Released darktable 1.6

We are happy to announce that almost after one year darktable 1.6 has just been released.

The release notes and relevant downloads can be found attached to this git tag:
Please only use our provided packages (green buttons tar.xz and dmg) not the auto-created tarballs from github (grey buttons, zip and tar.gz). The latter are just git snapshots and will not work! Here's the direct link to tar.xz:

If you are using any distribution's packages, please be patient for the packager to catch up and provide the relevant updates.

Thanks to our great community and all the contributors for making this possible!
See the development visualised:

Enjoy the release!

New features:


  • high DPI monitor support
  • signed OSX packages
  • map view now allows to only show images from the current collection on the map
  • slideshow
  • darktable-cli now works without a running X server for use on headless systems
  • support for audio notes playback
  • sticky preview
  • added the option to overwrite files when exporting to disk
  • crawler that syncs all xmp files on start
  • support huge images (> 32 bit pixel index). darktable can open 26770x13385 TIFFs and should in theory be able to process arbitrary sized images. don't try this on a 32 bit system though!
  • lens iop presets are copy/pastable between different images


  • tiff read/write rewritten, works on 32-bit float now, supports compression
  • allow setting PPI for exported JPEGs, defaulting to 300
  • pwstorage libsecret
  • use HTTPS when exporting to flickr


  • new defringe image operation
  • automatic mode for levels module
  • allow to disable white balance
  • new colour reconstruction mode for highlight recovery that tries to add both colour and structure to clipped areas. thanks to a1ex from magic lantern!
  • better basecurve tool to create basecurves from raw/jpg pairs
  • soft boundaries in sliders (right click and type 8 in exposure compensation for example)
  • input colour gamut mapping to avoid problems with saturated blues causing purple artefacts


  • color conversion speedup (openmp for lcms2 case)
  • add linear Rec2020 as a build-in profile
  • embedded icc profile support for png/tiff (read/write)

lua scripting:

  • copy, move, reset and delete images via lua
  • handle progress bars via lua
  • limited manipulation of libs an views UI via lua
  • import and export styles via lua
  • trigger lua when the grouping mode changes
  • trigger lua when the overlay mode changes
  • trigger lua when the active view changes
  • manipulate snapshots via lua
  • handle more types of preferences, including enums, directories and file names
  • lua API is now versioned: use darktable.configuration.check_version to check
  • lua API incompatibilities: darktable.modules has been removed, use darktable.new_format and darktable.new_storage to access the constructors

performance improvements:

  • many speed improvements by adding sse code for image operations
  • make white balance work faster
  • make invert work faster
  • much faster exr export with optional compression (multicore support)
  • speedup of pfm writing
  • speedup of amaze. it is still slow but not as bad as it used to be

internal improvements:

  • module parameter introspection
  • clang/address-sanitizer/etc compiler warnings fixed
  • flip iop used for raw auto-orientation (simplifies code)
  • complete rawspeed migration for raw loading

bug fixes:

  • hdr bracketing fixes
  • masks cleanup and bugfixes
  • correct lens detection for compact cameras
  • avoid clipping in vignette, lowpass, shadows & highlights, a/b channels of colorcontrast and tonecurve

new cameras supported!

  • initial support for x-trans sensors
  • new demosaicing algorithms: markesteijn for x-trans and vng for x-trans and regular bayer raws
  • There is support for several dozens of new cameras, and loads of new noise profiles for denoising have been added. Check out the full list in the release notes on github.

and of course also:

  • updated usermanual
  • lots of small performance improvements and code cleanup

87 thoughts on “Released darktable 1.6

  1. Thank you so much for tremendous hard work.
    I got an error with this new final version during compile:

    Missing xml2po. No localized usermanuals are build
    Missing xml2po
    Can NOT update usermanual

    I had just checked out git earlier today (gb99d591) and built without issues and seems to be running fine.

    I do have libxml-dev installed

    I am on Debian 7 (32 bit) with PAE self compiled kernel.

    If there really aren’t any important changes from the last git checkout I did to this release I really don’t mind, I can stick with it without problems, maybe just in case someone else has this issue.

    Still a big HUGE THANK YOU! I love Darktable!

    Joe Giampaoli

    • One of the cmake configuration lines says:

      — Found LibXml2: /usr/lib/i386-linux-gnu/ (found suitable version “2.8.0”, required is “2.6”)

      If that helps somehow…


    • Oh, I wasn’t clear with this, but the build process does stops as an error, so continuing is not possible, otherwise I would just ignore the message. :)

    • for ubuntu you have to install gnome-doc-utils (xml2po), on OpenSUSE it’s in xml2po-0.20.10-5.1.1.noarch

    • @Ger
      Thanks. gnome-doc-utils is required for debian jessie. Also there is an error in the file name version-cmake.cmake. The last .cmake needs to be deleted.
      After the successful compile and install. I ran it, but the logo still says project-version.

    • You need to use tar.xz tarball, not tar.gz, as I already mentioned in this thread.

    • As parafin says, tar.xz is the correct tarball, compiles and does not stop with documentation error, just gives warning but continues to the end. Thanks parafin.

      You asked what the actual precise error was when I was trying to build from the tar.gz, it was the one I posted in my OT :

      Missing xml2po. No localized usermanuals are build
      Missing xml2po
      Can NOT update usermanual

      and it would stop there saying it couldn’t continue due to errors, but with the tar.xz it’s just a warning.


  2. Thanks for the update, terrific software! Is there a way to access an updated copy of the user manual? The version on the web site seems to be still 1.4. Thanks

  3. Great news! Thank you, really thank you, darktable Team!
    Your software is awesome and your customer care is great, also. Thank you for starting to support raws from my camera, Fujifilm Finepix HS50EXR.
    The software compiled flawlessly and is up and running on my Ubuntu 14.04 64bits.

  4. I have a bug since i use darktabled.

    if i create a snapshot, and zoom it image, the snapshot not zoom. I have a 1/2 of image zoom it, and the other 1/2 not zoom (snapshot)

    Congrulations for the upgrade! ^^ Great program!

    • That’s not a bug per se, that’s just how snapshot module works currently. You can’t zoom in, because DT only saves the image as displayed when you press the button. There are (were?) plans to redesign this feature so it would behave as you describe, but I’m not sure when can you expect that.

    • “LUT” are usually tied around destructive RGB based workflows.

      Darktable is nondestructive, and centred around Lab, which makes traditional LUT hard to integrate well, and ensure compatibility going forward.

      So it’s very unlikely we’ll try to implement LUT support anytime soon.

  5. Hi. Great tool, but I have problems with updating to version 1.6.0 on OS X / Yosemite 10.10.1:

    I was able to start the upgraded version, but after a short time there was a mismatch with the color layers (pictures with existing XMP-files with color alienation and extremely soft-focussed.

    After closing and restarting OS X the program did´t start up again (just jumping in the dock- finally the message: “Program not answering”). Same situation after going back to version 1.4.2.

    This means: darktable is no longer working at all on my Macbook…

    • First of all you can’t go back to 1.4.2 unless you restore old database (~/.config/darktable) from backup or start with a fresh one. Secondly – you can get more details about what’s happening by starting DT from Terminal: /Applications/ -d all
      Also you can get backtrace relevant to the hang by killing DT from Terminal: killall -SEGV darktable-bin
      My main suggestion would be to try moving away ~/.config/darktable and ~/.cache/darktable directories and see if the problem persists. Anyway website comments isn’t really the place for support or bug reporting, better use mailing list or/and redmine.

  6. Compiled and installed on Mageia 4 after installing the developer packages for lensfun etc. Uninstall the old DarkTable and then follow instructions to build and install.

    Right after install I started it, minimized it and had to make a shortcut etc. The executable and icons are in /opt/darktable/bin and /opt/darktable/icons.

    When I maximized it the interface wasn’t right. Closing and reopening it seems to have fixed it and I have played with it quite a lot.

    I used darktable-release-1.6.0.tar.gz and everything seems fine, but I’m going to look into getting the documentation installed because I’m fairly new to it and would like to learn the tricks that aren’t readily apparent.

    Great job, very nice program and is improving greatly! I tell everyone I know about it.

  7. Thanks for the new release! So far everything looks very good, except I miss the “Clarity (subtle)” preset in the equalizer module.

  8. Superb work. Thank you!
    Can we expect a PDF version of the 1.6 Online manual anytime soon?

    • Is all online. The PDF version as well as the HTML manual. Thanks to the tremendous work of Ulrich and Michael we have two brand new versions both in English and French. Enjoy!

    • Thank you, I have found it!
      Maybe a link from the Online Manual page would make it a little easier.

  9. Yeah, great! Darktable is my favorite tool for processing my raws.

    For distortion correction, I saw that RawTherapee can extract the correction info out of the JPEG embedded in the raw file, and apply this correction to the raw file:
    Like this, you can have the distortion correction from the camera producer and do not need to rely on lensfun.

    Has darktable a similar feature or is such a feature planed for the future?

    • Besides the fact that I doubt we’ll have time to implement this any soon…

      I’m not sure if I like the approach much, while clever, it only fixes distortion correct as far as I can tell. And it’s also very dependant on how well this detection process works. We have an automatic CA correction plugin as well, and that’s a hit and miss affair. Non-parameterized approaches tend to not be too reliable.

      Lensfun (given good calibration data) is quite reliable and more importantly contributed lens data, will not just benefit Darktable, but also UFRaw, RawStudio, Hugin, GIMP and Digikam.

      So I think Lensfun is the right approach to begin with. It’s just sad so few people contribute lens data.

      But on the other hand, through efforts of Thorsten Bronger, there has been an uptake in new lens data recently:

  10. Really working well the latest v1.6 version I personally think a tool is a little mismated as word it’s absolutly a big featered program well done you all :-) +10

  11. Great work. Thanks for the new release! But I have one quite big problem with the new release. With some images i get a text “unsupported input profile has been replaced by linear Rec709 RGB! darktable” when I open it in the darkroom. I can click it away. However if I try to use the tone curve module the text appears again and Darktable freezes. Is there a way to fix this?

    • Please run run Darktable from a terminal and keep and eye on the text output.

      Then file a bug in our Redmine bug tracker, including any terminal output darktable may have produced and also include a sample file with which the problem you have can be reproduced.

  12. Congratulations! I’ve been looking forward the next stable release for a while :)

    Thanks to the whole team for all their hard work!

  13. Amazing your great effort. Thanks, thanks, thanks…

    I have only a question for you: ¿Why can’t DT open the HDRMerge’s exported DNS (neither 16 bits nor 24 and 32)?

  14. all my raw files have been conrverted to adobe DNG.
    is there a good way to import lightroom DNG files?

    i know it maybe was not a godd decision ….


    • Darktable supports most well formed DNG files, but we can’t guarantee to support every nook and crany of the entire DNG specification.

      I’m not sure what you mean by “lightroom DNG” files.

      Converting original RAW files to DNG, is generally not something we would recommend, as the process of converting files to DNG is actually not guaranteed to be completely lossless. Occasionally original camera metadata (EXIF/MakerNote) might be lost.

      So it’s a risk you can easily avoid, with limited tangible benefit in return.

  15. after upgrading dt to 1.6 opencl does not work anymore. Ubuntu 14.04 LTS.

    [opencl_init] opencl related configuration options:
    [opencl_init] opencl: 1
    [opencl_init] opencl_library: ”
    [opencl_init] opencl_memory_requirement: 768
    [opencl_init] opencl_memory_headroom: 300
    [opencl_init] opencl_device_priority: ‘*/!0,*/*/*’
    [opencl_init] opencl_size_roundup: 16
    [opencl_init] opencl_async_pixelpipe: 0
    [opencl_init] opencl_synch_cache: 0
    [opencl_init] opencl_number_event_handles: 25
    [opencl_init] opencl_micro_nap: 1000
    [opencl_init] opencl_use_pinned_memory: 0
    [opencl_init] opencl_use_cpu_devices: 0
    [opencl_init] opencl_avoid_atomics: 0
    [opencl_init] opencl_omit_whitebalance: 0
    [opencl_init] could not find opencl runtime library ‘libOpenCL’
    [opencl_init] could not find opencl runtime library ‘’
    [opencl_init] found opencl runtime library ‘’
    [opencl_init] opencl library ‘’ found on your system and loaded
    [opencl_init] could not get platforms: -1001
    [opencl_init] FINALLY: opencl is NOT AVAILABLE on this system.
    [opencl_init] initial status of opencl enabled flag is OFF.

    I’ve tryed to symlink to /usr/lib/x86_64-linux-gnu/ but again it does not work

    [opencl_init] opencl related configuration options:
    [opencl_init] opencl: 1
    [opencl_init] opencl_library: ”
    [opencl_init] opencl_memory_requirement: 768
    [opencl_init] opencl_memory_headroom: 300
    [opencl_init] opencl_device_priority: ‘*/!0,*/*/*’
    [opencl_init] opencl_size_roundup: 16
    [opencl_init] opencl_async_pixelpipe: 0
    [opencl_init] opencl_synch_cache: 0
    [opencl_init] opencl_number_event_handles: 25
    [opencl_init] opencl_micro_nap: 1000
    [opencl_init] opencl_use_pinned_memory: 0
    [opencl_init] opencl_use_cpu_devices: 0
    [opencl_init] opencl_avoid_atomics: 0
    [opencl_init] opencl_omit_whitebalance: 0
    [opencl_init] found opencl runtime library ‘libOpenCL’
    [opencl_init] opencl library ‘libOpenCL’ found on your system and loaded
    [opencl_init] could not get platforms: -1001
    [opencl_init] FINALLY: opencl is NOT AVAILABLE on this system.
    [opencl_init] initial status of opencl enabled flag is OFF.



  16. Full screen freezes on Macbook Pro Retina 13″ after upgrading to 1.6.0.
    OpenCL never worked.

    Apart of these, I have to congrats with you for the amazing tool!

    • OpenCL support on OS X varies with video card, that’s why it’s disabled by default. But it seems to work fine on my MacBook Air.
      About fullscreen I can suggest to try to start with empty config by moving away ~/.config/darktable and ~/.cache/darktable and also setting screen_ppd_overwrite to 1.0 in ~/.config/darktable/darktablerc. If it still freezes, then you should create a bug report ( and include OS X crash log which you can acquire by running “killall -SEGV darktable-bin” in Terminal after you switch DT to fullscreen mode.

    • I tried removing all files in those directories but nothing changed. I noticed that the program does not really freezes but the UI does not update(as example: clicking on a module does not open its options but letting the cursor below it, tips of its controls appear). Also clicking on the green “+” button on titlebar, some components of the UI remain bigger than their containers.
      I do not understand the second part: how do I run that command while displaying DT in fullscreen?

  17. Great Christmas gift !
    C’est Noẽl avant l’heure !
    Merci et joyeuses fêtes à toute l’équipe.

  18. thanks

    I have just upgraded yesterday on my Ubuntu 14.04 distro. Flawless, openCl is happy!
    I know have to explore a bit more what’s new, and learn how to bias DT to put a bit less green in the white balance by default.