Posts Tagged ‘Ubuntu’

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Yet Another OpenCV/Karmic error – symbol lookup error: /usr/local/lib/libhighgui.so.4

In: Ubuntu

4 Feb 2010

symbol lookup error: /usr/local/lib/libhighgui.so.4: undefined symbol: av_free_packet
To fix it simply make sure /usr/local/lib is in your library path by using the following command:
export LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH

February – Spaced

In: Software

4 Feb 2010

Howto fix: “error while loading shared libraries”

In: Linux

2 Feb 2010

While installing opencv on an older version of debian for work I kept getting an error while loading shared libraries which turned out to be a pretty easy fix, just finding the libraries and adding them to the dynamic linker.
The libraries I was having trouble with below:
./blobtrack: error while loading shared libraries: libcxcore.so.1: cannot open [...]

Error: Dependency is not satisfiable: libstdc++5 (Ubuntu Karmic)

In: Ubuntu

14 Dec 2009

Error: Dependency is not satisfiable: libstdc++5
This is a simple fix, just grab the libstdc++5 package for your architecture from here:
http://packages.debian.org/stable/base/libstdc++5

HowTo: Install Player/Stage in Ubuntu Karmic (9.10)

In: Software| Ubuntu

12 Dec 2009

You will need to have cmake and build-essentials installed:
sudo apt-get install cmake build-essential
How To Install Player:
Player provides a network interface to a variety of robot and sensor hardware. Player’s client/server model allows robot control programs to be written in any programming language and to run on any computer with a network connection to the robot. [...]

Start Up Times – Windows 7 vs Ubuntu Karmic

In: 7| Ubuntu

8 Dec 2009

Windows 7 vs. Ubuntu Karmic
57.7s – 30.4s

I Just saw the Windows 7 advert for how quick they have made Windows 7 boot so I did a simple test on my laptop by comparing the times taken to load up Windows 7 and Ubuntu Karmic, I loaded grub and stopped it loading either OS by pressing [...]

HowTo: Install OpenCV in Ubuntu Karmic (9.10)

In: Linux| Software| Ubuntu

2 Dec 2009

Yesterday I was having trouble installing OpenCV on Ubuntu Karmic, but now it’s compiled and loading programs with GUI’s .
Heres how I got it installed:
First install some needed packages
sudo apt-get install build-essential libgtk2.0-dev
Now you need to grab FFmpeg for the install to work
svn checkout svn://svn.ffmpeg.org/ffmpeg/trunk ffmpeg
The svn didn’t work for [...]

Problems Installing OpenCV in Ubuntu Karmic (9.10)

In: Linux| Software| Ubuntu

1 Dec 2009

UPDATE
I now have it working and wrote a guide of how I got it to work -
http://alexsleat.com/2009/12/02/howto-install-opencv-in-ubuntu-karmic-9-10/
END UPDATE
I found a great guide on getting OpenCV to install on Ubuntu Karmic (9.10) – http://ivkin.net/2009/11/installing-opencv-2-0-on-ubuntu-9-10-karmic-koala/
Most the comments show the guide works however I have a couple of problems:
Firstly when reloading the libraries to make opencv show up
ldconfig [...]

November – Docky

In: Linux| Screenshots| Ubuntu

25 Nov 2009

Enable Ctrl + Alt + Backspace to Restart X in Ubuntu Karmic

In: Ubuntu

20 Nov 2009

To enable Ctrl + Alt + Backspace to restart the X server under Ubuntu Karmic Koala (9.10) do the following:
System > Preferences > Keyboard
Then under “Layouts” click on the “Layout Options…” button to bring up a new window
About halfway down this list is the “Key sequence to kill the X server” clicking on that reveals [...]


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Hi, my name is Alex Sleat. On this site I will share my thoughts, ideas, things I find online and projects I'm doing at university or at home. I am currently studying Robotics BSc at the University of the West of England (UWE). I'm intrested in all things tech, web, gadgets, gaming, films and baseball.

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