I am in search of an algorithm capable of displaying an HDR image on an 8-bit screen. Essentially, I require an algorithm that converts HDR to LDR. Specifically, I am aiming to achieve results comparable to those produced by GIMP or Photoshop. I have attempted to locate this algorithm within the GIMP source code, but unfortunately, my search has proven unsuccessful. I prefer a plain algorithm.
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Have a look at GNOME/babl https://gitlab.gnome.org/GNOME/babl – Maurice Perry Jul 17 '23 at 09:16
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What you’re looking for is called “tone mapping”, and searching for “tone mapping libraries” will turn up a wealth of resources. – Sneftel Jul 17 '23 at 09:21
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I don't know why you look at Gimp because AFAIK there is no such thing in Gimp. Gimp can increase contrast and apply various kinds of sharpening, but If you real tone-mapping with open-source software look at LuminanceHDR. – xenoid Jul 17 '23 at 17:30