HDR Discussion Thread

[Penton-Man]

Originally Posted by DanBa

....We have mastered classics from the '40s in Dolby Vision, and the results are breathtaking…""
http://www.pc-magazin.de/ratgeber/do...u-3197964.html

Despite soldiering on with HDR redo’s, it’s complicated.

There are mixed feelings among studio people (shall we say the ‘film purists’ vs. the ‘sales people’) as to the issue of reimagining old films created by a Director who has since passed or otherwise unavailable. Even if the source content is good enough to expand upon, who then makes the totally arbitrary decision as to how much more shadow detail to allow, how brighter the highlights should be, how deeper the colors should be in the HDR iteration?

Some believe it’s a tricky proposition to accurately gauge the aesthetic and approach to a scene which was in the mind of the filmmaker at the time of the original production. They see that tweaking things can become a slippery slope, e.g. where is the dividing line between tweaking the image to make it look ‘better’ as defined by a digital colorist, perhaps even born after the film was originally shown, to tweaking things to a point of making it look ‘better’, but much different from the original achievement…..not to mention either outcome resulting in a disservice to the Director.

As to the last concept ^, I posted about reimagining back in ’09, in particular, a directive from this well known and successful Director (still living, who actually as a Producer has a feature film in post production right now) in which was spelled out his wishes in the last paragraph of the following link in case future advances in technology came about and somebody desired to re-imagine his work with this particular film….. https://forum.blu-ray.com/showthread...ne#post2325081, i.e. "no one in the future should endeavor to conform and re-scan the film negative and re-color time the film to potentially take advantage of any improvements in scanning and digital intermediate technology. His decisions were rendered onto the film-outs, and the various data and video versions, and should be considered definitive and final."

You have to wonder how many other Directors involved in how many other older films felt exactly the same way about their original work but never had the foresight or felt the need to put it down in writing….or that it would make a difference if they did.

I’m glad such decision making is above my pay grade.

[Geoff D]

And yet I love it that Soderbergh indulged in recutting his favourite movies. I know that's not quite the same thing as some yet-unseen future force making "definitive" decisions as to the look of his films but still: there's nowt so queer as folk.

[DanBa]

Originally Posted by Penton-Man

...
Also consider the fact that despite the new Panasonic OLED (EZ 1000 series) not having Dolby Vision support, it has been approved as a reference/client monitor (for editing, Q/C, etc.) by Deluxe, Company 3, eFilm and Encore. That combination of facilities represents a boatload of post production work.

UHD 4K (SDR) reference/client monitor?

or

HDR10 reference/client monitor?
(i.e. as there is no de jure standardized HDR10 display adaptation, the HDR10 display adaptation of the Panasonic OLED EZ 1000 is becoming the de facto standardized HDR10 display adaptation?)

[Geoff D]

Originally Posted by DanBa

UHD 4K (SDR) reference/client monitor?

or

HDR10 reference/client monitor?
(i.e. as there is no de jure standardized HDR10 display adaptation, the HDR10 display adaptation of the Panasonic OLED EZ 1000 is becoming the de facto standardized HDR10 display adaptation?)

A custom LUT would be able to overcome this and hew to the ST 2084 EOTF as closely as possible. Not a problem.

[DanBa]

Originally Posted by Geoff D

A custom LUT would be able to overcome this and hew to the ST 2084 EOTF as closely as possible. Not a problem.

Sorry, I don't know the custom LUT concept, could you elaborate?

Thanks.

[Geoff D]

A Look Up Table (applied via an outboard processor) which applies a customised set of parameters to whatever display device you might have, in order to achieve or emulate a certain type of performance criteria e.g. gamut coverage, EOTF tracking etc.

[Penton-Man]

Originally Posted by Geoff D

there's nowt so queer as folk.

Is this south London talk, what does that mean?

[Penton-Man]

Originally Posted by DanBa

UHD 4K (SDR) reference/client monitor?

or

HDR10 reference/client monitor?
(i.e. as there is no de jure standardized HDR10 display adaptation, the HDR10 display adaptation of the Panasonic OLED EZ 1000 is becoming the de facto standardized HDR10 display adaptation?)

HDR and SDR baby !, as Geoff seemed to indicate with his comment regarding the benefit of built-in 64 point LUT support through the normal user interface of the Panny.

[Penton-Man]

http://www.displaysummit.com/data-an...ng-conditions/

To answer the last recommendation ^....thee industry is , in order to produce formulas to adjust for that, for example to add a tidbit to this cutting-edge heads-up post to Blu-ray.com forum readers …. https://forum.blu-ray.com/showthread...t#post13745993 , for the testing at the studio, the surround lighting can be adjusted from ~ 5 to 500 nits.

And, like I said, Dolby Labs is fully aware of non-reference viewing environments and hasn’t been sitting on their butts not doing anything either…. https://forum.blu-ray.com/showthread...t#post13754180

[disrember]

Originally Posted by Penton-Man

Is this south London talk, what does that mean?

Its more Northern England and its said to emphasise that people sometimes behave in a very strange way.

[zmarty]

Is it just me, or this article is not great? Maybe some comments should be in order. http://www.highdefdigest.com/news/sh...of-hdr10/39249

[Geoff D]

Originally Posted by zmarty

Is it just me, or this article is not great? Maybe some comments should be in order. http://www.highdefdigest.com/news/sh...of-hdr10/39249

Now do people realise why I piss on HDD review's so much? They just don't have a clue. Might as well have "In association with Dolby Vision" as the tagline underneath.

[Geoff D]

Heh. I just posted a big ol' message detailing just why that hit piece is so far off the mark it's not even in the same time zone (I loved that zinger about certain Sony sets having "a tad more" brightness than 700 nits, my 1900-nit ZD9 says "hi!", and that soon we'll have OLEDs than can reach 1000, as if there's nothing else out there than can reach that high), but funnily enough it's disappeared.

Bunch of clowns, but everyone who frequents that site will drink it in and the Dolby Vision hype train will continue unabated. Ah well. The sooner we all have some form of dynamic metadata the better, not that it makes the lies, distortions and half-truths about HDR10 any less ill-informed but at least the FUD will dry up.

[zmarty]

Hey, what a surprise! They deleted both my comment and yours, which I cannot find.

[PaulGo]

HDR just like 3D if done correctly can be very good and add to the movie.

[HeatEquation]

The clown who wrote that article should consult whoever wrote the Power Rangers review for the same site. The same review that found only a very subtle difference between DV and HDR10.

[grodd]

Originally Posted by HeatEquation

The clown who wrote that article should consult whoever wrote the Power Rangers review for the same site. The same review that found only a very subtle difference between DV and HDR10.

Same guy

[HeatEquation]

Originally Posted by grodd

Same guy

This gets more hilarious by the second.

[grodd]

Originally Posted by zmarty

Hey, what a surprise! They deleted both my comment and yours, which I cannot find.

I remember they don't take kindly to criticism very well, especially this guy.

[Penton-Man]

A variety of content is necessary for evaluation purposes with regards to professional investigations such as the need for additional extension(s) of HEVC or an entirely new standard …..

Originally Posted by Penton-Man

ISO/IEC MPEG and ITU-T VCEG are jointly investigating the potential need for standardization of video coding technology with a compression capability that significantly exceeds that of the current HEVC standard. Such future standardization could take the form of additional extension(s) of HEVC or an entirely new standard. Responses to a Call For Evidence on new superior performance video compression technology are tentatively planned to be evaluated next month.....the first step in a long process, but duly noted.

Pertaining to thee above ^ , the exploration team has 5 sequences to test HDR and submitters are required to provide results for all sequences –