HDR Discussion Thread

[RockyIII]

Would you guys rather have 1080p with HDR or 2160p without HDR ?

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[RockyIII]

Originally Posted by krazeyeyez

Only have 3 movies so far and all had the hdr sticker on the covers. To clarify while looking at the amazon titles here on the site I notice quite a few movies don't have the hdr sticker on the pic does that mean they dont have hdr?

I noticed LG tv's have a picture mode called hdr, can be set to low medium and high. This is what confused me as well.

HDR Effect mode aka 'A Bad Gimmick'

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[Staying Salty]

Originally Posted by krazeyeyez

New to 4k just started upgrading my equipment.

Regarding hdr... is the effect added by the tv or source... and part two of that question if it is source based do some 4k bluray not have hdr ? I notice some don't mention hdr on the covers.

Ultra HD Blu-ray (4K) Discs and High Dynamic Range (HDR) for Dummies

[2themax]

Originally Posted by Geoff D

Answer me something please, o encoding guru: do you guys master stuff at full levels (not talking just about HDR but regular SDR too) by default and then map it across to limited prior to the final encode? I keep hearing conflicting things about this, some say yes but then others mock the idea. I don't see why we'd get certain video levels problems which can sometimes be worked around by changing the levels if that wasn't the case, but I've always wanted to get a straight answer from a pro.

I don't have a definitive answer for you either. The mastering process happens before I get my hands get on it. I can say that the HDR grades I've received have all been full level. SDR masters have mostly been video level excpet for when it was a DPX delivery. Those were full level and converted to video level during a preprocess stage before encoding.

[jibucha]

2160p without HDR :: (UHD)

what's significantly important to me
(2160p - 10-bit/12-bit - WCG - color space - etc)
HDR actually bores me, although to the extent that it comes to bear on the 'other' elements of picture quality, i appreciate it
note :: i have lost interest in SD/HD, but still watch it :: UHD is essential

Originally Posted by RockyIII

Would you guys rather have 1080p with HDR or 2160p without HDR ?

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[Penton-Man]

Originally Posted by Penton-Man

invested in HDR R&D....there is an internal saying within Dolby - “Lead Generously” which I think has been shown to be the case in multiple areas.

Research to become publicly accessible very soon in which Dolby scientists studied the influence of screen size and distance on perceived brightness for screens as big as cinema and as small as mobile phones. Results suggested that retinal size is not sufficient to explain the range of discovered brightness variations, but is sufficient in combination with physical distance from the observer.





The resulting model can be used as a step towards perceptually correcting image brightness perception based on target display parameters. This can be leveraged for energy management and the preservation of artistic intent.

[Penton-Man]

https://forum.blu-ray.com/showthread...r#post14750977
follow-up from the retreat ^ in the desert ->

Press coverage on highlights of the past HPA 2018 Tech Retreat….
http://www.studiodaily.com/2018/02/h...-retreat-2018/

[Penton-Man]

Originally Posted by Geoff D

I'm quite sure that, at the dishwasher.com forums, there's a Geoff D-style Armchair Expert™ just waiting to help you on your quest

I think I’ve found one I/we liked (even conferred with an employee at their assembly plant in North Carolina). As I mentioned in PM to one of our members here who’s off to frolicking in South Florida, hopefully our new dishwasher will be even half as reliable as the DC-3…. https://www.cnn.com/travel/article/a...c-3/index.html . Next up is to finagle a free installation or figure out how to hook her up myself.

[Penton-Man]

Originally Posted by Penton-Man

free

speaking of free, one moment - public service announcement

[Geoff D]

Originally Posted by 2themax

I don't have a definitive answer for you either. The mastering process happens before I get my hands get on it. I can say that the HDR grades I've received have all been full level. SDR masters have mostly been video level excpet for when it was a DPX delivery. Those were full level and converted to video level during a preprocess stage before encoding.

Thanks man! That there is some variance in the delivery of SDR content that you've experienced is enough to put my mind at ease.

[Penton-Man]

Originally Posted by Penton-Man

speaking of free, one moment - public service announcement

^ --> Attention SoCal locals - meeting in Buena Park…free for the first 5 students -

[Geoff D]

Originally Posted by RockyIII

Would you guys rather have 1080p with HDR or 2160p without HDR ?

Depends. With film-based material - I don't mean modern stuff finished on a DI, I mean a proper photochemical film finish - then I'd have to go for the 4K SDR version, particularly for large format epics like yer Lawrences and yer Sound of Musics.

But for modern digitally shot stuff I'd take the 2K HDR (preferably upscaled at source so as to bake in the superior chroma resolution of 4K) over the 4K SDR every time.

[RockyIII]

Originally Posted by Geoff D

Depends. With film-based material - I don't mean modern stuff finished on a DI, I mean a proper photochemical film finish - then I'd have to go for the 4K SDR version, particularly for large format epics like yer Lawrences and yer Sound of Musics.

But for modern digitally shot stuff I'd take the 2K HDR (preferably upscaled at source so as to bake in the superior chroma resolution of 4K) over the 4K SDR every time.

Well it seems like new 1080p HDR panels will hit the market soon...why?

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[Geoff D]

Sony are targeting the gaming segment. It'd be cool if those TVs could also display the 1080p HDR output that you can get from certain UHD players if you set them to 1080p (examples for the Sony X800 and OPPO 203 here: https://www.avforums.com/threads/new...#post-25961961) but apparently they lack the necessary copy protection that's needed to get the UHD player to output an HDR signal.

[Penton-Man]

Originally Posted by Geoff D

here: https://www.avforums.com/threads/new...#post-25961961)

In addition to the techno stuff, I see in your post you also do bonus stuff over there ^ .
Calls for - https://twitter.com/lookingcat/statu...92340141498370

[Penton-Man]

On the general topic of 1080p HDR -

For the historical record with regards to timing and standards, it wasn’t until summer of 2016 that BT.2100 (which is an extension of BT.2020) that ITU-R added 1920 x 1080 HD as a resolution option for producing HDR TV images, as Richard Paul and I discussed back in ’16. This opened the door for broadcasters to choose to use HDR on HD channels.

The thinking behind this addition (which was omitted from BT.2020) then was that daytime programming will not be confined to SDR, also it would offer a value proposition for consumer TV manufacturers, if they so chose, to produce HDR HD televisions in the smaller sizes where spatial rez > than 1080 isn’t as much of a benefit as compared to HDR.

[Penton-Man]

Originally Posted by Penton-Man

Press coverage on highlights of the past HPA 2018 Tech Retreat

T-shirt slogans -



but, more significantly, these days to avoid ionizing radiation, perhaps another slogan is in order ? -

No insurance
No MRI

(or, for the historical record, NMR).

[Penton-Man]

Originally Posted by mrtickleuk

Ah! Sorry, only just read it. Wouldn't be able to get the time off work anyway

Well, if you're interested I just noticed they've got some storytelling stuff from the event now on YouTube.

[Penton-Man]

Originally Posted by Geoff D

modern digitally shot stuff

https://schedule.sxsw.com/2018/events/PP99978

[Penton-Man]

Originally Posted by gkolb

heat equation

ahoy:

The First Look in New York Teaser Film - YouTube