HDR Discussion Thread

[LordoftheRings]

https://www.youtube.com/watch?v=c-aY...ature=youtu.be

[LordoftheRings]

https://www.youtube.com/watch?v=INcW...ature=youtu.be

https://www.youtube.com/watch?v=SiAW...ature=youtu.be

[Stacey Spears]

Originally Posted by Penton-Man

Stacey, did you go last night? - https://www.colorfront.com/

No, had a kidney stone. Tyler sent me images from the demo though.

I did manage to attend the Galaxy Edge preview on 5/25 though, which was fun and not very crowded given the limited audience.

[Stacey Spears]

I had posted an xls showing player comparability a while back. I had mentioned some chroma alignment issues with the OPPO.

Here are some sample images poorly taken with my iPhone on an LG B7. This is the Scaling HD pattern. Just wanted to show some differences sending in 422 vs. 444 from a given player letting the display scale vs. the player. This gives you an idea of something things to look at.

https://uc99db35430fad2d3848be6a556b...JVhQ/file?dl=1

The Source Direct and Auto images are from the OPPO UDP-203. As you can tell, it is off by .5 pixels. The Panasonic is the UB9000, which is spot on in alignment. The baseline is the test pattern converted to RGB and scaled to UHD using our own tools. It is not an HDR grab, so you are seeing PQ through Gamma on your computer monitor, which is why the background is not as white as the iPhone pics.

The Panasonic does have some odd chroma ringing, which is caused by their chroma enhancement.

Source Direct is the LG scaling, Auto is the OPPO scaling. Panasonic is scaling to UHD. We used our own software to scale the baseline images. Then used nearest neighbor to make them 400% bigger to view up close.

Just wanted to point out how you really need to test 4:2:2 vs 4:4:4 into a given display, from a player. And letting the player vs. display scale is also something you need to evaluate, if you have the option.

[Geoff D]

Where is that scaling HD pattern from, Stacey? The new disc? I've compared the scaling patterns on S&M 2nd Ed and can see no alignment issues with that disc being upscaled into 4K on the OPPO.

[Penton-Man]

Originally Posted by Stacey Spears

had a kidney stone

water is one’s friend….

[LordoftheRings]

[FilmFreakosaurus]

This has to be one of the weirdest forum threads on the internet...


And I love it!!!!

[Stacey Spears]

Originally Posted by Geoff D

Where is that scaling HD pattern from, Stacey? The new disc? I've compared the scaling patterns on S&M 2nd Ed and can see no alignment issues with that disc being upscaled into 4K on the OPPO.

Yes, the new disc. We added the chroma alignment diamonds to the pattern once we ran into a display that introduced delay while scaling. The new disc has it at 2160p and 1080p. We wanted to include 720p, but was not an option. The 2nd edition has the pattern at 1080p, 720p and 480p.

[Wendell R. Breland]

Originally Posted by Stacey Spears

Yes, the new disc.

Can you reveal the release date of the new disc? Will you start a new support thread in this section or another section on Blu-ray.COM?

[Stacey Spears]

Originally Posted by Wendell R. Breland

Can you reveal the release date of the new disc? Will you start a new support thread in this section or another section on Blu-ray.COM?

As soon as we have discs, it will go on sale. We gave Sony the thumbs up last week, so we should have discs in 2-3 weeks. Until we have inventory, I don't want to provide a date. At CES, we thought we would have it out in March. Discs are actually being pressed now, so it is real.

I don't recall how the last thread was created. It might have been created by an admin. I don't want to get in trouble by creating my own thread. As it is, I am nervous about posting in this thread, which is why I am trying to limit my posts to just answering questions. I don't want to violate forum rules with advertising, etc...

[LordoftheRings]

Originally Posted by Penton-Man

For the record on May 31st at 9 P.M., there were 2,493,465 views for this thread per a fellow member of this forum who prefers to remain anonymous and merits a thank you for his accurate information. So, we’ll go with that figure when we total the views for the month of June….if I’m around to do the tally at the end of this month and not otherwise occupied.

Right now we're @ 2,500,264 views. Two point five million, a new milestone.

[DisplayCalNoob]

@Stacey Spears is one of the test patterns related to tonal resolution?

[Penton-Man]

Originally Posted by FilmFreakosaurus

This has to be one of the weirdest forum threads on the internet...


And I love it!!!!

no matter the endeavor, feeling the need for speed -
https://theplaylist.net/ford-v-ferra...iler-20190602/

[Penton-Man]

hmm, Freakosaurus are you sure you don’t love us solely for our longtime (this from 2016) welcoming attitude toward tiny brachiosauruses:

Originally Posted by Penton-Man

I’ll leave you with this ….

[Stacey Spears]

Originally Posted by DisplayCalNoob

@Stacey Spears is one of the test patterns related to tonal resolution?

I have never heard that term before in the context of images. When I think of tonal, I think of gradations. We have a rotating gradient (shallow) for banding and then various types of ramps (stimulus, saturation and tone mapping). We have a P3D65 in 2020, 2020 and 709 hue / saturation gradients / ramps. And we have bursts, wedges and zone plates for resolution. (Luma, Luma linear, chroma and RGB legal chroma)

[DisplayCalNoob]

Originally Posted by Stacey Spears

I have never heard that term before in the context of images. When I think of tonal, I think of gradations. We have a rotating gradient (shallow) for banding and then various types of ramps (stimulus, saturation and tone mapping). We have a P3D65 in 2020, 2020 and 709 hue / saturation gradients / ramps. And we have bursts, wedges and zone plates for resolution. (Luma, Luma linear, chroma and RGB legal chroma)

Wondering how well my display 10 bit panel and 12 bit processing, is handling 12 bit content.

[Geoff D]

If you're not seeing any banding, then you're golden. Reminds me of when the Panasonic 4K player first debuted, it didn't have a native 10-bit output (only rectified several months later with a firmware update) and so everything was upsampled to 12-bit. When the player was outputting 4K 12-bit 4:4:4 certain brands of TV like Samsung and LG were choking on the signal, throwing out posterisation all over the place.

I recall Stacey saying on the RED forum that he chose a ZD9 because it was one of the few displays at the time that actually had a proper 10-bit output thanks to its oversampled 14-bit processing, I'd like to hear what other panels he recommends for 'true' 10-bit performance.

[Penton-Man]

Originally Posted by LordoftheRings

Right now we're @ 2,500,264 views. Two point five million, a new milestone.

As opposed to tiny brachiosauruses as seen on the last page, we can also get traditionally techno serious, with informational postings, e.g.

Originally Posted by Stacey Spears

HDR10+ will help displays in the 300-400 nit range. On a 1000+ nit display, you may not see any difference.

The default target value is 400 in Transkoder, when you create the HDR10+ metadata. I had initially made it 1000, but then I was asked to lower it to 500 by those working on HDR10+.

Originally Posted by Penton-Man

Also when in Davinci Resolve, as soon as you select in project settings the HDR10+ box, a 400 – 500 nits cap is instituted.

to cause even the most HDR format learn-Ed, speechless wonderment.

[Penton-Man]

Originally Posted by woodspoon

shooting Top Gun in 6k?

Thursday marks the 1 year anniversary of the heralding of thee event (Sony Venice pictured on the left) –
https://twitter.com/BRUCKHEIMERJB/st...33006822612992