Apologies for my lack of German, but do you have Highlight
Reconstruction activated? The clip highlights issue will prevent this
from happening, and the two reconstruct options sometimes get you some
lost color in the highlights.
If my understanding of the problem is correct, this happens because a
RGGB sensor has twice more green signal than red or blue, so when the
green is dialed back down by the white balance adjustment, the red and
blue stay very high, thus resulting in the pink highlights.
Hope this helps,
Ruxandra
On 9/29/20 10:51 AM, Rainer Krienke wrote:
Hello,
recently I wanted to reedit a photo from 2008 taken with a Nikon D80.
When opening the raw with darktable 3.2.1 (in darkroom as well as
lighttable) I observed that in the mostly unprocessed raw, areas with
blown out highlights are shown in pink color, not white.
Exporting this raw to jpg results in a jpg where the pink areas are also
visible just like in darktable.
I created a screen shot to show you this problem. Its available by:
https://userpages.uni-koblenz.de/~krienke/tmp/dt/Screenshot_20200928_093618.png
I found out that if I disable the white balance module the pink color
turns to white but as soon as I activate WB again those areas are also
getting pink again, so I cannot correct it without seeing "pink".
I opened the raw photo with the raw converter I used those days which
was Aftershot Pro and it shows these areas as white which is what I
would have expected.
Bug? Any ideas?
Thanks
Rainer
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