初次使用QT,安装时就遇到了一些问题,调试加整理文件用了三天,现在总结出来,希望有所帮助。
    
     最终选择版本:
    
   
    
     Windows7+Qt5.9.3(包含QtCreator4.4.1)+VS2013+OpenCV3.3.0+cmake3.10.0
    
   
一、 Qt及QtCreator的下载与安装
    在资源下载页面(
    
     http://download.qt.io/archive/qt/
    
    )进行下载,这里罗列了多有可用版本,便于选择。根据自己的开发需要,我们这里下载的版本是:qt-opensource-windows-x86-5.9.3.exe
   
二、 QT安装
    
    
   
运行qt-opensource-windows-x86-5.9.3.exe,下一步即可;
    
   
Skip即可;
    
   
直接点击下一步;
    
   
选择好安装文件夹,建议不要将QT安装在C盘,其他保持默认即可,点击下一步;
    下一步是根据需要选择组件,相关的选择标准请参照链接:
    
     https://jingyan.baidu.com/article/656db918d9292ae380249c4f.html
    
   
我们这里勾选了MinGW及VS(msvc2013)相关的编译器;Tools全部进行了勾选。
接着,在打开的页面中勾选“我已阅读并同意条款”,然后一路下一步,直到安装完成就可以了。
等待至安装完成。
三、 三、QT creator打开与创建
安装好的QT5.9.3直接包含qt creator4.4.1在内,打开qt creator4.4.1。
    
    
   
点击工具——>选项——>构建与运行——>构建套件——>选择系统自动检测出的编译器并配置编译器如图所示:
    
   
点击ok。
新建项目进行编程操作即可。
四、 VS2013与opencv3.3.0配置
    
     参考链接如下:
    
   
    (1)
    
     http://blog.csdn.net/jinian2614/article/details/78176704
    
   
(2)为方便实现永久配置,配置OpenCV3.3动态链接库及以后的操作,参照第二个链接如下:
    
     http://blog.csdn.net/amusi1994/article/details/76768775?locationNum=10&fps=1
    
   
    
     五、
    
    QT5.9.3与opencv3.3.0配置
    
    
   
    
     参考链接如下:
    
   
    
     https://wiki.qt.io/How_to_setup_Qt_and_openCV_on_Windows
    
    (windows下QT5.9.3与opencv3.3.0配置)需要注意的的地方是,在configure cmake对opencv产生解决方案前,需将cmake的路径:D:\opencv\cmake-3.10.0-rc1-win64-x64\bin(
    
     才开始因解压时未注意,路径为
    
    
     D:\opencv\cmake-3.10.0-rc1-win64-x64\cmake-3.10.0-rc1-win64-x64\bin
    
    
     ,当用此路径时,或许因路径过长,无法进行
    
    
     cmake configure
    
    )
   
及MinGW的路径:D:\Qt\Qt5.9.3\5.9.3\mingw53_32\bin与D:\Qt\Qt5.9.3\Tools\mingw530_32\bin 这三个环境变量都添加至系统环境变量的path中,才能进行的了configure操作。其余详细参照以上链接操作即可。更改QT中文件代码如文件《opencv在QT中配置代码》,详细如下:
    
     modify the .pro file like this:
    
   
     
      #————————————————-
     
    
     
      #
     
    
     
      # Project created by QtCreator2017-03-05T12:30:06
     
    
     
      #
     
    
     
      #————————————————-
     
    
     QT
     
      +=
     
     core gui
    
     greaterThan(QT_MAJOR_VERSION,
     
      4
     
     )
     
      :
     
     QT
     
      +=
     
     widgets
    
     TARGET
     
      =
     
     opencvtest
    
     TEMPLATE
     
      =
     
     app
    
     
      # The following define makes yourcompiler emit warnings if you use
     
    
     
      # any feature of Qt which as been markedas deprecated (the exact warnings
     
    
     
      # depend on your compiler). Pleaseconsult the documentation of the
     
    
     
      # deprecated API in order to know how toport your code away from it.
     
    
     DEFINES
     
      +=
     
     QT_DEPRECATED_WARNINGS
    
     
      # You can also make your code fail tocompile if you use deprecated APIs.
     
    
     
      # In order to do so, uncomment thefollowing line.
     
    
     
      # You can also select to disabledeprecated 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
    
    
     INCLUDEPATH
    
    +=D:\opencv\OpenCV_QT\install\
    
     include
     
      #
     
     注意该路径为编译后install内的路径,且该路径不能有空格,不能写错,要仔细
    
   
    
     LIBS
    
    +=D:\opencv\OpenCV_QT\bin\libopencv_core330.dll
   
    
     LIBS
    
    +=D:\opencv\OpenCV_QT\bin\libopencv_highgui330.dll
   
    
     LIBS
    
    +=D:\opencv\OpenCV_QT\bin\libopencv_imgcodecs330.dll
   
    
     LIBS
    
    +=D:\opencv\OpenCV_QT\bin\libopencv_imgproc330.dll
   
    
     LIBS
    
    +=D:\opencv\OpenCV_QT\bin\libopencv_features2d330.dll
   
     
      LIBS
     
     +=D:\opencv\OpenCV_QT\bin\libopencv_calib3d330.dll
    
     
      # more correct variant, how setincludepath and libs for mingw
     
    
     
      # add system variable:OPENCV_SDK_DIR=D:/opencv/build
     
    
     
      # read http:
     
     
      
       //doc.qt.io/qt-5/qmake-variable-reference.html#libs
      
     
    
     
      #INCLUDEPATH += $$(OPENCV_SDK_DIR)/include
     
    
     
      
       #LIBS +=-L$$(OPENCV_SDK_DIR)/x86/mingw/lib \
      
     
    
     
      #       -lopencv_core320        \
     
    
     
      #       -lopencv_highgui320     \
     
    
     
      #       -lopencv_imgcodecs320   \
     
    
     
      #       -lopencv_imgproc320     \
     
    
     
      #       -lopencv_features2d320  \
     
    
     
      #       -lopencv_calib3d320
     
    
    
     and modify mainwindow.cpp like this:
    
    
     (测试代码)
    
   
     
      #include
     
     
      
       “mainwindow.h”
      
     
    
     
      #include
     
     
      
       “ui_mainwindow.h”
      
     
    
     
      #include
     
     
      
       <opencv2/core/core.hpp>
      
     
    
     
      #include
     
     
      
       <opencv2/highgui/highgui.hpp>
      
     
    
     MainWindow
     
      ::
     
     MainWindow(QWidget
     
      *
     
     parent)
     
      :
     
    
QMainWindow(parent),
     ui(
     
      
       new
      
     
     Ui
     
      ::
     
     MainWindow)
    
     {
     
    
     ui
     
      ->
     
     setupUi(
     
      
       this
      
     
     );
    
     
      
       // read an image
      
     
    
     cv
     
      ::
     
     Mat image
     
      =
     
     cv
     
      ::
     
     imread(
     
      “d://1.jpg”
     
     ,
     
      1
     
     );
    
     
      
       // create imagewindow named “My Image”
      
     
    
     cv
     
      ::
     
     namedWindow(
     
      “My Image”
     
     );
    
     
      
       // show theimage on window
      
     
    
     cv
     
      ::
     
     imshow(
     
      “My Image”
     
     , image);
    
}
     MainWindow
     
      ::~
     
     MainWindow()
    
     {
     
    
     
      
       delete
      
     
     ui;
    
}
笔者因为粗心,在前面.pro文件中的
    
     INCLUDEPATH
    
    +=D:\opencv\OpenCV_QT\install\
    
     include    路径中复制入了空格,运行时始终提示
     
      
       opencv2/core/core.hpp…NO such file 等信息,无法运行成功,一定要仔细。
      
     
    
   
 
