Hi,
Am 12.07.2017 um 10:06 schrieb johannes hanika:
sounds weird, will try to reproduce. the fitting of this function is
using a spline, which may be prone to ringing, in between the colours
you fixed. it has a linear part that fixes this issue for purely b/w,
but may lead to issues for b/w + single colour.
I forgot to mention: A user may want to built his own color look up
table from scratch. For this purpose one would delete all color patches
of the default settings first. The color look up table module with no
color patches should be a no-op. However, the image becomes completely
black if the color look up table module is applied with an empty set of
color lookups.
Heiko
PS: I am using a recent built of darktable from git master.
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