"Black crush" in HDR content, any solution?

[DeeLuXe]

Hi my friends. From the first day I have noticed that this phone suffers from black crush in HDR content. Playing from (internal) SONY player, VLC or Kodi, does not matter.

I've done a comparison with the Spiderman trailer that has the phone in internal memory with the same trailer on YouTube (at 1080p without HDR).

Image config: Aut. brightness off / Brightness at 50% / Image mode 'standard'.

This is the result:

Spiderman trailer 4K HDR:

Spiderman trailer 1080p (without HDR):

Spiderman trailer 4K HDR:

Spiderman trailer 1080p (without HDR):

Down or up the brightness does not affect. It is not a problem of brightness and contrasts. It is Gama problem. A bad implementation of the HDR content. The phone does not allow to modify the Gama range, the video players neither.

This is a software problem. I have contacted other people with the same phone and the same thing happens to them.

Will SONY solve it with any firmware update?

(Sorry for my english, i'm spanish)

[NunoSEN2]

Just wait a little bit more @DeeLuXe, all the images need to be approved by support staff or moderators before appearing.

[DeeLuXe]

Others samples:

Spiderman 4K HDR clip - 100% brightness (aut. off) - Standard image mode.

Spiderman 1080p Youtube (no HDR) clip - 100% brightness (aut. off) - Standard image mode.

**********************

Spiderman 4K HDR clip - 100% brightness (aut. off) - CREATOR image mode.

Spiderman 1080p Youtube (no HDR) clip - 100% brightness (aut. off) - CREATOR image mode.

----

In both cases (Creator & Standard modes) the 'Black Crush' is present (even with maximum brightness); the background scene is dark, the left tree is not seen and we can see that the Furia clothes are black when it is really blue.

The HDR crushes the image with black, kills the grays and intermediate tones. This is not a problem of brightness or contrast (checked), it is a bad HDR implementation (bad gamma tone).

[RottenFoxBreath]

This thread is pointless taking pictures with either a camera, or another phone, of the screen.

Not even close to what it would look like in real life.

[DeeLuXe]

@NunoSEN2

You have the same problem (green screen is because you do not ajust the white balance in camera shot).

Black crush and kill the contrast / medium tones.

[DeeLuXe]

@RottenFoxBreath

I asked you to take pictures (and upload) on your phone. Some problem for it?

If you "don't see anything" It is not enough for me, I want proof.

[NunoSEN2]

@DeeLuXe;

The white balance is the same in both pictures (Medium-R0,G0,B0), I think the green is also some kind of problem with HDR in low brightness or the movie clip itself. With brightness at 100% there seems not to be the "green" issue.

[DeeLuXe]

I had no problems with the color tone taking the pictures (maybe it's because of the HDR). Anyway the problem is the crushing of black, which as you can see, you also have.

You can try with other videos that you have in HDR, you'll see that it's not just that spiderman trailer, it happens in all content in HDR.

I hope SONY solves it with a new Firmware update. Thanks for your help Nuno.

[DeeLuXe]

More tests!

The BSPlayer for Android not support HDR content, but can player the clips without HDR component. This means that it eliminates the gamma layer.

This is the result (same Spiderman 4K HDR clip, not youtube) at 50% brightness.

BSplayer:

VLC player (support HDR):

[DeeLuXe]

More test with same Spiderman 4K HDR Clip (not Youtube)

The BSPlayer for Android not support HDR content, but can player the clips without HDR component. This means that it eliminates the gamma layer.

This is the result at 50% brightness.

BSplayer (without HDR):

VLC Player (with HDR):

-----------------

BSplayer (without HDR):

VLC Player (with HDR):

--------------------

BSplayer (without HDR):

VLC Player (with HDR):

------------------------

BSplayer (without HDR):

VLC Player (with HDR):

[NunoSEN2]

@DeeLuXe;

I was watching the same Spiderman trailer in 4K HDR but on Youtube and there is almost no Black Cruch (and if you increase brightness - needed for HDR content -  the Black Crush is gone), so I think there might be some issue with the demo trailer that comes with the phone.