Blue Planet II comes iPlayer in 4K HDR

The BBC Blue Planet-II-programme-to-be is his first TV series in 4K resolution and high dynamic range (HDR) color on its iPlayer catch-up service.

All seven episodes of the marine-themed show will be made available to UK-based owners of select TVs.

Until now, the BBC had only shared the programs in this format via ultra-high definition (UHD) Blu-ray discs.

Netflix and Amazon stream some of its shows in 4K and HDR.

The BBC suggested that owners of compatible screens, the spectacular animals, vibrant coral reefs and deep blue oceans should enjoy “” like never before.
Living

The term 4K refers to the fact an image has four times as many pixels as 1080p HD, which means it should be more detailed and crisp

To appreciate, however, that the audience must sit close enough to a large enough TV, otherwise your eyes can not tell the difference.

As such, many experts agree that the HDR has actually more influence. It takes advantage of the fact screens are brighter and/or darker than they used to be able to, the provision of a greater dynamic range can go.

As a result, the can be made shadows of the image, are less gloomy during the highlights, including the light shimmering water – can be given more impact.

HDR also uses a wider color space, meaning, it can be a million to show more colors as a SDR – the Blue Planet II, the sea life realistic.

“It is very obvious that the quantity of the colors, the HDR offers compared to the normal images,” commented Becky Roberts from What Hi-Fi magazine.

“It’s definitely more impressive than higher resolution alone, and it is really for showing off the colorful coral reefs and other marine images.

“But it was a slow process, coming from the BBC to this point.”Live-HDR-shipments

Excerpts from a previous series, Planet earth, shown on iPlayer in the last year in 4K and HDR as part of a previous study.

But part of the reason why the BBC is now a complete map that it is trying to pioneer a new HDR format.

While Netflix and Amazon rely on existing technologies – known as HDR10 and Dolby Vision – to provide additional color information, the BBC has together with the Japanese broadcaster NHK to create something that as a hybrid-log gamma (HRG).

HLG is designed to be better suited to live broadcasts of sporting and other events, because you don’t need the metadata – data about data – in contrast to the other formats.

“Metadata is extremely difficult to relay the live production workflow,” explains the BBC Research & Development principal technologist Andrew Cotton.

“The equipment not only supports and we know, from which meta-data is used elsewhere, it is lost, it is damaged. It is a real problem.”

The HLG has some theoretical disadvantages. It is not able to describe how far a dynamic range of Dolby Vision, it can provide information to calibrate the image to a certain TV models.

But Mr. Cotton suggested that, in practice, the spectators would not be discriminated against.

“HLG exceeds the capabilities of the human visual system, and must not make the 28 stops of dynamic range [, Dolby power],” he said.

“Still, it needs the metadata to the adaptation of the signal at different brightness.

“We have quite a few demos, and you can’t see the difference between the two.”

The BBC plans to release the special edition of Blue Planet II immediately after the last episode aired on BBC One on Sunday.

Nearly 400 TV models and Roku Streaming Stick+ 4K are included in the study.

Sky Q-platform is also able to stream programs in 4K, but not HDR that still support it.

But there are exceptions – neither Apple’s nor Amazon’s latest set-top boxes offer compatible versions of the iPlayer and Sony’s top-end ZD9-and A1-sets are currently excluded.

The BBC have yet to reveal themselves, when the other-appear programming in the format.