Hybrid Log Gamma: what you need to know about HLG

INSUBCONTINENT EXCLUSIVE:
What is Hybrid Log Gamma, and why should you careToday's television market is more lively than ever, but that means there are always new
formats and technologies vying for your attention
That's especially true when it comes to HDR (High Dynamic Range): a video format that enhances the brightness, sharpness, and color gamut
of an image beyond SDR (Standard Dynamic Range).What is HDR TV Read more in our comprehensive guide to the television formatBut HDR already
comes in several different guises, from the original HDR10 standard to the more exclusive Dolby Vision, the still-nascent Advanced HDR by
Log GammaHybrid Log Gamma (or HLG) is an HDR format developed by the UK's own BBC, in conjunction with NHK, Japan's national
broadcaster.The issue traditional broadcasters have is that many of their viewers still hold on to old SDR television sets, which can't
display the increasingly prevalent HDR standard
SDR is also much cheaper to film in, and the likes of the BBC are naturally reluctant to ditch a cost-effective format that tens of
thousands of viewers still rely on.The HLG format works around this obstacle by coding both SDR and HDR footage into the same broadcasting
signal
It's a far more efficient process for broadcasters, who then don't have to provide twice the amount of bandwidth to transmit their
programming across the country in two separate formats.When reaching your home television, the HLG signal will display in HDR if your
television is compatible with the HLG HDR format
that shows on your television screen
SDR and HDR footage are both converted into two types of light coding, which can then be unpacked separately depending on the compatibility
television screens.HLG is only one of numerous HDR formats out there, which are all doing different things and are suited to different
purposes.HDR10 is the most common out of these, and is usually what people refer to when they say 'HDR' (any HDR TV will come with it built
in)
Like HLG, it's an open-source format, meaning that anyone can use it, and it delivers on a wider color palette than SDR, with 10-bit color
depth and a peak brightness of 4,000 nits .Dolby Vision is a well-regarded alternative, that can reach up to 10,000 nits brightness and a
12-bit color depth, and generally offers a better picture
HLG is specifically made for the ease of broadcasters, meaning it forgoes metadata that could get lost or out of sync during a live
broadcast.So what can I watch HLG content onAs with any new format, HLG will only be as strong as the players who support it
Even with only those four minutes of content, we were delighted to learn that there is a real audience appetite for better quality pictures,
Hybrid Log Gamma will no doubt start appearing on more televisions, content platforms, and the like, though in a heavily competitive market
you never know what's going to last, and what will fall by the wayside.8pP2Dt5VjukLXRZqBZFwBJ.jpg#