Darktable is a photography work-flow application, a virtual light table
and darkroom for photographers. It manages your digital negatives in a
database and lets you view them through a zoomable light table. It also
enables you to develop raw images and enhance them.

This project tries to fill the gap between the many excellent existing
free raw converters and image management tools (such as e.g. ufraw,
rawstudio, f-spot, digikam and shotwell). The user interface is built
around efficient caching of image metadata and mipmaps, all stored in a
database. The main focus is on user interaction, both in terms of a
smooth interface design as well as processing speed. High quality output
is also one of our goals.

All editing is fully non-destructive and only operates on cached image
buffers for display. The full image is only converted during export.
Raw image loading is done using libraw and rawspeed, high-dynamic range,
and standard image formats such as jpeg are also supported. The core
operates completely on floating point values, so Darktable can not only
be used for photography but also for scientifically acquired images or
output of renderers (high dynamic range).