REC. 2100 HLG
The Rec. 2100 HLG is registered in Color by default
Properties
Name: rec2100-hlg
White Point: D65 / 2˚
Coordinates:
| Name | Range |
|---|---|
r | [0, 1] |
g | [0, 1] |
b | [0, 1] |
CIE 1931 xy Chromaticity – Rec. 2100 Chromaticities (Same as Rec. 2020)
BT.2100, more commonly known by the abbreviations Rec. 2100 or BT.2100, introduced high-dynamic-range television (HDR-TV) by recommending the use of the perceptual quantizer (PQ) or hybrid log–gamma (HLG) transfer functions instead of the traditional "gamma" previously used for SDR-TV. Rec. 2100 HLG specifically uses the hybrid log-gamma transfer function.
The actual gamut of Rec. 2100 uses the same wide color gamut of Rec. 2020, but the color space itself supports an HDR range.
Channel Aliases
| Channels | Aliases |
|---|---|
r | red |
g | green |
b | blue |
Input/Output
Parsed input and string output formats support all valid CSS forms:
color(rec2100-hlg r g b / a) // Color function
When manually creating a color via raw data or specifying a color space as a parameter in a function, the color space name is always used:
Color("rec2100-hlg", [0, 0, 0], 1)
The string representation of the color object and the default string output will be in the color(rec2100-hlg r g b / a) form.
>>> Color("rec2100-hlg", [0.65587, 0.23436, 0.11415], 1)
color(rec2100-hlg 0.65587 0.23436 0.11415 / 1)
>>> Color("rec2100-hlg", [0.69294, 0.56608, 0.19838], 1).to_string()
'color(rec2100-hlg 0.69294 0.56608 0.19838)'
Registering
from coloraide import Color as Base
from coloraide.spaces.rec2100_hlg import Rec2100HLG
class Color(Base): ...
Color.register(Rec2100HLG())