Everyone can install Opencv C++ follow as:
Step 1: Update the ubuntu system packages
sudo apt-get update && sudo apt-get upgrade
Step 2: Install required tools and packages
sudo apt-get install build-essential cmake git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev
Step 3: Download Opencv sources using git
sudo -s
cd /opt
git clone https://github.com/Itseez/opencv.git
git clone https://github.com/Itseez/opencv_contrib.git
Step 4: Building and Install OpenCv
cd opencv
mkdir release
cd release
cmake -D BUILD_TIFF=ON -D WITH_CUDA=OFF -D ENABLE_AVX=OFF -D WITH_OPENGL=OFF -D WITH_OPENCL=OFF -D WITH_IPP=OFF -D WITH_TBB=ON -D BUILD_TBB=ON -D WITH_EIGEN=OFF -D WITH_V4L=OFF -D WITH_VTK=OFF -D BUILD_TESTS=OFF -D BUILD_PERF_TESTS=OFF -D OPENCV_GENERATE_PKGCONFIG=ON -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D OPENCV_EXTRA_MODULES_PATH=/opt/opencv_contrib/modules /opt/opencv/
make -j4
make install
ldconfig
exit
cd ~
Step 5: Find and Set "opencv.pc" file path
ls /usr/local/lib/pkgconfig/
sudo cp /usr/local/lib/pkgconfig/opencv4.pc /usr/lib/x86_64-linux-gnu/pkgconfig/opencv.pc
Step 6: Check Opencv version
pkg-config --modversion opencv
Step 7: Compile and run test.cpp
-
Compile code:
g++ test.cpp -o test -std=c++11 `pkg-config --cflags --libs opencv` -
Execute code:
./test