BT.2020

Reference Name: ITU-R BT.2020

Definition: ITU-R Recommendation BT.2020 (2015)

Responsible Organization: International Telecommunication Union.

Contact Information:
ICC Technical Secretary
email: green@colourspace.net

DOCUMENTATION

Documentation source ITU-R BT.2020 : Parameter values for ultra-high definition television systems for production and international programme exchange. .

Also see ITU-R BT.2087-0 Colour conversion from Recommendation ITU-R BT.709 to Recommendation ITU-R BT.2020

ENCODING CHARACTERISTICS

Color space

Type: Colorimetric RGB color space

Color gamut: extended (ITU-R BT.2020)
RGB primaries:
      x 	  y 	  z
R 	0.708 	0.292 	0.0
G 	0.17 	0.797 	0.033
B 	0.131 	0.046 	0.823

Color component transfer function: C'= C1/2.4
NOTE: The reference electro-optical transfer function for a Rec.2020 display is defined in ITU-R BT.1886. Some implementors use the inverse of the OETF as defined in BT.2020 (BT.2087 case #2) in place of ITU-R BT.1886.

White point luminance: variable
NOTE: The 10-bit signal level that should be measured for the display peak white, "super white" and black are defined in EBU 3325

White point chromaticity: x = 0.3127, y = 0.3290 (D65)

Encoding

Range: linear RGB: 0.0 to 1.0

Bit depth: 10 or 12

Image state: Output-referred

Reference viewing environment

Viewing surround: ratio of luminance of background behind picture monitor to peak luminance of picture: = between 10% ± 2% of reference white value

Ambient illuminance: 10 lux

Background chromaticity: x = 0.3127, y = 0.3290 (D65)
NOTE: background chromaticity is optionally D93 in some regions

Reference medium

White point luminance: unspecified

White point chromaticity: x = 0.3127, y = 0.3290 (D65)

Black point luminance: unspecified

Black point chromaticity: unspecified
