HDR Discussion Thread

[PeterTHX]

Originally Posted by Penton-Man

This is me - https://www.youtube.com/watch?v=EdRMVhlNP5I#t=7sec
With this - https://www.pcmag.com/news/363363/in...top-processors

Laptop chips. Back to school time. Happens every year.

[stobbart]

I am looking to get a new TV in about 6 months or so and will finally make the upgrade to 4K. However, I remember when 4K was first coming out there was all this talk of handshakes, hiccups, HDR, Dolby Vision, etc. Just usual early format things. Seemed like nothing was standardized and you would need a TV and player that could handle both HDR and Dolby Vision... (What?).

My question is all of this still going on?

Basically I want a set-up that can play my blu-ray's without upscaling and play any 4K blu-ray no problem and easily switch between the modes. Does such a thing exist yet?

[gkolb]

Originally Posted by stobbart

I am looking to get a new TV in about 6 months or so and will finally make the upgrade to 4K. However, I remember when 4K was first coming out there was all this talk of handshakes, hiccups, HDR, Dolby Vision, etc. Just usual early format things. Seemed like nothing was standardized and you would need a TV and player that could handle both HDR and Dolby Vision... (What?).

My question is all of this still going on? YES, sort of...
Basically I want a set-up that can play my blu-ray's without upscaling and play any 4K blu-ray no problem and easily switch between the modes. Does such a thing exist yet?

You will be disappointed that without upscaling, your blurays will fill 1/4 of the 4K screen, and a DVD will fill 1/16 of a 4k screen, so upscaling will happen in the player or TV. What you shouldn't want is fake HDR applied to your SDR sources, nor DNR nor edge enhancements.

Some players do SDR better than others, as do TV's with full HDR. Some new names like TCL and Vizio don't cost as much, and do a pretty good job at HDR.

Then there's Sony, LG, and Samsung. Prices are falling on 2018/17/16 models (depending on the brand). If you can afford a Sony Z9D they're half price now. Otherwise late Jan 2019 will have some of the best sales, (not Thanksgiving.) Best to get the tv first, then decide on how much player you can afford and what features it needs to support your tv.

Here's the in-house primer that can help with basics, concerns and questions about HDR -- Ultra HD Blu-ray (4K) Disks and High Dynamic Range (HDR) for Dummies https://forum.blu-ray.com/showthread.php?t=293133

[Steedeel]

Originally Posted by Penton-Man

I’ll sign off now before my wife walks by, looks over my shoulder and gives me one of those evil eye looks.

Eagle eyed looks?

[PaulGo]

Article on HDR10+:

https://www.howtogeek.com/364609/what-is-hdr10/

[BrownianMotion]

Originally Posted by PaulGo

Article on HDR10+:

https://www.howtogeek.com/364609/what-is-hdr10/

How are people who repeat this expected to be taken seriously?

HDR10+ also boosts the maximum brightness, going from HDR10’s 1,000 nits to 4,000 nits—still short of Dolby Vision’s 10,000 nits, but a marked improvement.

[gkolb]

Originally Posted by PaulGo

Article on HDR10+:

https://www.howtogeek.com/364609/what-is-hdr10/

Another inaccurate media article. There are FACTUAL errors about HDR10+ and slurs of Dolby Vision.

[Geoff D]

I've lost count of the amount of times I've read that hdr10 is capped at 1000 nits in "articles" like this, and that bit about + "boosting" it to 4000 is hilarious, it's like they're literally just making it up as they go.

The Perceptual Quantiser EOTF is capable of 10,000-nit (and full 2020 coverage) in whatever form it takes, be it HDR10, HDR10+ or Dolby Vision.

[AdubW1982]

Originally Posted by Geoff D

I've lost count of the amount of times I've read that hdr10 is capped at 1000 nits in "articles" like this, and that bit about + "boosting" it to 4000 is hilarious, it's like they're literally just making it up as they go.

The Perceptual Quantiser EOTF is capable of 10,000-nit (and full 2020 coverage) in whatever form it takes, be it HDR10, HDR10+ or Dolby Vision.

I messed up and bought a Samsung 4k tv back in 2015. Samsung told me it's a 2014 model and doesn't have HDR. But when I'm watching something from Amazon, Netflix, it has HDR by the title of the show/movie. So, I'm a little confused.

[Geoff D]

What I said doesn't really have any bearing on what your TV can/can't do, I'm stating what the underlying transfer function is capable of, something which most tech sites are clueless about.

[ray0414]

Originally Posted by AdubW1982

I messed up and bought a Samsung 4k tv back in 2015. Samsung told me it's a 2014 model and doesn't have HDR. But when I'm watching something from Amazon, Netflix, it has HDR by the title of the show/movie. So, I'm a little confused.

What's the model number?

[AdubW1982]

Originally Posted by ray0414

what's the model number?

un55ju6400

[PaulGo]

Originally Posted by AdubW1982

un55ju6400

According to the reviews this model does not have HDR or an expanded color gamut.

[ray0414]

Originally Posted by AdubW1982

un55ju6400

Yes this model was updated for hdr, as was all 2015 Samsung 4k sets. But the hdr is pretty restricted. If you want some better hdr, I would recommend selling the TV for a few hundred bux, then throwing an additional few hundred and picking up a 2018 Vizio P series or TCL R series. Those brands offer better hdr performance for that price range than Samsung tvs do. You'll be much happier if you can swing it.

[Penton-Man]

Originally Posted by DanBa

Hi

Principal photography for Midway (2019) is scheduled to begin this week at Hickam…. https://www.military.com/off-duty/20...ext-month.html

[mrtickleuk]

Originally Posted by gkolb

Another inaccurate media article. There are FACTUAL errors about HDR10+ and slurs of Dolby Vision.

Agree. Terrible.

And of course it repeatedly claims that HDR10+ content exists.

Even though Dobly Vision offers better quality than HDR10, HDR10 is winning the format war because of its openness.

"is winning" is the present tense. Not one single title can be viewed and verified that it is HDR10+ (that's the key) on consumer equipment from any provider.

Not one.

But apparently this vapourware format is "winning"

[puddy77]

Originally Posted by puddy77

The Lenovo Thinkpad X1 Extreme supports Dolby Vision and Atmos with a 400 nit UHD touchscreen.

https://www.anandtech.com/show/13300...pad-x1-extreme

Same for the new Yoga C930

https://www.anandtech.com/show/13320...30-convertible

[Penton-Man]

Today I received a PM from a fellow member saying “Someone from another forum is downplaying the significance of Dolby’s contribution with regards to the idea of PQ (picture quantizer) EOTF to the industry and I’ll quote him - “Dolby did not invent more bits and better highlights.
Not sure about how much of PQ is Dolby's creation.”

Penton, what are your feelings about this.”

Feelings backed with documented facts:
Sometime in the Spring of 2012, vis-à-vis an input document to the respective working party, Dolby introduced the picture quantizer (PQ) EOTF to the ITU. So, they were pretty much, without question, the developers of this new EOTF. Somewhere on this forum several years ago I posted a pic of the first page of the input document as proof, as these input documents are not publicly accessible. I don’t have time to search for it now, but the energetic among you could try using the search word ITU.

Later on that same year, Dolby submitted an additional input document to the same working party reiterating the rationale behind the perceptual quantizer that is the basis of the EOTF that was proposed and this time added the details of a subjective study involving 30 some participants to determine min. and max. display luminances, etc. based on viewer preferences, which was later presented here at Stanford - https://talks.stanford.edu/scott-daly-timo-kunkel/

Then later on in the year 2014, in the non-broadcast arena, the PQ EOTF function was adopted in SMPTE ST 2084 with this exclusive forum (any AV forum for that matter) heads-up to its publication here.

[Penton-Man]

Originally Posted by Penton-Man

Principal photography for Midway (2019) is scheduled to begin this week at Hickam…. https://www.military.com/off-duty/20...ext-month.html

A day later after this post ^ , more Midway news, this time not from Blu-ray.com, but courtesy of Deadline….https://deadline.com/2018/09/roland-...19-1202457811/

Note to our Hawaiian membership, I think they’re filming today on Kahuku beach. If you’re in the area, stop over and send us a pic. I have a fondness in my heart for Hawaii - https://forum.blu-ray.com/showthread...e#post13698045

[gkolb]

Originally Posted by Penton-Man

A day later after this post ^ , more Midway news, this time not from Blu-ray.com, but courtesy of Deadline….https://deadline.com/2018/09/roland-...19-1202457811/

Note to our Hawaiian membership, I think they’re filming today on Kahuku beach. If you’re in the area, stop over and send us a pic. I have a fondness in my heart for Hawaii - https://forum.blu-ray.com/showthread...e#post13698045

No problems with the volcano in that area of the big island?
The map seems to have that beach right in the vicinity...