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        First of all, install all the needed packages:
<source lang="bash">apt-get install subversion libcv1 libcvaux1 libcvaux-dev libcv-dev libhighgui1 libhighgui-dev \
opencv-doc python-opencv cmake libcv-dev libhighgui-dev libavcodec-dev libavcodec51 \
libavutil-dev libglut3-dev glutg3-dev libavcodec-dev libavcodec51 libavutil-dev</source>

== Fixing opencv ==

Opencv hasn't been updated on Debian and is using a deprecated function img_convert belonging to ffmpeg that<span class="plainlinks">[http://www.smokelessecigarettereviews.com/safe-cig-review <span style="color:black;font-weight:normal;text-decoration:none!important;background:none!important; text-decoration:none;">safe cig electronic cigarette review</span>]</span> the [http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=490700 bug has been filed].

At the moment you can [http://kambing.ui.edu/gentoo-portage/media-libs/opencv/files/opencv-1.0.0-cvcapffmpegundefinedsymbols.patch apply a patch]:

# Make sure you have in your sources.list sources repos.
<source lang="bash">apt-get source libhighgui1
sudo apt-get build-dep libhighgui-dev
cd opencv-1.0.0
wget http://kambing.ui.edu/gentoo-portage/media-libs/opencv/files/opencv-1.0.0-vcapffmpegundefinedsymbols.patch
patch -p0 < opencv-1.0.0-cvcapffmpegundefinedsymbols.patch
cd ..;dpkg-buildpackage libhighgui1
sudo dpkg -i libhighgui*.deb</source>

Now you'll be able to continue the usual compilation.  Here we have all the requisites even those to build the cool '''smoke''' sample.

== oscpack installation(optional) ==
Get the sources, they are patched to compile on gcc4.3, the original package lacks some includes and do not compile with gcc4.3.
<source lang="bash">wget http://sulaco.devnull.li/~ikks/touchlib/oscpack1.0.2.tar.bz2</source>
<source lang="bash">make</source>

== touchlib installation ==
<source lang="bash">svn co http://touchlib.googlecode.com/svn/trunk/ multitouch
cd multitouch
cmake .
make
</source>

== Testing touchlib ==
you can run <source lang="bash">src/sampleapp</source> or <source lang="bash">src/configapp</source>

You should be able to run the smoke demo: <source lang="bash">demos/smoke/smoke</source> and if you installed oscpack : <source lang="bash">demos/oscpack/oscpack</source>.

== References ==
* http://www.dranger.com/ffmpeg/tutorial08.html
* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=490700
* http://kambing.ui.edu/gentoo-portage/media-libs/opencv/files/opencv-1.0.0-cvcapffmpegundefinedsymbols.patch
* http://sulaco.devnull.li/~ikks/touchlib/oscpack1.0.2.tar.bz2
* http://touchlib.googlecode.com/svn/trunk/

[[Category:OpenCV Tutorials]]
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