Okay, I decided to do a less rough version . Could still be better but I am merely illustrating what could be done. In retrospect, maybe I could make the window’s contents less overpowering. Process:
-
dcraw-rcd
a) RCD demosaicing, 16-bit linear gamma, subtle highlight recovery. -
gmic+clahe
a) Remove hot pixels (caused by recovery).
b) Gamma compression, clahe [→ this is the window layer].
c) [Continue from (b)] s-curve, gamma expansion, recover chroma [→ this is the room layer]. -
GIMP
a) Stack images into layers.
b) Mask top image.
c) Curve adjustment per layer.
d) Layer from visible.
e) Curve adjustment.
Enjoy!
Edit: I followed my own advice and made the window view less prominent. Let me know which you like better . Alt version: