C++ install and configure opencv project in ubuntu C++ install and configure opencv project in ubuntu

C++ install and configure opencv project in ubuntu is presented with content: Install JVM openjdk8jdk, install OpenCV, configure project for OpenCV, example. Invite you to consult the document details.

C++ INSTALL AND CONFIGURE OPENCV PROJECT IN UBUNTU Author: Nguyen Van Ca Distributed Computing and Networking Research Laboratory Email: nguyenvanca2110@gmail.com Content I II III IV Install JVM openjdk-8-jdk Install OpenCV Configure project for OpenCV Example I Intall open JDK sudo add-apt-repository ppa:openjdk-r/ppa sudo apt-get update sudo apt-get install openjdk-8-jdk sudo update-alternatives config java II Install OpenCV sudo apt-get upgrade sudo apt-get update sudo apt-get install cmake sudo apt-get install build-essential sudo apt-get install cmake git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev sudo apt-get install python-dev python-numpy libtbb2 libtbb-dev libjpeg-dev libpng-dev libtiff-dev libjasper-dev libdc1394-22-dev sudo apt-get install libgtk2.0-dev sudo apt-get install python-numpy mkdir release cd release cmake -D CMAKE_BUILD_TYPE=RELEASE -D BUILD_NEW_PYTHON_SUPPORT=ON -D CMAKE_INSTALL_PREFIX=/usr/local Or cmake -D CMAKE_BUILD_TYPE=Release -D CMAKE_INSTALL_PREFIX=/usr/local or cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D WITH_TBB=ON -D WITH_V4L=ON -D WITH_QT=ON -D WITH_OPENGL=ON -DCUDA_NVCC_FLAGS="-D_FORCE_INLINES" make 10 sudo make install III Configure for OpenCV project Debug Mode Creat new project: Hello C++ Click Properties of the project In C/C++ Build a Choise Setting: GCC C++ Complier  Includes b GCC C++ Complier  Includes Add new Path: /usr/local/include/opencv /usr/local/include/opencv2 Because when we make OpenCV have: -D CMAKE_INSTALL_PREFIX=/usr/local c GCC C++ Linker  Libraries Add: opencv_calib3d opencv_contrib opencv_core opencv_features opencv_flann opencv_gpu opencv_highgui opencv_imgproc opencv_legacy opencv_ml opencv_nonfree opencv_objdetect opencv_ocl opencv_photo opencv_stitching opencv_superres opencv_ts opencv_video opencv_videostab Release Mode is same with Debug Mode Build OpenCV in Command Line Complier g++ DS_OpenCV.cpp -o DS_OpenCV `pkg-config opencv cflags libs` And then type sudo ldconfig Run OpenCV in Command Line /DS_OpenCV CODE // Library of OpenCV #include #include #include #include #include //============================================== // Library of C++ #include #include #include #include #include #include #include #include //============================================== // Library of Socket #include #include #include using namespace cv; using namespace std; //============================================== //Declare Function to process string to_string(int i); void receiveImage(int sock, int idimage); void recognizeGender(Mat image, string hardKey); void sendPOST(string harwareKey, int id_gender); //============================================== //Declare global variables static int idImage = 0; static string face_cascade_name = "/usr/local/share/OpenCV/lbpcascades/lbpcascad e_frontalface.xml"; static string eyes_cascade_name = "/usr/local/share/OpenCV/haarcascades/haarcasc ade_eye_tree_eyeglasses.xml"; //String to create POST message static string man = "gender=man&nPersons=1&HK="; static string woman = "gender=woman&nPersons=1&HK="; static string crowed = "gender=crowed&nPersons=1&HK="; static static static static string length; string space = "\r\n\r\n"; string content, contentSend; int lengthContent; static const char* httpRequest1; static const char* httpRequest2; static const char* httpRequest3; static string httpRequest = "POST /xibocms/listener.php HTTP/1.1\r\n" "Host: dcn402.asuscomm.com \r\n" "Content-Type: application/x-www-formurlencoded\r\n" "Content-Length: "; // Can move to Main functions // begin -static Ptr model = createLBPHFaceRecognizer(); // Load Database trained //model->load("database_gender.xml"); //Create model to recognize Face // Detect Face to recognize static CascadeClassifier face_cascade; //face_cascade.load(face_cascade_name); static CascadeClassifier eyes_cascade; //eyes_cascade.load(eyes_cascade_name) //if (!face_cascade.load(face_cascade_name)) // printf(" (!)Error loading\n"); //if (!eyes_cascade.load(eyes_cascade_name)) // printf(" (!)Error loading\n"); //lbph_cascade.load(face_cascade_name); // Check for invalid input // end //============================================== // Main Function int main() { // Preprocessing for recognize face model->load("database_gender.xml"); face_cascade.load(face_cascade_name); eyes_cascade.load(eyes_cascade_name); //===================== //Socket to receive Image int sockfd, newsockfd, pid; socklen_t clilen; // For Local Network int portno = 22222; // For DCN Cloud //int portno = 20222 struct sockaddr_in serv_addr, cli_addr; sockfd = socket(AF_INET, SOCK_STREAM, 0); if (sockfd < 0) perror("ERROR opening socket"); bzero((char *) &serv_addr, sizeof(serv_addr)); serv_addr.sin_family = AF_INET; serv_addr.sin_addr.s_addr = INADDR_ANY; serv_addr.sin_port = htons(portno); if (bind(sockfd, (struct sockaddr *) &serv_addr, sizeof(serv_addr)) < 0) perror("ERROR on binding"); listen(sockfd, 10); clilen = sizeof(cli_addr); for (;;) { idImage++; newsockfd = accept(sockfd, (struct sockaddr *) &cli_addr, &clilen); if (newsockfd < 0) { perror("ERROR on accept"); exit(1); } // Create child process pid = fork(); if (pid < 0) { perror("ERROR on fork"); exit(1); } if (pid == 0) { /* This is the client process */ close(sockfd); receiveImage(newsockfd, idImage); exit(0); } else { close(newsockfd); } } } return 0; //============================================== void receiveImage(int newsockfd, int idimage) { //idImage++; cout