Finally found the time to do something again:
Thank you. Very informative. Are there any issues with respect to mixing rgb tools and lab space tools? Would it be possible to have a lab based “auto matched tone curve”? Would it have any particular advantage or disadvantage?
I haven’t seen the video, but:
Yes, the combined drawbacks of working in RGB and Lab (hue shifts, desaturation, etc). Not to say that you shouldn’t do it. I do it all the time.
Anything is possible.
Not in my opinion - the current curve methods are sufficient, and you can always simple copy-paste the auto-matched curve into the Lab tool.