New Sigmoid Scene to Display mapping

[kofa (István Kovács)]

Note that in darktable 3.6, the colour calibration module will support improving colours using a Color Checker.

https://darktable-org.github.io/dtdocs/module-reference/processing-modules/color-calibration/#extracting-settings-using-a-color-checker

Color calibration for dummies (without the maths)

First, happy New Year ! Then, some people fried their brain trying to understand the new color calibration module in darktable. While this post is not meant to spare you a good read of the doc (you should try it some time, seriously, it’s simply the best. Tremendous guys working there, I called them the other day, had a great chat), this is what you need to know to use it while the information is brewing in your brain. What we expect This is your usual color checker shot using hot-shoe strobe…