Originally Posted by mrtickleuk
Fixed for you
+ is what you were writing about. "HDR+
" is a Picture Mode
on Samsung TVs which does SDR-to-HDR up-conversion, and is something completely
different. Samsung should be shot for calling two completely different things with very similar names.
For people looking for more infor on HDR10+
Like Dolby Vision, HDR10+ is all about adding dynamic metadata to the HDR signal.
Standard HDR10 uses static metadata, which means the boundaries of brightness are set at the start of a film or show and don’t budge for the duration.
These boundaries have to be broad enough to display every scene of the film – essentially, the TV’s 1.07 billion colours are spread evenly across that entire brightness spectrum, which means that if a scene contains only bright or only dark elements, only a portion of those colours are available for it. This can result in dark scenes looking a bit dim and bright scenes losing detail.
With dynamic metadata, those brightness boundaries can be set and changed on a frame-by-frame basis, so the full colour range can be deployed even in scenes that contain only dark or only light elements. The result, in theory, is subtler gradients and therefore more detail.
We’ve already seen this in action with Dolby Vision. The Power Rangers 4K Blu-ray is noticeably improved in Dolby Vision when compared to HDR10, particularly in regard to bright lights in otherwise dark scenes and subtle details in bright areas of an image. In short, it’s a more exciting, enticing and nuanced picture.
How is HDR10+ different to Dolby Vision?
At their core, HDR10+ and Dolby Vision are similar – they both use dynamic metadata to tweak a TV’s performance to get the most out of every frame – but there are key differences.
For a start, while TV manufacturers and studios have to pay Dolby to license Dolby Vision, and therefore have little control over its development and implementation, HDR10+ is a royalty-free, open format that any company, including Samsung’s rivals, can tweak and deploy as it sees fitare. It's due in spring 2019