Re: New SMPTE Standard Document For Viewing Environment Is Out

Re: New SMPTE Standard Document For Viewing Environment Is Out

Home Forums Marketing/Business/Software/Info New SMPTE Standard Document For Viewing Environment Is Out Re: New SMPTE Standard Document For Viewing Environment Is Out

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From ITU-R BT.2100-0-(07/2016) ‘Image parameter values for high dynamic range television for use in production and international programme exchange,’ page 3

Table 3 specifies parameters to establish a reference viewing environment for critical viewing of HDR programme material or completed programmes that can provide repeatable results from one facility to another when viewing the same material. Viewing facilities can and will continue to be established in many ways by entities involved in editing, colour correction, screening and the like, and the specifications in this Table are not intended to suggest a need for absolute uniformity in such facilities.

TABLE 3
Reference viewing environment for critical viewing of HDR programme material

ParameterValues

Background and Surround (3a)– Neutral grey at D65
Brightness of background– 5 cd/m2
Brightness of surround– ≤ 5 cd/m2
Ambient lighting– Avoid light falling on the screen
Viewing distance (3b)– For 1920 x 1080 format: 3.2 picture heights
–For 3840 x 2160 format: 1.6 to 3.2 picture heights
–For 7680 x 4320 format: 0.8 to 3.2 picture heights
Peak luminance of display(3c)– ≥ 1000 cd/m2
Minimum luminance of display (black level)(3d)– ≤ 0.005 cd/m2

NOTE 3a – Background and Surround are defined in CIE 159:2004 “A Colour Appearance Model for Colour Management Systems: CIECAM02”.
NOTE 3b – When picture evaluation involves resolution, the lower value of viewing distance should be used. When resolution is not being evaluated, any viewing distance in the indicated range may be used.
NOTE 3c – This is not to imply this brightness must be achieved for full screen white, rather for small area highlights.
NOTE 3d – Actual black level would be set using a PLUGE signal and may differ from the indicated value.