一、
1.下载opencv源代码
2.安装编译依赖库
2.1 sudo apt-get update
2.2
sudo apt-get install cmake
sudo apt-get install libgtk2.0-dev
sudo apt-get install pkg-config
sudo apt-get install build-essential
sudo apt-get install libavcodec-dev
sudo apt-get install libavformat-dev
sudo apt-get install libswscale-dev
3.进入到OpenCV的文件夹中,创建一个build目录,进行编译
3.1.cd opencv-3.4.10
3.2.mkdir build
3.3.cd build
3.4.cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local ..
3.5.make
3.6.sudo make install
4.编译完成使用
4.1 一种是配置路径
1.opencv的头文件:/usr/local /include
2.lib 文件,在编译build文件下 :opencv-3.4.10/build/lib
二、
.pro添加opencv库文件
QT += core gui greaterThan(QT_MAJOR_VERSION, 4): QT += widgets CONFIG += c++11 # The following define makes your compiler emit warnings if you use # any Qt feature that has been marked deprecated (the exact warnings # depend on your compiler). Please consult the documentation of the # deprecated API in order to know how to port your code away from it. DEFINES += QT_DEPRECATED_WARNINGS # You can also make your code fail to compile if it uses deprecated APIs. # In order to do so, uncomment the following line. # You can also select to disable deprecated APIs only up to a certain version of Qt. #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0 SOURCES += main.cpp mainwindow.cpp HEADERS += mainwindow.h FORMS += mainwindow.ui # Default rules for deployment. qnx: target.path = /tmp/$${TARGET}/bin else: unix:!android: target.path = /opt/$${TARGET}/bin !isEmpty(target.path): INSTALLS += target unix:!macx: LIBS += -L$$PWD/thirdpart/lib/ -lopencv_calib3d -lopencv_core -lopencv_dnn -lopencv_features2d -lopencv_flann -lopencv_highgui -lopencv_imgcodecs -lopencv_imgproc -lopencv_ml -lopencv_objdetect -lopencv_photo -lopencv_shape -lopencv_stitching -lopencv_superres -lopencv_ts -lopencv_video -lopencv_videoio -lopencv_videostab INCLUDEPATH += $$PWD/thirdpart/include DEPENDPATH += $$PWD/thirdpart/include
#include "mainwindow.h" #include <QApplication> #include "opencv2/opencv.hpp" int main(int argc, char *argv[]) { QApplication a(argc, argv); // MainWindow w; // w.show(); // read an image cv::Mat image = cv::imread("/home/likewei/Project/OpencvDemo/color3.jpg", 1); // create image window named "My Image" cv::namedWindow("My Image"); // show the image on window cv::imshow("My Image", image); return a.exec(); }