[Cin] HDR footage from images via ffmpeg

[Andrew Randrianasulu]

сб, 27 мая 2023 г., 23:45 Andrew Randrianasulu <randrianasulu at gmail.com>:

>
>
> сб, 27 мая 2023 г., 23:19 Andrew Randrianasulu <randrianasulu at gmail.com>:
>
>>
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>> сб, 27 мая 2023 г., 23:05 Andrea paz <gamberucci.andrea at gmail.com>:
>>
>>> I think HDR in Linux is still a long way off. Wayland seems to have
>>> started working on it these days. Monitors and TVs claimed to be HDR
>>> are mostly Fake-HDR. However, you can't have HDR without Color
>>> Management.
>>>
>>
>>
>> https://www.reddit.com/r/linuxquestions/comments/xryg63/does_linux_support_dcip3_or_10_bit/
>>
>> ====
>> <https://www.reddit.com/user/leo_sk5/>            leo_sk5
>> <https://www.reddit.com/user/leo_sk5/>
>> • 8 mo. ago
>>
>> 10-bit works. You can get DCI-P3 with proper colour profile. Just use
>> x11. You probably read about wayland where these are work in progress. Btw,
>> linux itself may support 10bit colour, but same can not be said for other
>> software that runs on linux.
>>
>> Just put DefaultDepth 30 in /etc/X11/xorg.conf.d/ (default value would
>> be 24). If you also run kde, consider running echo "export
>> KWIN_OPENGL_INTERFACE=egl" >~/.config/plasma-workspace/env/use_egl.sh
>> also, as kde may crash otherwise. With above changes, 10-bit colour works
>> for me in kde
>>
>> ====
>>
>>
>> I wonder how THOSE color profiles look ....Do you have one? Can you run
>> some testing/introspection programs on it?
>>
>
> Also
>
> https://github.com/compiz-reloaded/compicc
>
> ===
>
> Features
>
> CompICC uses Oyranos to configure the ICC profiles for each monitor. The
> order of monitor configuration inside Oyranos is, first look in the Oyranos
> DB for a explicit configured ICC profile, if no then scan the installed ICC
> profiles for one matching the to be setup device, if not generate on the
> fly from the monitors EDID data block, if not try from the Xorg log and as
> a last means take sRGB, if not fail miserably ;-)
>
>    - instant desktop colour correction on GPU with compiz
>    - multi monitor support
>    - ICC Profile in X support
>    - X Color Management 0.3 DRAFT1 support
>    - EDID -> ICC profile on the fly
>    - 16-bit per channel compositing
>    - hotplug capable
>    - wide gamut monitor calibration
>    - support 30-bit monitors
>
> =====
>
> I wonder if you ever get better result by using those system-wide methods
> .....
>
>>

http://www.oyranos.org/2014/05/image-editing-with-30-bit-monitors/index.html

====
Krita supports with the OpenGL backend even native 10-bit per colour
component. Menus in Sketch are black. Krita shows minimal artefacts through
twice colour converting from image to sRGB by Krita and from sRGB to the
monitor colour space by CompIcc. But this effect is much lesser visible
than the improvements through its 30-bit support.
====

sooooo ... it was kinda  working (probably with nvidia quadro?) back in
2014 ...

I never heard about THIS color management system before ....

>
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