There are two ways to set white balance.
The ‘legacy way’ is without color calibration, simply with white balance. It’s perfectly valid.
The other is the ‘modern way’ with color calibration, but in this case white balance must be set to camera reference. Now, the trouble is, for some cameras the reference values in the profile are wrong, and therefore this method gives wrong results. There are also other drawbacks (the white balance is not set correctly until you get past color calibration, which means that demosaicing, chromatic aberration correction and other modules don’t work with the real colours).
Anyway, my first attempt (either in color calibration or turning that off, and then in white balance) is to pick a neutral spot. The electrical sockets/mountings looked like a reasonable target.
That gave me this (no filmic, sigmoid or any other curve):
That’s probably too blue.
I also tried sampling the paper of the present:
The result:
Then the neutral-looking spot in the bottom-right corner:
The same with only white balance, picking the samples there:
Not knowing the original colour of the wall, I don’t know if any of those are close to reality colour-wise? Then brightness and contrast could be set with any of the curves.
You can combine picking and manual adjustments, of course.
With the ‘legacy’ WB, using the bottom-right corner, and sigmoid curve:
PC170001_01.ORF.xmp (10.7 KB)
