It's a simple question I suppose:
I want to stretch my image both with a HistogramTransform and a MaskedStretch and combine the results with a starmask.
if I use STF to generate my HT settings, should I use the same target background I used with STF for my MaskedStretch or should I still use a ReadOut mode to choose the target background in MaskedStretch as often said in tutorials?
I ask because although I choose a target background = 0.15 with STF, my typical background after HT is bellow 0.08 (which is normal I suppose, STF's target background is applying to the whole image, and faint stuff are probably raising the statistics).
In MaskedStretch, should I therefore still use 0.15 as a target background, (same than STF's value) or should I go with 0.08 from what I really observe with the ReadOut mode after my HT stretch? Which one should match better or make more sense overall?
