As you may know, PhotoFlow is an open-source, non-destructive photo editing software for adjusting photos from RAW images to high-quality printing.

Main features:
- Fully non-destructive, layer-based photo editing workflow with realtime preview of the final image
- Support for 8-bits and 16-bits integer as well as 32-bits and 64-bits floating point precision, selectable at runtime and on a per-image basis
- Plugin-based architecture: new tools can be implemented as separate modules that are loaded at runtime
- Allows to load and edit images of arbitrary size, thanks to the underlying rendering engine based on the VIPS library
- Fully color managed workflow: user-defined input, work and output profiles, soft-proofing, etc…
- Support for layer grouping and layer masks
- Support for common photo editing tools: levels, curves, brightness-contrast control, blurring, sharpening, cropping, resizing, colorspace conversions, etc…, all implemented in the form of image layers
- User-friendly interface to develop new tools and image filters as external plugins
In this article I will show you how to install Photoflow Git, which is the unstable version of the software. While it is not as stable as the regular version, it is the first to receive new features.
Installation instructions:
Up to date Photoflow Git packages are available via some third party PPA, so installing
the software on Ubuntu 15.10 Wily Werewolf, Ubuntu 14.04 Trusty Tahr, Linux Mint 17.x and Elementary OS 0.3 Freya systems is easy.
Just add the PPA to your system, update the local repository index and install the photoflow package:
$ sudo add-apt-repository ppa:dhor/myway
$ sudo apt-get update
$ sudo apt-get install photoflow
Optional, to remove photoflow, do:
$ sudo apt-get remove photoflow