QT5.13.0编译opencv4.5驱动办法

1、软件安装

1.1 Python安装路径:C:\Users\Administrator\AppData\Local\Programs\Python\Python38-32    安装包：python3.8.exe
1.2 QT安装路径:C:\Qt\Qt5.13.0    安装包：opencv-4.5.0-vc14_vc15.exe
1.3 CMake安装路径:C:\Program Files\CMake  安装包：cmake-2.8.12.2-win32-x86.exe
1.4 Java安装路径:C:\Program Files\Java\jdk-18.0.1 安装包：JavaSEDevelopmentKit.exe

2、环境变量配置

C:\Program Files\CMake\bin;

C:\Qt\Qt5.13.0\5.13.0\msvc2017\bin;

C:\Qt\Qt5.13.0\5.13.0\mingw73_32\bin;

C:\Qt\Qt5.13.0\Tools\mingw730_32\bin;

C:\opencv\build\x64\vc15\bin;

C:\Qt\Qt5.13.0\5.13.0\mingw73_64\bin;

C:\Qt\Qt5.13.0\Tools\mingw730_64\bin

3、打开CMake软件进行配置

 点击 Configure，设置编译器
Specify the generator for this project: MinGW Makefiles
Specify native compilers
Next
Compilers C: C:/Qt/Qt5.13.0/Tools/mingw730_64/bin/gcc.exe
Compilers C++: C:/Qt/Qt5.13.0/Tools/mingw730_64/bin/g++.exe
Finish

设置源码位置：C:/opencv/sources

设置生成项目位置：C:/opencv/build_mingw

WITH_OPENGL    勾选
WITH_QT    不勾选
OPENCV_VS_VERSIONINFO_SKIP 勾选
OPENCV_ENABLE_ALLOCATOR_STATS    不勾选
WITH_OPENCL_D3D11_NV 不勾选
其中：OPENCV_VS_VERSIONINFO_SKIP需要点击Add Entry按钮手工新增,OPENCV_VS_VERSIONINFO_SKIP BOOL 1.

 4、下载必要文件到指定位置

C:\opencv\build_mingw\3rdparty\ffmpeg\ffmpeg_version.cmake
C:\opencv\build_mingw\3rdparty\ffmpeg\opencv_videoio_ffmpeg.dll
C:\opencv\build_mingw\3rdparty\ffmpeg\opencv_videoio_ffmpeg_64.dll

5、编译项目文件：
在CMake软件界面点击两次Configure后再点击Generate后，可以cmd窗口中跳转到到指定目录，执行下面命令：
C:\opencv\build_mingw>mingw32-make -j 8
C:\opencv\build_mingw>mingw32-make install