Hello Linux Geeksters. As you may know, LightZone is a free image editing program, similar to DarkTable, and a good alternative for Adobe Lightroom, which is proprietary software. It has support for the most popular image formats, RAW included and may be a good choice. The latest version available is LightZone 4.0.
In this article I will show you how to install LightZone 4.0 on Ubuntu 14.04 Trusty Tahr, Ubuntu 13.10 Saucy Salamander, Ubuntu 13.04 Raring Ringtail, Ubuntu 12.10 Quantal Quetzal, Ubuntu 12.04 Precise Pangolin, Linux Mint 16 Petra, Linux Mint 15 Olivia, Linux Mint 14 Nadia, Linux Mint 13 Maya, Pear OS 8, Pear OS 7 and Elementary OS 0.2 Luna.
Because it is available via PPA, installing LightZone 4.0 on the listed Ubuntu, Linux Mint, Pear OS and Elementary OS systems is easy. All you have to do is add the ppa to your system, update the local repository index and install the lightzone package. Like this:
$ sudo add-apt-repository ppa:otto-kesselgulasch/lightzone
$ sudo apt-get update
$ sudo apt-get install lightzone
Thank you Otto for the tip!