Thanks everyone ! This is mostly a showcase of the combined use of 2 modules I hacked:
- the unbreak color profile, where I added a log profile as a tonemapping method, with 2 different exposure optimiziers (one guided, one fully auto), in order to remap the luminance between 18 and 96 (where the ICC input profile is not extrapolated, hence the better color rendition)
- the color balance, where I added the ASC CDL mode, which can fix lightness, contrast, saturations and hues selectively for shadows, highlights and mid-tones in Prophoto RGB (doing operations in Lab as most modules do is generally a non-sense).