[Cin] Reverse Tone Mapping paper from 2007

[Andrew Randrianasulu]

вт, 13 мая 2025 г., 12:11 Pekka Paalanen <pekka.paalanen at haloniitty.fi>:

> On Mon, 12 May 2025 15:52:04 +0300
> Andrew Randrianasulu <randrianasulu at gmail.com> wrote:
>
> > And modern reincarnation of this idea, using OBS's plugins!
> >
> > https://m.youtube.com/watch?v=qXrn4MqY1Wo
> > "DIY "infinity contrast" TV - with 100% recycled parts" from two months
> > ago, initially found by my friend Vladimir after I showed him all this.
> >
> > added two more recipients in cc.
> >
> > Pekka, you might like this too, as less secretive description of how HDR
> > part of HDR display system works.
>
> Hi Andrew,
>
> that's a neat project for sure.
>
> > >> PS: I played around with Colorspace property on my hdmi connector on
> > >> RX550 via xrandr:
> > >>
> > >> guest at slax:~/botva/src/src$ DISPLAY=":0" xrandr --output 0x54 --set
> > >> Colorspace Default
> > >> guest at slax:~/botva/src/src$ DISPLAY=":0" xrandr --output 0x54 --set
> > >> Colorspace BT2020_YCC
> > >> guest at slax:~/botva/src/src$ DISPLAY=":0" xrandr --output 0x54 --set
> > >> Colorspace Default             guest at slax:~/botva/src/src$
> DISPLAY=":0"
> > >> xrandr --output 0x54 --set Colorspace opRGB               guest at slax
> :~/botva/src/src$
> > >> DISPLAY=":0" xrandr --output 0x54 --set Colorspace Default
> > >>
> > >> Anything but Default resulted in VERY pink (nearly red!) image. Not
> sure
> > >> if this is limitation of 8bit per channel  mode or hdmi to vga
> adapter I
> > >> use?
>
> Maybe https://gitlab.freedesktop.org/drm/amd/-/issues/3358 ?
>


Ah, thanks, looks similar, while I tested with fullscreen firefox window
(triggered xrandr from remote ssh session).



>
>
>
>
>
> Thanks,
> pq
>
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