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Features at a glance

Key features include an astonishing graphical user interface designed for the modern computer user, support for importing single image files, folders, and scan for devices, ability to categorize images by numerous filters, such as ISO, color label, rights, creator, publisher, camera, date, time, title, lens, aperture, etc., as well as to access recently used collections.

Changes in this release of darktable 1.6.1:
General/Misc:

• High DPI monitor support
• 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

Output:

• 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

Darkroom:

• 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:

• 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
• Mew 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.

Others:

• Updated user-manual
• Lots of small performance improvements and code cleanup.

Darktable is a platform-independent application that runs on GNU/Linux, BSD, Solaris, and Mac OS X operating systems. Officially supported distributions of Linux include Debian, Ubuntu, Fedora, openSUSE, Arch Linux, Gentoo, Funtoo, Red Hat Enterprise Linux, CentOS, and SUSE Enterprise Linux.

To Install/Update Darktable 1.6.1 on Ubuntu 15.04 vivid Vervet, ubuntu 14.10 Utopic Unicorn, Ubuntu 14.04 Trusty Tahr (LTS), Ubuntu 13.10/13.04/12.04, Linux Mint 17.1 Rebecca, Linux Mint 17 Qiana, Linux Mint 13 Maya, Pinguy OS 14.04, Elementary OS 0.3 Freya, Elementary OS 0.2 Luna, Peppermint Five, Deepin 2014, LXLE 14.04, Linux Lite 2.0, Linux Lite 2.2 and other Ubuntu derivative systems via PPA, open a new Terminal window and bash (get it?) in the following commands:

It works well on both 32-bit and 64-bit architectures, but the developers recommend to use the application only on the 64-bit hardware platform for better performance

sudo add-apt-repository ppa:pmjdebruijn/darktable-release
sudo apt-get update
sudo apt-get install darktable exiv2

Our hope tutorial entitled "Darktable 1.6.1 released, install on Linux Ubuntu 15.04 vivid Vervet, ubuntu 14.10 Utopic Unicorn, Ubuntu 14.04 Trusty Tahr (LTS) and linux mint" can be useful for visitors or readers.