Batch processing – Resizing and embedding watermarks into images using ImageMagick for Windows and Linux

March 19, 2017

As a response to a recent question I came across, I want to share a simple bash script for embedding a watermark image/logo and resizing multiple images at the same time for online publishing.

Debugging ROS nodes started from launch file with Eclipse

December 14, 2014


  • Imported ROS project into Eclipse workspace (see for details)
  • Installed gdbserver (apt-get install gdbserver)

Follow the steps below.

1) Adjust the launch file:

Add this to the node tag if you want a new terminal window for the process

Enable full (Internet) VPN tunneling in Linux Network-Manager

September 12, 2014

I have successfully configured a VPN connection to my home router, thus, I was able to access machines in my private LAN. Moreover, I wanted to tunnel my whole Internet traffic over this connection. Even a google search could not answer, how to solve this with the network-manager which is used in most Linux desktops.

Building ROS hydro from source on Ubuntu 13.10 Saucy Salamander

February 25, 2014

This post will cover the steps I made to build ROS hydro successfully from source on my Ubuntu 13.10 amd64 with German localization settings.

1. Add repositories

Truecrypt performance test on Netgear ReadyNAS 102

January 1, 2014

Happy New Year everybody!

This follow up post to my last article about using Truecrypt on my ReadyNAS 102 (with  two Seagate Pipeline HD ST2000VM003 – 2 TB – 5900 rpm RAID 1) ( ) will examine the transfer performance while using Truecrypt.

read more

Truecrypt on Netgear ReadyNAS 100 series (Debian) with auto mount on attached keyfile thumb drive dongle

December 30, 2013

Since I own a Netgear ReadyNAS 102 I was wondering how I could use encryption for special content in a convenient way. Because the Netgear firmware does not provide an encryption feature inside its ReadyNAS OS wrapper on top of the underlying Debian Linux I decided to have a closer look on Truecrypt, which I already have in use on my other desktop and mobile computers.

Android-x86 for Acer 1825 and others development terminated

April 30, 2013

Many of you guys have maybe already thought, that I will not continue the Android-x86 development for the Acer 1825 and all the other laptops I was supporting as well in the mean time, because there was a long time without any updates. But actually the reason was, that since I am in Malaysia I had not much time to work on this and much more I did not have a proper machine for building. So my plan was to continue the development once I am back at home in Germany, what is actually very soon.

Android-x86 – Comments answered – Updates

September 15, 2012

Hi to all users of my Android-x86 build.

Sorry for long period without updates, news or answers. I was maximum busy. I am right now in Asia for a longer time, so development becomes more difficult, because I have only the Acer1825 for building and it is not as fast as my Desktop-PC. I try to release a new build as fast as I can.