HLG (Hybrid Log-Gamma)
E1046975
HLG (Hybrid Log-Gamma) is an HDR video standard developed for broadcast and live TV that is compatible with standard dynamic range displays while still delivering high dynamic range on supported devices.
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
HDR transfer function
ⓘ
electro‑optical transfer function ⓘ video standard ⓘ |
| abbreviation | HLG NERFINISHED ⓘ |
| advantage | single signal for HDR and SDR displays ⓘ |
| backwardsCompatibleWith | SDR workflows ⓘ |
| belongsToStandardFamily | HDR-TV standards ⓘ |
| category | perceptual transfer function ⓘ |
| comparedWith | PQ (Perceptual Quantizer) NERFINISHED ⓘ |
| compatibleWith |
10‑bit video
ⓘ
12‑bit video ⓘ BT.2020 color gamut NERFINISHED ⓘ standard dynamic range displays ⓘ |
| decodingType | electrical‑to‑optical transfer function for displays ⓘ |
| designedFor |
broadcast television
ⓘ
high dynamic range video ⓘ live TV production ⓘ |
| developedBy |
BBC
NERFINISHED
ⓘ
NHK NERFINISHED ⓘ |
| doesNotRequire |
dynamic metadata
ⓘ
static metadata ⓘ |
| encodingType | optical‑to‑electrical transfer function for cameras ⓘ |
| fullName | Hybrid Log‑Gamma NERFINISHED ⓘ |
| goal | simplify HDR adoption in broadcast ⓘ |
| introducedBy |
BBC R&D
NERFINISHED
ⓘ
NHK Science & Technology Research Laboratories NERFINISHED ⓘ |
| introducedFor | next‑generation TV services ⓘ |
| provides | high dynamic range on supported devices ⓘ |
| regionOfEarlyAdoption |
Japan
NERFINISHED
ⓘ
United Kingdom NERFINISHED ⓘ |
| relatedStandard |
Advanced HDR by Technicolor
NERFINISHED
ⓘ
Dolby Vision NERFINISHED ⓘ HDR10 NERFINISHED ⓘ |
| standardizedBy | ITU-R NERFINISHED ⓘ |
| standardizedIn | ITU-R BT.2100 NERFINISHED ⓘ |
| supportedBy |
major streaming platforms
ⓘ
many HDR‑capable TVs ⓘ some set‑top boxes ⓘ |
| supports |
scene‑referred HDR
ⓘ
wide dynamic range ⓘ |
| targetedFor | broadcast distribution chains ⓘ |
| usedFor |
live events broadcasting
ⓘ
live sports broadcasting ⓘ |
| usedIn |
4K HDR TV services
ⓘ
UHDTV broadcasting ⓘ streaming video services ⓘ |
| uses |
gamma curve for mid‑tones and shadows
ⓘ
logarithmic curve for highlights ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.