Opencv Linux
1. Get sourcecode download OpenCV_xx.tar
tar xvf ~/Downloads/OpenCV-2.3.1a.tar.bz2
cd OpenCV-2.3.1
#
#./configureはopencv 2.1以降は採用されず、cmakeを使用してconfigを構成できます.
# svn co https://code.ros.org/svn/opencv/trunk
2. configure opencv Cmake&&GCC
For example, if you downloaded the project to ~/projects/opencv, you can do the following:
Note: ..前のレベルのディレクトリ3.compile using gcc cd release make install notes: 3.1 download ffmpeg and build svn co svn://svn.mplayerhq.hu//ffmpeg/trunk ffmpeg ./configure --enable-shared --disable-yasm make sudo make install
Now you have to configure the library. First, open the opencv.conf file with the following code:
Add the following line at the end of the file(it may be an empty file, that is ok) and then save it:
Run the following code to configure the library:
Now you have to open another file:
Add these two lines at the end of the file and save it:
4. Test example g++ `pkg-config opencv --libs --cflags opencv` drawing.c -o drawing Note: 1. ``ここはセミコロンではなく、数字1キーの左の該当です. 2. sudo apt-get install libgtk2.0-dev pkg-config build_all.sh #!/bin/sh if [ $# -gt 0 ] ; then base=`basename $1 .c` echo "compiling $base" gcc -ggdb `pkg-config opencv --cflags --libs` $base.c -o $base else for i in *.c; do echo "compiling $i" gcc -ggdb `pkg-config --cflags opencv` -o `basename $i .c` $i `pkg-config --libs opencv`; done for i in *.cpp; do echo "compiling $i" g++ -ggdb `pkg-config --cflags opencv` -o `basename $i .cpp` $i `pkg-config --libs opencv`; done fi(原)error while loading shared libraries解決方法
tar xvf ~/Downloads/OpenCV-2.3.1a.tar.bz2
cd OpenCV-2.3.1
#
sudo apt-get install build-essential libgtk2.0-dev libavcodec-dev libavformat-dev libjpeg62-dev libtiff4-dev cmake libswscale-dev libjasper-dev #./configureはopencv 2.1以降は採用されず、cmakeを使用してconfigを構成できます.
# svn co https://code.ros.org/svn/opencv/trunk
2. configure opencv Cmake&&GCC
For example, if you downloaded the project to ~/projects/opencv, you can do the following:
cd ~/projects/opencv # the directory containing INSTALL, CMakeLists.txt etc.
mkdir release
cd release
cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D BUILD_PYTHON_SUPPORT=ON ..Note: ..前のレベルのディレクトリ3.compile using gcc cd release make install notes: 3.1 download ffmpeg and build svn co svn://svn.mplayerhq.hu//ffmpeg/trunk ffmpeg ./configure --enable-shared --disable-yasm make sudo make install
Now you have to configure the library. First, open the opencv.conf file with the following code:
sudo gedit /etc/ld.so.conf.d/opencv.conf Add the following line at the end of the file(it may be an empty file, that is ok) and then save it:
/usr/ local /lib Run the following code to configure the library:
sudo ldconfig Now you have to open another file:
sudo gedit /etc/ bash .bashrc Add these two lines at the end of the file and save it:
PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/usr/ local /lib/pkgconfig export PKG_CONFIG_PATH 4. Test example g++ `pkg-config opencv --libs --cflags opencv` drawing.c -o drawing Note: 1. ``ここはセミコロンではなく、数字1キーの左の該当です. 2. sudo apt-get install libgtk2.0-dev pkg-config build_all.sh #!/bin/sh if [ $# -gt 0 ] ; then base=`basename $1 .c` echo "compiling $base" gcc -ggdb `pkg-config opencv --cflags --libs` $base.c -o $base else for i in *.c; do echo "compiling $i" gcc -ggdb `pkg-config --cflags opencv` -o `basename $i .c` $i `pkg-config --libs opencv`; done for i in *.cpp; do echo "compiling $i" g++ -ggdb `pkg-config --cflags opencv` -o `basename $i .cpp` $i `pkg-config --libs opencv`; done fi
(原)error while loading shared libraries解決方法
2012年04月01日に執筆|分類:Opencv|7件のコメント
今日2回目のubuntuでopencvの開発環境を構成し、コンパイラ時にerror while loading shared libraries:libopencv_core.so.2.3:cannot open shared object file:No such file or directoryのエラー.
原因:このようなエラー表示が発生し、システムはxxxを知らない.soはどのディレクトリの下に置くか、このとき/etc/ldに置く.so.confにxxxを加える.soが存在するディレクトリ.
解決方法:/etc/ld.so.confに/usr/local/libという行を追加し、保存してから実行します:/sbin/ldconfig–v構成を更新すればいいです. ：sudo vi /etc/ld.so.conf
：/usr/local/lib
， ， ：sudo /sbin/ldconfig -v
これで、コンパイルできます!
：sudo vi /etc/ld.so.conf
：/usr/local/lib
， ， ：sudo /sbin/ldconfig -v