For details of the analog interface, see Component analog HD interface, on page 485.

on page 290: DTV transmission standards call for BT.709, and modern consumer displays use BT.709. However, as I write in 2011, nearly all 50 Hz program material is created and mastered using EBU primaries (see EBU Tech. 3213 primaries, Table 26.4 on

page 293), and nearly all 60 Hz program material is created and mastered using SMPTE primaries (see SMPTE RP 145 primaries, Table 26.5 on page 293).

I expect the situation in mastering to change upon the introduction of new studio display technologies such as OLEDs – but among content creators and broadcasters, old habits die hard.

Luma (Y’)

Luma is computed as a weighted sum of nonlinear R’, G’, and B’ primary components according to the luma coefficients introduced in BT.709 luma, on page 346:

The luma component Y’, being a weighted sum of nonlinear R’G’B’ components, has no simple relationship with the CIE relative luminance (Y) used in colour science. The formulation of luma in HD differs from that of SD; see SD and HD luma chaos, on page 350. Video encoding specifications typically place no upper bound on luma bandwidth.

Component digital 4:2:2 interface

Y’CBCR components are formed by scaling B’-Y’ and R’-Y’ components, as described in CBCR components for BT.709 HD on page 371. The HD-SDI interface is described HD-SDI coding, on page 440.