HDR
High Dynamic Range
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When it comes to HDR, currently there are five different kinds.
| HDR10 | HDR10+ | HLG | Dolby Vision | Advanced HDR by Technicolor |
HDR10
HDR10 is the original and currently it is the most common form of HDR. It's an open standard that has been adopted by numerous manufacturers and service providers. Amazon, Netflix and the Blu-ray Disc Association (BDA), are just a few examples.
UHD
HDR10+
Having pretty much the same characteristics as the above, this standard also comes with a plus and that is the dynamic metadata (opposed to static). This means the HDR values get analysed, shot by shot and results are stored onto an accompanying metadata file. This will allow for the tone mapping (from the HDR master to your non HDR display) to be as accurate as it can be. It being dynamic ensures every shot is automatically adjusted to your display to look as close as possible to the full HDR master.
UHD
HLG
Hybrid Log Gamma, is an important HDR format as it is the format currently used for TV broadcasts.
It is the result of a joint research project between the BBC and Japanese broadcaster NHK. Designed to deliver a more convenient HDR solution for the broadcast world.
It takes standard dynamic range and high dynamic range images and combines them into one feed. HLG-compatible TV’s are then able to decode the HDR image from the feed.
UHD
DolbyVision
With a higher bitrate than HDR10 and with the sort of dynamic metadata that inspired competitiveness and with it the development of HDR10+, DolbyVision is to some extent seen as being of higher quality.
The two formats have been adopted by Amazon Prime Video and Netflix, for example, and can happily coexist under the same platform.
UHD
