вс, 11 мая 2025 г., 22:53 Andrew Randrianasulu <randrianas...@gmail.com>:
> > > вс, 11 мая 2025 г., 21:49 Andrew Randrianasulu <randrianas...@gmail.com>: > >> >> >> вс, 11 мая 2025 г., 21:23 Andrew Randrianasulu <randrianas...@gmail.com>: >> >>> Today you can find more refined ideas, papers and implementations, but >>> it all started somewhere ... >>> >>> https://vccimaging.org/Publications/Rempel2007L2H/Rempel2007L2H.pdf >>> >> > 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, $50 000 watercooled (!) 37" display! > > It used same technology of many specific illumination "zones" as many > today's HDR monitors (no wonder, this BrightSide firm said they patented it > and sold to various display manufacturers.) > > Still, it was connected via DVI , not sure at that bit depth and > colorspace ... > And looking at their (BrightSide's) archived webpage ( Dolby bought them) I see such gems as https://web.archive.org/web/20060721021656/http://www.brightsidetech.com/tech/papers/siggraph2004.pdf Basically DIY HDR display from LCD + Projector, driven by dual vga outputs of ordinary for that era PC graphics cards ;) > PS: I played around with Colorspace property on my hdmi connector on RX550 > via xrandr: > > guest@slax:~/botva/src/src$ DISPLAY=":0" xrandr --output 0x54 --set > Colorspace Default > guest@slax:~/botva/src/src$ DISPLAY=":0" xrandr --output 0x54 --set > Colorspace BT2020_YCC > guest@slax:~/botva/src/src$ DISPLAY=":0" xrandr --output 0x54 --set > Colorspace Default guest@slax:~/botva/src/src$ DISPLAY=":0" > xrandr --output 0x54 --set Colorspace opRGB > guest@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. > > > > >> >> more recent 2020 paper >> >> >> 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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