of less than 0.0005 nits for a new UHDTV
system.ITU-R BT.2020 species the color prima-
ries, white point, for UHD, the EOTF is ITU-R
BT.1886 same as 709 (approximately gamma =
2.4). ITU-R ...