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.

In order to use the script below you need to install imagemagick and if you are using Windows you either have to install the cygwin environment or you would have to rewrite this simple script as a bat script. read more

Debugging ROS nodes started from launch file with Eclipse

December 14, 2014

Requirements

  • Imported ROS project into Eclipse workspace (see http://wiki.ros.org/IDEs 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

::CODECOLORER_BLOCK_9::

or add the following if you want to stay in the current started terminal.

::CODECOLORER_BLOCK_10::

2) Eclipse Debug Configuration

Add a new Eclipse debug run configuration for C/C++ Remote Application. Adjust the path to your C/C++ application binary, leave everything else default read more

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. read more

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

http://wiki.ros.org/hydro/Installation/Ubuntu

::CODECOLORER_BLOCK_18::

2. The basic building procedure is covered in the article below, but I will list all commands/steps I have used from this tutorial as well, together with links to resources which helped me solving problems and how I solved them. If you want to have an explanation of the steps, please refer to the provided links. read more

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) (http://www.ceh-photo.de/blog/?p=809 ) 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. read more

First Robotics Hackathon in Malaysia

April 30, 2013

It was a very, very awesome experience, even it was stressful for me to manage to give all the help the people needed.

But read more here:

http://news.mylaunchpad.com.my/lifestyle-entertainment/article/articleid/240547/youths-build-robots-to-protect-malaysian-shores read more

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. read more