(12-31-2017, 10:28 AM)godek Wrote: When I use the eyedropper how can I tell I am picking the right black or the right white?
Cause I've read you want to avoid picking one that is clipped in the histogram. is it highlights or shadows or both can be clipped??
BTW: What Distribution(s) of linux do you guys use?
If the white/black points are clipped (ie, are already 0 or 255) then there is no point trying to improve the picture by moving them, you will only extend the clipped range.
The benefit of the histogram is that you can see how much you can cut on both ends to stretch the midtones. In the histogram I posted, setting the white point to 220-230 doesn't lose very many pixels, while at the other end you have little margin around the black point.
Using (K)ubuntu 16.04.