What is HLG (Hybrid Log-Gamma) in post-production?

Q: What is HLG (Hybrid Log-Gamma) in post-production?

A relative HDR transfer function (BT. 2100) designed for broadcast — backwards-compatible with SDR displays. Used by BBC, NHK and live HDR broadcasts.

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HLG (Hybrid Log-Gamma)

A relative HDR transfer function (BT.2100) designed for broadcast — backwards-compatible with SDR displays. Used by BBC, NHK and live HDR broadcasts. Peak nominal at 1000 nits.

Color Science, DeliveryMastering Engineer, Broadcast EngineerMastering, Delivery

Related terms

PQ curve HDR10

Peak luminance targets (logarithmic scale). Most consumer HDR displays cap around 1000-2000 nits today.

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Ambient Light and Perception: Gamma, PQ, HLG, and Dolby Vision IQ
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Complete HDR guide: PQ vs HLG curves, HDR10/HDR10+, Dolby Vision, dynamic metadata, mastering workflows, dual SDR/HDR delivery strategies.
HDR Delivery: From the UltraHD Label to Streaming and Cinema
How HDR reaches the viewer: UltraHD Premium label, HDR10, Dolby Vision and HLG, streaming, broadcast distribution and cinema HDR (laser projection, LED screens).
Reference monitors: OLED, LCD, HDR
Technical guide to reference monitoring displays. OLED, LCD, HDR evaluation, calibration standards, viewing environments, and professional display technologies.
ACES: End-to-End Color Workflow System
Master ACES color workflow: AP0/AP1 spaces, IDT/RRT/ODT transforms, ACEScg/ACEScct, VFX integration, HDR workflows, and implementation best practices.
Video measurement: waveform, vectorscope, scopes
Comprehensive guide to video measurement tools in post-production. Master waveform monitors, vectorscopes, histograms, and HDR scopes for precise color grading.

HLG (Hybrid Log-Gamma)

Related terms

HDR format peak luminance

Articles covering this term