I just wanted to share how I managed to salvage a raw photo. I don’t know if I just discovered hot water
By the way, the original photo looked like this:
Very low dynamic range, and heavy blue haze. The mountains were several km away.
After a long and unsuccesful wrestling with Darktable, due to my scarce knowledge of it, I was about to surrender, when I had the idea of giving the file a run through Luminance HDR. I choose the Ferradans operator, and here is the result (after minor tweakings):
I was almost moved to tears
This means that the data was there in the raw, and I wasn’t able to extract it in a meaningful way. Hence my question: what is a general approach to this kind of washed out blue photos? I think I’m missing some color theory principles to be able to understand the problem and therefore its solution.