QT | Qt creator配置opencv記錄
安裝參考文章：用OT Creator配置opencv
QT下載地址：http://download.qt.io/archive/qt/
安裝版本：
Qt Creator 4.6.2(Qt 5.11.1 MinGW 32bit)
cmake 3.12.1
opencv-3.4.2.zip
安裝過程中遇到的問題記錄：
1、沒有新增MinGW的路徑到系統環境變數中。
2、recipe for target '3rdparty/protobuf/CMakeFiles/libprotobuf.dir/src/google/protobuf/stubs/io_win32.cc.obj' failed
參考：https://blog.csdn.net/asiwxy/article/details/80028825
3、下載opencv_ffmpeg.dll和opencv_ffmpeg_64.dll檔案被卡住
參考：https://blog.csdn.net/qq_38880380/article/details/78013056
4、error: 'sprintf_instead_use_StringCbPrintfA_or_StringCchPrintfA' was not declared in this scope
參考：https://blog.csdn.net/huihut/article/details/78701814
5、error: 'MFP_MEDIAITEM_CHARACTERISTICS' has not been declared
參考：https://stackoverflow.com/questions/50333886/opencv-installation-on-windows
When not using Visual Studio, you have to disable some features which are not supported. Build with cmake options WITH_IPP=OFF and WITH_MSMF=OFF
成功。
最後，感謝以上參考的貢獻者。