Open Source Lazarus Photo Editors

Main idea here is that you can use Nik Plugins stand-alone without officially supported 3rd party host application (Lightroom, Photoshop, Spark, Portfolio). On Windows or Linux. Source code can be compiled natively for Linux or for Windows with Lazarus IDE. The program is dedicated to Ubuntu users, where you can install Nik Collection using wine. On Ubuntu you can either use native Linux version, or native Windows version running via wine. In fact, currently the latter is recommended, because there are some UI glitches related to gtk widgetset if you compile for Linux - the UI looks better in native Windows version (this can be fixed in the future). Even if you use native Windows version on Linux via wine, the app will be aware of wine and will still be integrated with your Ubuntu desktop and will be integrated with supported apps on it, like Gimp, Pinta, Darktable, Nautilus, etc. It will still talk to your shell, and provide all the integration with your Linux.

This started as a simple image to ascii converter. However it has evolved into a much more complete ascii art suite. It has many features, including image adjustments, brighness, contrast, proportions) several image libraries, drawing and editing tools, a command line tool and more. The interface has been designed with special care, to include all tools in an easy and understandable way.