Provided by: darktable_4.6.1-2ubuntu1_amd64 
NAME
darktable - a digital photography workflow application
SYNOPSIS
darktable [options] [IMG_1234.{RAW,...}|image_folder/]
Options:
--cachedir <user cache directory>
--conf <key>=<value>
--configdir <user config directory>
-d {all,cache,camctl,camsupport,control,dev,fswatch,imageio,input,
ioporder,lighttable,lua,masks,memory,nan,opencl,params,perf,
pwstorage,print,signal,sql,undo}
--datadir <data directory>
--disable-opencl
-h, --help
--library <library file>
--localedir <locale directory>
--luacmd <lua command>
--moduledir <module directory>
--noiseprofiles <noiseprofiles json file>
-t <num openmp threads>
--tmpdir <tmp directory>
--version
DESCRIPTION
darktable is a digital photography workflow application for Linux, Mac OS X and several other Unices.
The application is designed to ease editing and consistent processing of large photo sessions and
provides an easy to use digital lighttable and a set of sophisticated post-processing tools.
Most processing is done in 32-bit floating point per channel mode in device independent CIE L*a*b* color
space. darktable is also fully color managed, which gives you full control over the look of the photos.
The application relies on a modern plugin architecture thus making it easy for 3rd party developers to
extend the existing capabilities of the application. All lighttable and darkroom features are
implemented as plugins, so you can create your plugins reusing existing code. Most workflow specific
things can also be scripted in Lua.
OPTIONS
IMG_1234.RAW or image_folder/
You may optionally supply the filename of an image or the name of a folder containing image files.
If a filename is given darktable starts in darkroom view with that file opened. If a folder is given
darktable starts in lighttable view with the content of that folder as the current collection. If
there is already an instance of darktable running (using the same library) the image or folder will
be opened there, using D-Bus to communicate between the two processes.
--cachedir <cache directory>
darktable keeps a cache of image thumbnails for fast image preview and of precompiled OpenCL binaries
for fast startup. By default the cache is located in "$HOME/.cache/darktable/". There may exist
multiple thumbnail caches in parallel - one for each library file.
--conf <key>=<value>
darktable supports a rich set of configuration parameters which the user defines in "darktablerc" -
darktable's configuration file in the user config directory. You may temporarily overwrite
individual settings on the command line with this option - however, these settings will not be stored
in "darktablerc".
--configdir <config directory>
This option defines the directory where darktable stores the user specific configuration. The
default place is "$HOME/.config/darktable/".
-d <debug option>
This option enables debug output to the terminal. There are several subsystems of darktable and
debugging of each of them can be activated separately. You can use this option multiple times if you
want debugging output of more than one subsystem.
A few of those debug options are:
control
Enable job queue debugging. If you redirect darktable's output to control.log and call
./tools/create_control_svg.sh control.log, you will get a nice control.svg with a visualization
of the threads' work.
cache
This will give you a lot of debugging info about the thumbnail cache for lighttable mode. If
compiled in debug mode, this will also tell you where in the code a certain buffer has last been
locked.
perf
Use this for performance tweaking your darkroom modules. It will rdtsc-measure the runtimes of
all plugins and print them to stdout.
all Enable all debugging output. In general this is not very useful.
--datadir <data directory>
This option defines the directory where darktable finds its runtime data. The default place depends
on your installation. Typical places are "/opt/darktable/share/darktable/" and
"/usr/share/darktable/".
--disable-opencl
Prevent darktable from initializing the OpenCL subsystem. Use this option in case darktable crashes
at startup due to a defective OpenCL implementation.
-h, --help
Show the available command line options and exit.
--library <library file>
darktable keeps image information in an sqlite database for fast access. The default location of
that database file is "$HOME/.config/darktable/library.db". You may give an alternative location,
e.g. if you want to do some experiments without compromising your original library.db. If the
database file does not exist, darktable creates it for you. You may also give ":memory:" as a
library file in which case the database is kept in system memory - all changes are discarded when
darktable terminates.
--localedir <locale directory>
The place where darktable finds its language specific text strings. The default place depends on
your installation. Typical places are "/opt/darktable/share/locale/" and "/usr/share/locale/".
--luacmd <lua command>
A string containing lua commands to execute after lua initialization. These commands will be run
after your "luarc" file.
If lua is not compiled in, this option will be accepted but won't do anything.
--moduledir <module directory>
darktable has a modular structure and organizes its modules as shared libraries for loading at
runtime. With this option you tell darktable where to look for its shared libraries. The default
place depends on your installation; typical places are "/opt/darktable/lib/darktable/" and
"/usr/lib/darktable/".
--noiseprofiles <noiseprofiles json file>
darktable's profiled denoise module uses camera specific profile data that gets loaded from an
external JSON file. With this option the file to be loaded can be changed to allow testing
alternative profiles. The default profile file is "noiseprofiles.json" and is typically found in
"/opt/darktable/share/darktable/" or "/usr/share/darktable/".
-t <num openmp threads>
darktable uses OpenMP to parallelize many computation steps and make use of all the available CPU
cores. With this option you can specify the number of threads to use. Valid values are between 1 and
100.
--tmpdir <tmp directory>
The place where darktable stores its temporary files. If this option is not supplied darktable uses
the system default.
--version
Show the darktable version along with some important build options and exit.
DEFAULT KEYBINDINGS
All modes
l Switch to lighttable view
d Switch to darkroom view
t Switch to tethered capture view
m Switch to map view
s Switch to slideshow view
p Switch to print view
. Switch between lighttable and darkroom views
Ctrl-q
Quit
F11 Switch between fullscreen and normal modes of the application's window
Esc Leave fullscreen mode
Ctrl-h
Show/hide header
Tab Show/hide sidebars
Lighttable mode
g, Shift-g
Navigate to top, bottom row
PageUp, PageDown
Navigate one page up, down
' Scroll center
Down, Left, Right, Up
Scroll down, left, right, up
z Preview image
Ctrl-z
Preview image with focus detection
F1, F2, F3, F4, F5
Color labels: toggle red, yellow, green, blue and purple
1, 2, 3, 4, 5
Star rating
0 Strip all stars
r Mark as rejected
l Realign images to the grid
Alt-1
Zoom in on first visible image
Alt-2, 3
Adjust zoom
Alt-4
Zoom out completely
Ctrl-a
Select all images
Ctrl-Shift-a
Select no images
Ctrl-i
Invert selection
Ctrl-d
Duplicate image
Ctrl-g, Ctrl-Shift-g
Group/ungroup selected images
Delete
Remove image from collection
Ctrl-c, Ctrl-Shift-c
Copy all, selected history
Ctrl-v, Ctrl-Shift-v
Paste all, selected history
Space
Toggle selection of an image
Return
Select an image
Ctrl-e
Export currently selected images
Ctrl-k
Jump back to the previous collection
Ctrl-t
Open a popup to quickly tag an image
Ctrl-Shift-i
Import a folder
Ctrl-j
Jump to the filmroll of an image
Darkroom mode
Alt-1, 2, 3
Zoom to 1:1, fill, and fit, respectively
Ctrl-f
Show/hide filmstrip
Space, Backspace
Step to next, previous image
Ctrl-e
Export current image
Ctrl-c, Ctrl-Shift-c
Copy all, selected history
Ctrl-v, Ctrl-Shift-v
Paste all, selected history
o Toggle show of over- and under-exposure
Ctrl-g
Toggle gamut check
Ctrl-s
Toggle softproofing
Enter
In Crop & Rotate module, commit the crop
[, ]
In Flip module, rotate 90 degrees ccw, cw
<, >
When drawing masks, decrease, increase brush opacity, respectively
{, }
When drawing masks, decrease, increase brush hardness, respectively
[, ]
When drawing masks, decrease, increase brush size, respectively
Tethered mode
Ctrl-f
Show/hide filmstrip
v Toggle live view
Map mode
Ctrl-f
Show/hide filmstrip
Ctrl-z
Undo
Ctrl-r
Redo
Filmstrip (when the cursor is on top of the filmstrip)
F1, F2, F3, F4, F5
Color labels: toggle red, yellow, green, blue and purple
1, 2, 3, 4, 5
Star rating
0 Strip all stars
r Mark as rejected
Ctrl-d
Duplicate image
Ctrl-a
Select all images
Ctrl-Shift-a
Select no images
Ctrl-i
Invert selection
Ctrl-c, Ctrl-Shift-c
Copy all, selected history
Ctrl-v, Ctrl-Shift-v
Paste all, selected history
Slideshow mode
Space
Start/stop playback
SEE ALSO
darktable-cli(1)
OTHER INFO
Please visit darktable's website for news, blog and bug tracker: <https://www.darktable.org/>
<https://www.darktable.org/usermanual/> The complete darktable usermanual.
darktablerc.html An overview over all default config settings. The default place depends on your
installation. Typical places are "/opt/darktable/share/doc/darktable/" and "/usr/share/doc/darktable/".
REPORTING BUGS
Please use the bug tracker on <https://github.com/darktable-org/darktable/issues> to report bugs, feature
requests and so on.
AUTHORS
The principal developer of darktable is Johannes Hanika. The (hopefully) complete list of contributors
to the project is:
* developers: Pascal Obry Aldric Renaudin Roman Lebedev
* translators: Victor Forsiuk Pascal Obry Jeronimo Pellegrini Martin Straeten EdgarLux Marko Vertainen
Kang-Wei Hsu Mario Zimmermann Matteo Mardegan RIM Fabio Sirna Nicolas Auffray Petr Stasiak Serkan ÖNDER
Яна Тунгушпаева Besmir Godolja Báthory Péter Kofa Matjaž Jeran Nicolas Ryo Shinozaki Tianhao Chai bajdero
* contributors (at least 4 commits): Victor Forsiuk Hanno Schwalm Diederik ter Rahe Mario Zimmermann
Jeronimo Pellegrini Miloš Komarčević Sakari Kapanen Martin Straeten Ralf Brown solarer EdgarLux Chris
Elston Paolo DePetrillo Bill Ferguson gi-man Marko Vertainen rawfiner Kang-Wei Hsu Nicolas Auffray
* Sub-module rawspeed contributors (at least 1 commit): Roman Lebedev Miloš Komarčević Georg Lukas
Yattaro Jan Šmucr Jorge Nerín Marco Ristuccia Massimo Paladin Michael Allman Omari Stephens Victor
Forsiuk
* Sub-module integration contributors (at least 1 commit): Pascal Obry Sakari Kapanen
And all those of you that made previous releases possible
This man page was written by Alexandre Prokoudine <alexandre.prokoudine@gmail.com> and Richard Levitte
<richard@levittr.org>. Additions were made by Tobias Ellinghaus <me@houz.org>.
HISTORY
The project was started by Johannes Hanika in early 2009 to fill the gap (or, rather, a black hole) of a
digital photography workflow tool on Linux.
COPYRIGHT AND LICENSE
Copyright (C) 2009-2017 by Authors.
darktable is free software; you can redistribute it and/or modify it under the terms of the GPL v3 or (at
your option) any later version.
darktable 2.3 2017-01-20 DARKTABLE(1)