Mukund Sivaraman from banu.com held an interesting interview with Richard Hughes, the maker of the ColorHug colorimeter:

The ColorHug is a colorimeter that can be used to calibrate computer displays. It was created by Richard Hughes (hughsie). It is a fully open hardware project, and the design, drivers and …

Pascal de Bruijn wrote an extensive article about color management on Linux systems, covering basic explanations as well as the description of some tools.

There seems to be a lot of confusion about what color management is, what it is supposed to do, and most particularly how to use it on Linux.

Find the article …

Stefano Fornari has just released a new version of the book Digital photo development with darktable.

Version 1.1.1 is a maintenance update. The release fixes a number of typos and other small editorial changes suggested by the community.

Check out the pdf or packaged version and, as usual, send your comments and …

As most of you probably noticed by now, we released 0.9.3. The tar file can be found here: https://sourceforge.net/projects/darktable/files/darktable/0.9/darktable-0.9.3.tar.gz/download

Pascal updated his ppa for ubuntu here: https://launchpad.net/~pmjdebruijn/+archive/darktable-release or …

you might have noticed our equalizer tool, and been confused by it and the many controls. that’s probably partly because you didn’t see a similar thing before, we had to develop it first.

very short history

behind the ui is a powerful frequency domain processing technique, based on wavelets. the most …

different kind of saturation

there are many different ways of tuning saturation, darktable does offer a few alternative ways to alter saturation and the reason for this post is to clarify what they do and how they work. the image on left is the original untouched image used for the different examples below, use …

since i probably tend to make this more technical than any reader would like to, here’s the take home message:

• much faster import of folders
• much faster thumbnail creation for first-time images
• much improved scalability wrt concurrency
• much improved scalability wrt total number of images in your database …

we released version 0.9.2, with a few bugfixes on top of release 0.9.1. this is a new point release in the stable branch thus there are no new features, just

• updated translations
• tiling for memory hungry operations and as workaround for old opencl 1.0 drivers
• new color matrices and white balance presets
• a lot of …

we released version 0.9.1, with a few bugfixes on top of release 0.9. and 184 patches, among them

• new rawspeed, dcraw, libraw
• fixed various segfaults and deadlocks
• the pipeline is now more real HDR (unbounded color management, no more gamut clipping in between)
• fixed a nasty bug which could cause complete loss of …

For my final GSOC 2011 task, I set out to build a levels module for darktable, which would behave more or less like the levels tool in GIMP and similar image editors. The user sets a white point, black point, and middle grey point for their image on a histogram, and the tool …