HDR Discussion Thread

[Penton-Man]

Originally Posted by Penton-Man

The exhibits at the NAB booths can be quite technical, e.g.

[Penton-Man]

Showcasing at NAB 2018 something perhaps easier to understand and geared toward 8K + HDR aficionados and the timeline for said Sharp’s arrival…. https://www.youtube.com/watch?v=dRjEpeHbGIE#t=3m53s

I’m hearing specs include 1,000 cd/m2(nits) brightness and ~80% of Rec.2020 color.

[Waboman]

Originally Posted by Penton-Man

Family ways….
http://www.nbcrightnow.com/story/378...ts-hole-in-one
^ the golden bear cub

Yep, saw that yesterday. Watched it several times. It's awesome.

Gary Nicklaus Jr. Hole-In-One - YouTube

[Penton-Man]

Originally Posted by LordoftheRings

Court intermède:

Annie, I’d like to see this motion picture in Dolby Vision….

Johnny English Strikes Again - Official Trailer (HD) - Coming Soon - YouTube

if only for this scene….https://www.youtube.com/watch?v=-Qv6p6pTz5I#t=1m1s

[gkolb]

Originally Posted by mrtickleuk

As far as we know, no-one has been able to demonstrate that ANY of the Amazon Prime Video streams are actually HDR10+ yet, anywhere in the world. Amazon themselves say this on the subject: ...


So, I'm still waiting for one person to post one screenshot showing the HDR10+ logo proudly displayed in the Amazon Prime Video app for one HDR title. Until I see that, as far as I'm concerned all the people with Samsung 2017 TVs who think they are getting HDR10+ are just seeing a placebo effect. After all, if the streams really were HDR10+, Amazon would be shouting it from the rooftops on Amazon wouldn't they? Since they are the first and only provider of this new format? They wouldn't be burying all knowledge of which streams were in which format, or mislabelling them all, that would be ludicrous...

Actually if you read his article, John Archer did not provide a source. He's written the article twice and has failed both times to actually publish a name and job title of anyone from Samsung who has supposedly given him (and only him) this information.

So, I remember you have been trying to attain an HDR10+ clip (datafile on USB).
Has that ever happened?? Have you seen HDR10+ anywhere in the wild?

[ray0414]

Originally Posted by mrtickleuk

As far as we know, no-one has been able to demonstrate that ANY of the Amazon Prime Video streams are actually HDR10+ yet, anywhere in the world. Amazon themselves say this on the subject:

https://smile.amazon.com/gp/help/customer/display.html?nodeId=201648150&sa-no-redirect=1


So, I'm still waiting for one person to post one screenshot showing the HDR10+ logo proudly displayed in the Amazon Prime Video app for one HDR title. Until I see that, as far as I'm concerned all the people with Samsung 2017 TVs who think they are getting HDR10+ are just seeing a placebo effect. After all, if the streams really were HDR10+, Amazon would be shouting it from the rooftops on Amazon wouldn't they? Since they are the first and only provider of this new format? They wouldn't be burying all knowledge of which streams were in which format, or mislabelling them all, that would be ludicrous...



Actually if you read his article, John Archer did not provide a source. He's written the article twice and has failed both times to actually publish a name and job title of anyone from Samsung who has supposedly given him (and only him) this information.

He doesn't need to provide a name, especially if his contact requests to not be named. But he also puts all this stuff on his Twitter, not just his articles. I'll take John's word without needing an actual Samsung rep name, date of birth, birth certificate, where they grew up, what their favorite color is. It's his Samsung contacts and that's all we need to know. John has earned that respect.

[Staying Salty]

Originally Posted by SpHeRe31459

On the HDR10+ news front:

https://hdguru.com/hdr10-ultra-hd-bl...ab-convention/

Scenarist will demonstrate the complete HDR10+ workflow with ATEME Titan and Samsung HDR10+ enabled Ultra HD Blu-ray Players and displays in a private demo suite at the Renaissance Hotel during the NAB Convention.

I hope the great unwashed masses will be deemed worthy of a demonstration.

[DanBa]

Originally Posted by WiFi-Spy

Just a minor correction. ICtCp was designed as a more perceptually uniform color space. It can be used as a a replacement for YCbCr, and as a CIELAB replacement when used as a Delta E formula. It can also be used as color space for color volume remapping. When used as a replacement for YCbCr, different scaling factors are applied, as compared to when it is used in the other contexts.

Originally Posted by DanBa

Is ICtCp being used in the Dolby Vision Display Management?
Thanks




https://patents.google.com/patent/US20150248747

Originally Posted by Penton-Man

I’ll await WiFi-Spy’s response to your query.

"NetFlix does for all of its new DV content. UHD BluRay is still YCbCr, so the switch will come at some point. All DV capable displays support ICtCp, this is also acknowledged in DV profiles. DV Profile 5 is ICtCp, Vudu is switching to this profile. Content is being encoded right now for our streaming pleasure."
[DisplayCalNoob]
http://www.avsforum.com/forum/465-hi...l#post55985592
https://www.dolby.com/us/en/technolo...-92-171021.pdf

[mrtickleuk]

Originally Posted by gkolb

So, I remember you have been trying to attain an HDR10+ clip (datafile on USB).
Has that ever happened?? Have you seen HDR10+ anywhere in the wild?

No I'm still mentioning every chance I get. Still nothing zip, nada, not one single test file.

[Penton-Man]

Note to space flight movie fans reading, real world thought….would you have the courage to spend as much time in space as some astronauts, e.g.

Real 4K HDR: Hydrophobic Paddles in HDR - YouTube

given risks - https://www.ncbi.nlm.nih.gov/pubmed/29527011 (to those videophiles who take for granted their good eyesight, the potential for decreased visual acuity).

[Penton-Man]

Originally Posted by Penton-Man

....the shares are much too valuable and Netflix is always looking to improve/expand, e.g.

https://qz.com/1245689/netflixs-stra...ios-this-fall/

[Penton-Man]

Originally Posted by DanBa

"NetFlix does for all of its new DV content. UHD BluRay is still YCbCr, so the switch will come at some point. All DV capable displays support ICtCp, this is also acknowledged in DV profiles. DV Profile 5 is ICtCp, Vudu is switching to this profile. Content is being encoded right now for our streaming pleasure."
[DisplayCalNoob]
http://www.avsforum.com/forum/465-hi...l#post55985592

Yes and that’s the hope with UHD Blu-ray.

If he’s the talkative type, ask the local display cal noob if he believes ΔICtCp is a better metric as compared to ΔEoo (https://forum.blu-ray.com/showthread...d#post14870220
for the purpose of defining a calibration color tolerance for HDR and WCG displays, a concept which one Euro calibrator I'm told apparently has an issue with.

Although it was not covered during the past SMPTE tech conference presentation due to time constraints, fact is, previous testing has shown that in all categories
ΔICtCp produced less error than ΔEoo, results table -




as was reflected in the individual plots,
with the red test points showing the strongest deviation between the performance of ΔEoo and ΔICtCp –



Even for colors within the typical operating range of ΔEoo and within normal use for SDR imagery, ΔICtCp was shown to still outperform ΔEoo. As expected, the most significant differences in performance occurred for colors in the 1000 cd/m2 and saturated categories.

[Penton-Man]

^ Addendum.
For those who don’t understand thee ^ above circling stuff (you have to admit though it is far less nauseous than those HDR support Venn diagrams floating around the internet ), a perfect perceptual metric would intersect all three JND threshold points including the MAE circle regions -

[Penton-Man]

Originally Posted by LordoftheRings

Congrats Penton for the 1,000,000+ views milestone.

https://forum.blu-ray.com/showthread...r#post13421141
^ for Geoff (also a contributor to the 1,000,000 viewership milestone in record time),…..voices ->

Colorist Peter Doyle about HDR vintage workflows post etiquette thefilmbook - YouTube

[Waboman]

Peter Doyle? Loved him in Young Frankenstein.

[Geoff D]

thanks, mr P! Doyle does make some excellent points re: acquiring for 4K and/or HDR, of the trends for shooting digital on a fabulous camera but using quirky old glass (Kris Deering is not a fan!) and also for using film emulation LUTs.

Neither will make for the most ass-kickingest 4K HDR that you'll ever see, which is great for the purists out there - it's ironic that some 35mm remasters for 4K HDR from the likes of Sony have WAY more HDR 'pop' to them than modern digital finishes like Ghost in the Shell or Kong Skull Island - but it also narks off the people who buy this stuff precisely to have their eyeballs ravaged as was promised by the marketing spiel for 4K; the UHD of The Last Jedi is perhaps the ultimate example of this effect.

[Penton-Man]

Originally Posted by Geoff D

film

Originally Posted by Penton-Man

PeterTHX, don’t say I’ve forgotten you....either –

https://www.eventbrite.com/e/tour-of...m-term=listing

[Penton-Man]

and to other contributors of this record breaking thread, en particulier pour
DanBa et LordoftheRings….https://www.afcinema.com/Les-videos-...e.html?lang=fr

[Penton-Man]

Originally Posted by waboman

peter doyle? Loved him in young frankenstein.

:d

[gkolb]

Originally Posted by Penton-Man

and to other contributors of this record breaking thread, en particulier pour
DanBa et LordoftheRings….https://www.afcinema.com/Les-videos-...e.html?lang=fr

Oi. It’s en francais.