Is it possible to create a feature that allows the user to select an area within an image in the fitsviewer to give a targeted opportunity to critique background DN / ADU e.g a moveable box of say 10x10 pixels that shows the user some appropriate stats (Min/Max/Mean/Median). The mean/min/max of the 100 'background' pixels could be a useful value to quickly determine exposure. The Fits Viewer currently produces DN values for the whole image so why not for a user selected area. Maybe a mouse over would be the simplest.
* Posted earlier on my topics page, added here as a wished for feature
Skywatcher 190MN - EQ6 Pro (with Belt Mod) - ASI1600MM-Cooled - ASI EFW7 - ASI120MM - WO f4 Guide Scope - Rigel nStep - KStars/Ekos - KDE - PixInsight