I have one more question:
Is it normal that you can get very similar results with different tools?
In other words, can you achieve the same or a similar effect with Log Tone Mapping as with Sigmoid or only with Tone Equalizer?
I tried a few settings and the results were pretty much the same. Except that the tuning was slightly different. I can’t really describe it. It’s like the different tools use different width masks and the results look different. Sometimes the face is lighter than the background, sometimes the other way around. Sigmoid in particular compensates very strongly for the differences between light and dark, so that it sometimes looks almost too artificial.
So my question is: can you really achieve almost identical results with the three tools mentioned, or are they made for different tasks?