4K HDR Movies with BT.2020 Color - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 30 Old 05-21-2020, 05:14 PM - Thread Starter
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4K HDR Movies with BT.2020 Color

This thread is for the purpose of identifying and compiling a list of movies which include color which is beyond 100% of DCI-P3 and/or have good coverage of the BT.2020 color gamut.

We are now seeing more video displays such as RGB Laser Projectors with Color Gamut Coverage extended beyond 100% of DCI-P3 up to and including full coverage of the BT.2020 Color Gamut.

All HDR video is mastered with respect to the BT.2020 color gamut not DCI-P3.

The only reason why DCI-P3 was brought into things is because it was too great an increase beyond REC.709 for consumer displays to achieve the full BT.2020 color gamut.

Hence the target of achieving 100% of the DCI-P3 co-ordinates within the BT.2020 color gamut was set as an intermediary milestone target for consumer displays.

There was also more than an element of marketing influence here as well, in that "100% of DCI-P3" sounds more impressive than "71% of BT.2020" doesn't it?

The amount of content with color beyond 100% DCI-P3 will of course vary from title to title. Many consumer movies have been and are graded with the DCI-P3 co-ordinates within the BT.2020 color gamut in mind. However color saturations do sometimes to extend beyond 100% of DCI-P3. Some won't exceed 100% of DCI-P3 within BT.2020, but others most certainly will. Furthermroe there are numerous movies which have been graded with respect to BT.2020 essentially ignoring the DCI-P3 co-ordinates and provide extensive coverage of the BT.2020 color gamut. And we are now seeing more and more video content that makes decent usage of the wider color gamut.

See the following charts which illustrate the differences between the REC.709, DCI-P3 and BT.2020 color gamuts coverage.

However, it should be noted that of course you cannot see the actual colors in these tables that will be produced with BT.2020 color, unless the diagram included BT.2020 color and is being displayed on a display that has 100% coverage of BT.2020, which is not the case here. Hence, it is the size of the triangles that you should take note of, not what the color actually looks like within the triangles:




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post #2 of 30 Old 05-21-2020, 05:14 PM - Thread Starter
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There exists TWO METHODS by which video content can be analyzed that I will be referencing with respect to determining what (if any) content exists wherein the colors are beyond 100% of DCI-P3, namely:

(1) VIDEO ANALYSIS HARDWARE AND/OR SOFTWARE; and

(2) GAMUT MARKER feature on the SONY BVM-HX310 PROFESSIONAL MASTER MONITOR



You can analyse HDR video content using the Gamut Marker function on the Sony BVM-HX310 Trimaster HX Professional Master Monitor to accurately determine to what extent there are colors that reside beyond the DCI-P3 colour gamut.

First of all you toggle the 'Gamut Marker' function within the Sony BVM-HX310's menu to 'ON'. Then you set the 'Target' (Color Gamut) to 'DCI-P3' within the menu options. This completes the setup process.

Now when video content is played back via the display any and all portions of the video image which contains color that resides beyond 100% of DCI-P3 are highlighted using a zebra striped pattern.


Here are some screenshots of the Sony BVM-HX310 Trimaster HX Professional Master Monitor using the aforementioned 'Gamut Marker' function to highlight any and all areas of the image wherein the color extends beyond 100% DCI-P3.

Lego Batman:














Spider-Man: Into the Spider-Verse:








Planet Earth II:







And even in the Blu-Ray Disc MENU ! Wherein here's the Gamut Marker Setting Menu for illustration purposes as well:





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post #3 of 30 Old 05-21-2020, 05:14 PM - Thread Starter
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And now for examples using the VIDEO ANALYSIS HARDWARE AND/OR SOFTWARE:


THE MATRIX:

Very extensive coverage of the BT.2020 Color Gamut!
















ALIEN COVENANT:

Some great coverage of the BT.2020 Color Gamut!














LA LA LAND:

Superb coverage of the BT.2020 Color Gamut!


















THE SHAPE OF WATER:

BT.2020 Greens & Yellows:








MAD MAX FURY ROAD:

Some nice BT.2020 Reds with a dash of Blues













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post #22 of 30 Old 05-22-2020, 09:20 AM
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Quote:
Originally Posted by ARROW-AV View Post
And now for examples using the VIDEO ANALYSIS SOFTWARE:
Spoiler!

.
Thanks for this. I really like these screens with the gamut graph and the screenshot representing the colors on the screen that are going out of P3 and into 2020. What software is it?
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post #23 of 30 Old 05-23-2020, 05:19 AM
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Nigel,
Thanks for starting this thread; very ,very interesting. Lots of work I'm sure.

Art
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post #24 of 30 Old 05-23-2020, 05:51 AM
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Wonderful thread! Is that reddish explosion in Mad Mad Fury Road the one at ~18minutes in where people were asking what colour it was?
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post #25 of 30 Old 05-23-2020, 09:20 AM - Thread Starter
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Originally Posted by Art Sonneborn View Post
Nigel,
Thanks for starting this thread; very ,very interesting. Lots of work I'm sure.

Art
This is a particularly interesting subject which had not yet been properly evaluated, nor understood. And yet it has become very relevant now that we have numerous displays capable of displaying more than 100% of DCI-P3 and some which are capable of displaying the full BT.2020 color gamut. Even professional video calibrators have been surprised to discover the extent to which color beyond 100% of DCI-P3 exists in numerous movies

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Wonderful thread! Is that reddish explosion in Mad Mad Fury Road the one at ~18minutes in where people were asking what colour it was?
I am not aware of the circumstance to which you refer wherein people were asking what colour it was... Do you have a link?

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post #26 of 30 Old 05-23-2020, 09:53 AM
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I am not aware of the circumstance to which you refer wherein people were asking what colour it was... Do you have a link?
Certainly! Controversy here: https://www.avsforum.com/forum/149-b...l#post42313201 . Three users called it "Deep Red". Eight users called it "Shades of Orange". Apparently it's at 18:10. I don't have that disc so can't give you my opinion - I've only see it once, and that was HD SDR.

Eric Whipp, the colourist for that movie actually did a Q&A yesterday which I've just started watching.
Spoiler!
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post #27 of 30 Old 05-24-2020, 10:17 AM - Thread Starter
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Originally Posted by puddy77 View Post
Thanks for this. I really like these screens with the gamut graph and the screenshot representing the colors on the screen that are going out of P3 and into 2020. What software is it?

.
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post #28 of 30 Old 05-24-2020, 10:35 AM - Thread Starter
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Originally Posted by mrtickleuk View Post
Certainly! Controversy here: https://www.avsforum.com/forum/149-b...l#post42313201 . Three users called it "Deep Red". Eight users called it "Shades of Orange". Apparently it's at 18:10. I don't have that disc so can't give you my opinion - I've only see it once, and that was HD SDR.

Including results for eric whipp colourist
Search only for eric whipp colourise

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Web results

Eric Whipp, the colourist for that movie actually did a Q&A yesterday which I've just started watching.
Spoiler!
Well I suppose that the simplest answer to the question/argument is that the color is 'BT.2020 Red'; something which you won't perceive to its full extent unless viewing via a display that is capable of displaying the BT.2020 color gamut beyond 100% of DCI-P3 within BT.2020
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post #29 of 30 Old 05-24-2020, 11:25 AM
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Originally Posted by ARROW-AV View Post
Well I suppose that the simplest answer to the question/argument is that the color is 'BT.2020 Red'; something which you won't perceive to its full extent unless viewing via a display that is capable of displaying the BT.2020 color gamut beyond 100% of DCI-P3 within BT.2020
.
It seems possible that the reason people couldn't agree on which colour it was, related to different tone-mapping on different displays. People often think tone-mapping just with luminance, but it's not. That's only a 1D operation. It's a full 3DLUT tone-mapping of the whole gamut down at the same time too.

Anyway - what's the answer to my question? Is your screenshot taken anywhere near the 18:10 point please?

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post #30 of 30 Old 05-25-2020, 04:06 AM - Thread Starter
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Quote:
Originally Posted by mrtickleuk View Post
It seems possible that the reason people couldn't agree on which colour it was, related to different tone-mapping on different displays. People often think tone-mapping just with luminance, but it's not. That's only a 1D operation. It's a full 3DLUT tone-mapping of the whole gamut down at the same time too.

Anyway - what's the answer to my question? Is your screenshot taken anywhere near the 18:10 point please?
The Time Stamp for this screenshot = 00:55:46



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bt.2020 , color space , gamut , Rec.2020 , rec.709

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