Wide Colour Gamut (WCG) displays are now standard in High Dynamic Range (HDR) productions, delivering more vivid, realistic, and immersive visuals by supporting a broader range of colours than previous generations. The benchmark for WCG rendering is set by the ITU-R BT.2020 (Rec. 2020) standard, which defines an exceptionally wide colour gamut, surpassing both Rec. 709 (HDTV) and DCI-P3 (digital cinema) in its coverage of the visible spectrum.
Practical Considerations
Despite its ambitious scope, real-world experience shows that manufacturing displays capable of reproducing the full BT.2020 colour volume remains extremely challenging with current technology. Additionally, the limits of human visual sensitivity - particularly the variability between individuals' cone responses (leading to observer metamerism) - raise important questions about how much of the BT.2020 gamut is perceptually meaningful and what level of conformance should be prioritized in display design.
Webinar Details
To explore these issues in depth, a webinar featuring three leading colour science experts - Dr. Andrew Stockman (UCL), Dr. Andy Rider (UCL), and John Frith - provided insight into the perceptual challenges of WCG and BT.2020 implementation. Their presentation was followed by a Q&A session.
Registration
This free webinar was organized by the EBU Video Systems group and was open to all interested participants. As is common with such events, a recording of the presentation part of this event is made available below (the Q&A / discussion part is reserved for live participants). To be aware of any related activities, join the EBU Video Systems group!
