updated for Linux on 2012-09-12 get the source version through svn : svn co https://pure-data.svn.sourceforge.net/svnroot/pure-data pure-data cd pure-data/trunk/externals/pix_opencv pix_opencv depends on OpenCV 2.x and >1.5 (for old externals) ===== GNU/Linux ===== (actually only tested in GNU/Linux Ubuntu) this new version requiered OpenCV 2.3, available with apt-get since 12.04 : apt-get install libopencv-dev libcv-dev libhighgui-dev for other systems, you must build the lib from source, see this : http://opencv.willowgarage.com/wiki/InstallGuide get the _SOURCES_ of the pd you are using and of the GEM that you are loading ( it might not work if the version is different ) cd into the package folder : cd pix_opencv configure the package with the appropriate command for your system : ./configure --with-pd= --with-gem= for example : ./configure --with-pd=/usr/local/pd --with-gem=/usr/local/pd/gem then, compile it : make clean make and put the *.pd_linux and *.pd files somewhere in Pd's path. You can add the current directory to the pd search path through Media->Preferences->Path ===== MAC OSX (intel and powerPC) ===== first install openCV MacOS framework download openCV private framework from http://www.ient.rwth-aachen.de/cms/software/opencv/ copy the provided OpenCV.framework folder in your /Library/Frameworks/ directory :: cp -Rf /Volumes/OpenCV\ Private\ Framework/OpenCV.framework /Library/Frameworks/ this will only install OpenCV 1.5 you need OpenCV 2.x to use recent pix_opencv externals you will find a step by step how to install it on Mac OSX here : http://opencv.willowgarage.com/wiki/Mac_OS_X_OpenCV_Port but this document is quite old... get the _SOURCES_ of the pd you are using and of the GEM that you are loading ( it might not work if the version is different ) cd into the package folder :: cd pix_opencv configure the package with the appropriate command for your system : ./configure --with-pd= --with-gem= for example : ./configure --with-pd=/usr/local/pd --with-gem=/usr/local/pd/gem then, compile it :: make clean make and copy the .pd_darwin to your externals folder :: cp *.pd_darwin /Applications/Pd-0.40.3-extended-20080315.app/Contents/Resources/extra/Gem/ for example