opencv入门（1）

傷城~ 2022-05-28 11:06 197阅读 0赞

基于Qt的opencv使用

1.pro

QT += core
    QT -= gui
    
    INCLUDEPATH += E:\opencv_3.2\build\install\include
    
    
                #E:\opencv_3.2\build\install\include\opencv\    这是较全的路径，因为在main中加入了opencv，故这里写到opencv即可
                #E:\opencv_3.2\build\install\include\opencv2\
                #E:\opencv_3.2\build\install\include
    
               # E:\opencv_3.2\opencv-3.2.0\include\opencv\      开始的错的一种
                # E:\opencv_3.2\opencv-3.2.0\include\opencv2\
                # E:\opencv_3.2\opencv-3.2.0\include
    
    LIBS += -LE:\opencv_3.2\build\install\x86\mingw\bin -lopencv_core320 -lopencv_highgui320 -lopencv_imgcodecs320
    #LIBS += E:\opencv_3.2\build\lib\libopencv_*      两种路径方式都可以，推荐上面一种
    #LIBS += E:\opencv_3.2\build\lib       不能写成这种
    
    #HEADERS    指定项目中的所有头文件  .h文件 此文件中没有
    CONFIG += c++11
    
    TARGET = 1            #指定目标文件的名称，自动生成
    CONFIG += console
    CONFIG -= app_bundle
    
    TEMPLATE = app
    
    SOURCES += main.cpp    #源文件
    
    # The following define makes your compiler emit warnings if you use
    # any feature of Qt which as 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 you use 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

注意：根据功能的不同，用到的库不同，要在libs下加入相应用到的库

source下的main.cpp

#include <stdio.h>
    
    #include <opencv2/opencv.hpp>
    
    using namespace cv;
    
    int main(int argc, char *argv[])
    {
        Mat image = imread("E:\\opencv_3.2\\image\\1.jpg");   // 要加
        if(NULL == image.data)
        {
            printf("*******\n");
            return -1;
        }
        namedWindow("image", CV_WINDOW_AUTOSIZE);
        imshow("image", image);
        waitKey(0);
        return 0;
    }

这样就可以显示出照片 1.jpg 来。