– rants and facts – practical photography mostly



Early morning tips

– motivation to get up early. in view, and the app Photographer’s Ephemeris mentioned.




Scaling up images…

Sad to see that the SW is Windows only.


Many, many, many…

Photo -> Sketch or painting

Holograms? 3D in 2D, Lightfield photos printed…

Curves, curves, curves everywhere…

Digital Photos on Linux

A seized blog (last post April 11, 2008) that seems to hold some still useful information… I need to dig more!
It is here:

More recent:


Direct links:
– prevoius “Bibble”
  – Shotwell – Fotoxx

Color management:
Argyll CMS – basis for Ubuntu’s built in features, used by “gnome-color-management”
Oryanos and KCM

Hardware choice:
X-rite Colormunki – select the right version and you will calibrate all of your devices.
Datacolor’s “Spyder” tools are yet to be equally versatile, printer calibration lacks – and what is present requires Windows.

At present I’m running nvidia’s GTX 780 and a wide gamut monitor – in a multi-display setup, and found it very well working, still “need” to install their proprietary driver to be up to date – and there seem to be small issues with color profiles not being activated properly as it starts (a few clicks required each boot, for all but the initial display). Edit: look up the xorg-edgers ppa instead, updates no longer cause trouble.

Edit 2014-07-03: These are for nvidia drivers anv virtualbox, and better make sure they’re NOT on the last line – note “DUMMY”, this is the tool to have other things stay away from the last line. Finding out this was a tad of a chore, the issue with color profiles was caused by the nvidia-persistenced group being on the last line. I noticed it started working when I added virtualbox, but as *that* ended up on the last line USB was impossible to get working… With “DUMMY” (below) I have both working.

$ tail -n 4 /etc/group



Any shortcomings may be covered by running e.g. Oracle Virtualbox (Virtual machine) with a suitable Windows version installed: – Oracle VM VirtualBox

Current version is 4.3.12 – installing it on Ubuntu 14.04 LTS:
Edit 2014-07-03: Note, 4.3.12 is required for having shared clipboard actually work!

At the $ prompt of a bash shell (Terminal) type:

cat >
if ! grep -i virtualbox  /etc/apt/sources.list ;then
  sudo echo -e >/etc/apt/sources.list \
    "\n## oracle virtualbox\n" \
    "deb trusty contrib\n"
  echo "Virtualbox added into apt - sources.list"
  echo "Virtualbox present in apt - sources.list"

echo "$(tput smso)--- Oracle public key for apt-secure ---$(tput rmso)"
wget -q -O- | sudo apt-key add -
echo "$(tput smso)--- apt-get update ---$(tput rmso)"
sudo apt-get update
echo "$(tput smso)--- apt-get install VB+dkms ---$(tput rmso)"
sudo apt-get install virtualbox-4.3 && sudo apt-get install dkms

Press CTRL-D, and hit Enter

Then run it to actualy do the installation, with:

$ source

… the first “sudo” execution will ask for your password (to switch to super-user privileges)

To start, type “virtualbox &”  in the shell, or look up virtualbox with Dash app lens (Super +A) and drag the icon anywhere you wish (to have it visible next time) before you just click on it.

On Ubuntu Linux, a 16bit+ GIMP

NOTE: This is GIMP 2.9, as always odd-numbered versions are potentially unstable.


The source of this: is here

Open a terminal (CTRL-Alt+T), i.e. bash prompt, then type:

sudo add-apt-repository ppa:otto-kesselgulasch/gimp-edge
sudo apt-get update
sudo apt-get install gimp
sudo apt-get install gimp-resynthesizer


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