[Cin] Reverse Tone Mapping paper from 2007

[Andrew Randrianasulu]

вс, 11 мая 2025 г., 21:49 Andrew Randrianasulu <randrianasulu at gmail.com>:

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> вс, 11 мая 2025 г., 21:23 Andrew Randrianasulu <randrianasulu at gmail.com>:
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>> Today you can find more refined ideas, papers and implementations, but it
>> all started somewhere ...
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>> https://vccimaging.org/Publications/Rempel2007L2H/Rempel2007L2H.pdf
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Ah, wiki article on one of the first HDR displays from 2005:

https://en.m.wikipedia.org/wiki/DR37-P

and it links to Wayback Machine-saved article explaining this monitor:

https://web.archive.org/web/20070122160003/http://www.bit-tech.net/hardware/2005/10/03/brightside_hdr_edr/1.html

wow, $50 000 watercooled (!) 37" display!

It used same technology of many specific illumination "zones" as many
today's HDR monitors (no wonder, this BrightSide firm said they patented it
and sold to various display manufacturers.)

Still, it was connected via DVI , not sure at that bit depth and colorspace
...

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?

opRGB = Adobe RGB as far as I can see in Wiki.




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> more recent 2020 paper
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> https://www.cambridge.org/core/services/aop-cambridge-core/content/view/3E58E1A14BC6543EB47B6C3B1A172C96/S2048770320000050a.pdf/fully-automatic-inverse-tone-mapping-algorithm-based-on-dynamic-mid-level-tone-mapping.pdf
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