Contributors:

• Dariusz Duma (G+, blog, PPA): packager, blogger and beta tester
• Joermungand (G+, AUR): packager and beta tester
• Olivier Samyn (homepage, COPR): packager and beta tester
• Andreas Katifes (G+): beta tester, tutorial maker and motivation booster
• Patrick depoix (G+): French translator

Index:

• Installation instructions

• Useful editing presets

• Current status

• Screenshots

• Tutorials

• Non-destructive Orton effect in PhotoFlow

• How to process a RAW image in PhotoFlow

• How to match the Nikon in-camera jpeg colors with PhotoFlow

• Creating and using luminosity masks with PhotoFlow (inspired from Patrick David's blog)

• Using the "Curves" tool in PhotoFlow

• Roadmap and development plans

The aim of the project is to provide a fully non-destructive photo retouching program that includes a complete workflow from RAW image development to high-quality printing.

Here is the general feature (whish)list:

• 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

Current status

PhotoFlow is in a early development stage. The present version allows to open an image file and apply basic editing filters via non-destructive adjustment layers. The individual layers can be activated and de-activated using the radio buttons on the right of the image. Moreover, the layers structure can be saved to disk and re-opened again via the command line.

Screenshots

Here is a screenshot showing the Curves tool applied to an image to increase the contrast:

Tutorials

You can download the sample files used in the tutorials from here.

• Sky enhancement

Roadmap and development plans

The following list shows what features are currently planned or being implemented, in a kind of priority order:

• Implement colorpsace conversions based on ICC profiles (partly implemented already)

• Allow re-ordering of existing layers via drag&drop

• Complete the list of supported blending modes