| I hate to magenta overexposure! And I do not see a way to make overexposure
| colorless in the darktable. Even under the vignette sky is pink.
| Samples:
[...]
| RAW: https://s3.amazonaws.com/HomeMila/raw/IMG_4790.CR2
|
| Picture of darktable better in all respects, but the pink sky just negates
| everything!
[...]
|
| Is there anything to do?
A quick fix in this situation is to go to Highlight Reconstruction
in the Basic group, switch it to 'reconstruct in LCh', and turn down
the clipping threshold until the magenta highlights disappear. On your
example CR2 that got me a decent starting point with minimal effort.
My understanding is that the magenta colour cast comes from when your
picture has one or two of the three colour channels blown out and
clipped. In that circumstance Darktable must try to reconstruct the
'true' colour of the area with incomplete information. In the case of
your example CR2, RawDigger[*] says that a significant amounts of the
green channels and portions of the blue channel are hard-clipped in the
RAW.
- cks
[*: RawDigger is Windows and Mac only but it generally runs under Wine
for me. It's an excellent tool for reliably seeing what is in a RAW
file.
]
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