Some might be surprised that I don’t mention in the news, “Abstract profiles”. This is not an oversight, but a deliberate omission for a wide communication before the new version 5.9
Indeed this addition was the subject of long and heated debates (with misunderstandings on the purposes, and the technique).
Nevertheless it is an important step forward for those who are interested in it (this is not a criticism, but an observation - new things often bring this kind of reaction - what is the use of it, it is not in software A or B).
But it will be essential to put it for the release of 5.9
Here is a summary of the main features
TRC: adjust gamma and slope to: a) modify the image rendering, which by default is g=2.4 s=12.92; b) raise the shadows and modify the lighter tones while preserving the colorimetry and the gamut.
Illuminant (white point): a) adjust the gamut of the Working profile to adapt it to the shooting conditions taking into account the colorimetry. If an image is taken at 4000K, in sRGB (which is D65), the gamut may not be suitable. The joint action of the Illuminant and CIECAM (symmetrical mode) allows you to ensure good chromatic adaptation; b) used in conjunction with the modification of the Primaries below.
Primaries: this is where the notion of Abstract profiles comes into its own. Several possibilities are available: a) Use this module as a Channel Mixer in order to create special effects similar to Color Toning, with or without CIECAM; b) Use it to modify or refine the result of the Input profile to improve the colorimetry (calibration).
D: Jacques Desmis, Ingo Weirich
C: Wayne Sutton, Andy Astbury
You can find all the explanations in Rawpedia
As far as screenshots are concerned, I think there is everything you need in the “Local adjustments” documentationas far as screenshots are concerned, I think there is everything you need in the “Local adjustments” and “Wavelets” in Rawpedia
My very bad health doesn’t allow me to do more
Excuse my very bad english