HDR Discussion Thread

[PaulGo]

Higher brightness can give more intense colors. If done properly the higher nits can display brilliant outdoor scenes for a more lifelike appearance. It's up to the specialists to use the higher nits content properly.

[Penton-Man]

Originally Posted by gkolb

(although I've seen the real answer now, and don't know anything about this new series.)

I hope you'll like it. Spiffy new (as of yesterday) trailer, no?

[Penton-Man]

Originally Posted by DanBa

HDR10+

Bonjour
For the Samsung method (App. 4), I posted this YouTube clip last (2017) Jan. –
https://www.youtube.com/watch?v=qicgLruwMTY#t=41m49s

If anyone is interested in more detail about the Bézier curve and algorithm (warning, math intensive !), PM me.

[Penton-Man]

Originally Posted by puddy77

TheSweetieMan posted a BDA press release,

How’d one do on the prediction thread? - https://forum.blu-ray.com/showthread...r#post14562442

[Penton-Man]

Originally Posted by Geoff D

If you don't get eye damage from day to day life where brightness can far exceed 10000 nits in specular emissions then you won't get eye damage watching such content on a TV, nor will it affect epileptics any more than typical content, it's repeated flashing images etc that those folks need to be aware of regardless of how bright they are. People have got to understand that this sort of brightness isn't for constant full-field image intensity that will roast their eyeballs, it's reserved for the absolute brightest speculars and whatnot.

^ True.
If people want to worry about something, worry about AMD - https://nei.nih.gov/health/maculardegen/armd_facts
(as many as 11 million people in the U.S. have some form of age-related macular degeneration. This number is expected to double to nearly 22 million by 2050)

P.S.
Full disclosure - I own stock in Allergan (which produces Ozurdex implants).

[Penton-Man]

Originally Posted by Penton-Man

Bonjour

Maryline

As to fictional content, just for a taste, I think folks like Rocky et al. showing some interest in the possibilities for movie content in HFR would really appreciate the French providing open access (something like a Creative Commons Attribution license) to the HFR(100 fps) file for this short movie -




as stills, like these framegrabs are all I'm at liberty to share publicly -
https://forum.blu-ray.com/showthread...u#post13425318

The 2018 LG oled announced at CES could play your movie.

[saltyramen]

Confused about HDR. Does every 4K UHD disc contain HDR or is it just select ones

[FilmFreakosaurus]

Originally Posted by saltyramen

Confused about HDR. Does every 4K UHD disc contain HDR or is it just select ones

Almost all UHD titles use HDR grading and a wider color gamut.

[Staying Salty]

Originally Posted by saltyramen

Confused about HDR. Does every 4K UHD disc contain HDR or is it just select ones

https://forum.blu-ray.com/showpost.p...3&postcount=22

[JohnAV]

Originally Posted by DanBa

"In an interview with TechRadar, Dolby Laboratories’ Senior Vice President of Consumer Entertainment Giles Baker, mused about a future in which both systems coexist.
Granted, he believes Dolby provides a better end-to-end solution for HDR mastering and delivery, but that doesn’t mean he thinks HDR10+ doesn’t have its merits. It’s just … different.

The difference between them, and the point Baker wants to make abundantly clear, is that, for Dolby Vision, all of that metadata is created by hand by colorists and editors at the movie studio.
HDR10+’s metadata, meanwhile, is produced by an upscaling algorithm. This algorithm-based mode for content generation takes a lot of work off the editors and reduces time in development, which, Baker admitted, he could understand that being seen as a positive trait.

I missed seeing this nestled tidbit earlier.
So isn't the movies studios metadata creation techniques superior to a just a upscaling algorithm? Sounds like a another method to lay off some people.

[RockyIII]

Another reason why I stick with Dolby Vision and will keep my money on it

[LordoftheRings]

Originally Posted by Geoff D

If you don't get eye damage from day to day life where brightness can far exceed 10000 nits in specular emissions then you won't get eye damage watching such content on a TV, nor will it affect epileptics any more than typical content, it's repeated flashing images etc that those folks need to be aware of regardless of how bright they are. People have got to understand that this sort of brightness isn't for constant full-field image intensity that will roast their eyeballs, it's reserved for the absolute brightest speculars and whatnot.

Originally Posted by PaulGo

Higher brightness can give more intense colors. If done properly the higher nits can display brilliant outdoor scenes for a more lifelike appearance. It's up to the specialists to use the higher nits content properly.

Originally Posted by Penton-Man

^ True. ...Geoff post above.
If people want to worry about something, worry about AMD - https://nei.nih.gov/health/maculardegen/armd_facts
(as many as 11 million people in the U.S. have some form of age-related macular degeneration. This number is expected to double to nearly 22 million by 2050)

That is a good subject of scientific investigation.

• Bonus: https://www.cnet.com/how-to/does-hdr-hurt-to-watch/

[Penton-Man]

Originally Posted by JohnAV

I missed seeing this nestled tidbit earlier.
So isn't the movies studios metadata creation techniques superior to a just a upscaling algorithm? Sounds like a another method to lay off some people.

Most believe it’s more valuable to also have the option of an eyes-on manual refinement after your initial upstream non-human automated step -
https://www.youtube.com/watch?v=qicgLruwMTY#t=40m49s

[Penton-Man]

Originally Posted by Geoff D

Dolby's special sauce

Hoyte’s special sauce (be patient, brief pause at the beginning) -
https://www.hollywoodreporter.com/vi...m-1072237#t=4m

[LordoftheRings]

• https://forum.blu-ray.com/showpost.p...postcount=2005

[Penton-Man]

Originally Posted by JohnAV

I missed seeing this nestled tidbit earlier.
So isn't the movies studios metadata creation techniques superior to a just a upscaling algorithm? Sounds like a another method to lay off some people.

Originally Posted by Penton-Man

Most believe it’s more valuable to also have the option of an eyes-on manual refinement after your initial upstream non-human automated step -
https://www.youtube.com/watch?v=qicgLruwMTY#t=40m49s

However, keep in mind, some algorithms in and of themselves, can be pretty darn good, e.g. -
https://news.stanford.edu/2017/11/15...ing-pneumonia/

[Penton-Man]

Originally Posted by LordoftheRings

• https://forum.blu-ray.com/showpost.p...postcount=2005

Before and after sliders is pretty cool tech.
I didn’t get a chance to catch it and would’ve have loved to have seen the demo, but I heard a real hidden gem at CES was the Strykio Impact Device, in fact so popular that while at the show cnet reporter Rob Dubbin introduced it nationwide on The Late Show with Stephen Colbert on 1/12…..






PaulGo, especially with your interest in hardware (https://forum.blu-ray.com/showthread...e#post13917956),
I figure you, as well as others here will be interested in getting one. I plan to.

Heck, it may even win one of those Best of CES awards that many of AV websites (e.g. https://www.cepro.com/) give out.

[PaulGo]

Originally Posted by Penton-Man

Before and after sliders is pretty cool tech.
I didn’t get a chance to catch it and would’ve have loved to have seen the demo, but I heard a real hidden gem at CES was the Strykio Impact Device, in fact so popular that while at the show cnet reporter Rob Dubbin introduced it nationwide on The Late Show with Stephen Colbert on 1/12…..

Are you trying to hammer home a point?

[mrtickleuk]

Originally Posted by Penton-Man

However, keep in mind, some algorithms in and of themselves, can be pretty darn good, e.g. -
https://news.stanford.edu/2017/11/15...ing-pneumonia/

Is there any technical reason why HDR10+ metadata cannot have a manual pass?

If the HDR10+ metadata is in the form of SEI messages in the video stream (apologies if my terminology is not correct there), what evidence does anyone have how that metadata got there?

They simply don't know whether it was hand-curated metadata or machine-produced metadata. Surely they are just assuming.

[JohnAV]

Originally Posted by Penton-Man

However, keep in mind, some algorithms in and of themselves, can be pretty darn good, e.g. -
https://news.stanford.edu/2017/11/15...ing-pneumonia/

Thats a bit generalizing something that can help notice visual differences on a static frame versus a continuous visual presentation. I don’t doubt a complex algorithm could work to make the image quality better, but we have two other infamous examples such as interpolation where you artificially add non real information to make the image appear higher quality, increases details/colors presentation as well as the long debated usage of Darbee where the enhanced image appears to have increased sharpness and contrast. Neither in the end compared to higher resolution content, just a algorithm solution to artificial image enhancement.