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Bug #12728

Negadoctor in Aurelien's git ignores shadows color cast settings

Added by Matthew Harrison 3 months ago. Updated 2 months ago.

Status:
New
Priority:
Low
Assignee:
-
Category:
Darkroom
Target version:
Start date:
03/15/2020
Due date:
% Done:

0%

Estimated time:
Affected Version:
git master branch
System:
Ubuntu
bitness:
64-bit
hardware architecture:
amd64/x86

Description

I'm trying to process some negatives that I scanned in a slightly odd way. They have a colour cast even after film base removal. The highlights white balance tool effectively adjusts away the colour cast in the highlights, but the shadows color cast tool does nothing. I see no change in the picture even if I set completely unreasonable offsets using the sliders, or if I use the colour picker to select a colour from the image.

I'm using a fresh git pull from Aurelien's repository late 2020-03-14.

commit e508ef1b586ab77a7733d027baa5b821ecaa2a81 (HEAD -> negadoctor, origin/negadoctor)
Author: Aurélien PIERRE <>
Date: Sat Mar 7 15:48:57 2020 +0100

darktable --version reports:

this is darktable 2.5.0+4640~ge508ef1b5-dirty
copyright (c) 2009-2020 johannes hanika

compile options:
bit depth is 64 bit
normal build
SSE2 optimized codepath enabled
OpenMP support enabled
OpenCL support enabled
Lua support disabled
Colord support disabled
gPhoto2 support enabled
GraphicsMagick support enabled
OpenEXR support enabled

My system is Kubuntu 18.04 with an AMD Vega 56 GPU running mesa with AMD pro openCL packages.

History

#1 Updated by Matthew Harrison 2 months ago

Thanks for the work diagnosing the issue today Aurelien. I've attached a reduced size copy of my negative here to show you why I was trying to adjust the shadows.

#2 Updated by Matthew Harrison 2 months ago

Second attempt to upload.

Also available in: Atom PDF

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