Alex Sleat
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Posts Tagged ‘howto’
Yet Another OpenCV/Karmic error – symbol lookup error: /usr/local/lib/libhighgui.so.4
In: Ubuntu
4 Feb 2010symbol 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
- No Comments
- Tags: av_free_packet, error, fix, howto, karmic, libhighgui.so.4, lookup, opencv, symbol, Ubuntu, undefined symbol
Howto fix: “error while loading shared libraries”
In: Linux
2 Feb 2010While 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 [...]
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- Tags: debian, dynamic, error, howto, lib, libavdevice.so.52, libraries, libxccore.so.1, linker, Linux, shared, Ubuntu
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. [...]
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 [...]
- (9) Comments
- Tags: 9.10, compile, computer vision, ffmpg, gtk, howto, install, karmic, Linux, machine vision, opencv, Ubuntu, vision
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 [...]
- (4) Comments
- Tags: 9.10, computer vision, howto, install, karmic, Linux, machine vision, opencv, Ubuntu, vision
Enable Ctrl + Alt + Backspace to Restart X in Ubuntu Karmic
In: Ubuntu
20 Nov 2009To 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 [...]
Great guide by wootah from the ubuntuforums.org of how to get the wireless receiver for PC working under linux, using the Userspace Xbox/Xbox360 USB Gamepad Driver for Linux from grumbel. It works pretty much perfectly, I use it as a remote to control my laptop when it is displayed on my TV.
Supported Controllers
Original Xbox controllers [...]
Gareths Guide to Home PCB Etching
In: Hardware| Miscellaneous
2 Nov 2009My house-mate has published his guide to home PCB etching and it can be found at the following link, it works great and pretty cheap too once you have everything setup – http://gareth-griffiths.co.uk/?page_id=31
My Ubuntu 9.10 Post Installation Guide (64-bit)
In: Ubuntu
2 Nov 2009MP3/Flash/DVD
sudo apt-get install ubuntu-restricted-extras
Music Applet
sudo apt-get install music-applet
Banshee
sudo apt-get install banshee
Mirage – Banshee Plugin
sudo apt-get install banshee-extension-mirage
Before Mirage can be used you need to make it scan your music so in Banshee Tools->Mirage Playlist Generator->Rescan the Music Collection as shown below
dockbarX
sudo add-apt-repository ppa:dockbar-main
sudo apt-get update && sudo apt-get install [...]
About
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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