Windows + wingw-w64 + CMake build OpenCV

Windows is very not recommended, please take off the pits as soon as possible

Related Downloads

• WINGW-W64 Project Address

• CMake website Address

• OpenCV website Address

Steps

1. Installation WinGW-W64 , CMake , OpenCV . Finally my directory is: C:\Tools\CMake , C:\Tools\MinGW-W64 , C:\Tools\OpenCV .

2. It is then C:\Tools\MinGW-W64\mingw64\bin added to the system variable.

3. Run C:\Tools\CMake\bin\cmake-gui.exe .

4. Click Browse Source Select C:/Tools/OpenCV/sources .

5. Click Browse Build Select C:/Tools/OpenCV/mingw-build . ( mingw-build created by yourself).

6. Click below Configure , select MinGW Makefiles , this operation will download a few files in the middle, take a long time.

7. After the progress bar has gone, the middle area will appear a lot of red, click again Configure , red all disappear.

8. The last point Generate can be.

9. Open with command line C:\Tools\OpenCV\mingw-build , run

mingw32-make.exe

The process time is longer, wait patiently 100% .

CMakeLists.txt configuration file for OpenCV project

cmake_minimum_required(VERSION 3.9)project(opencv)set(CMAKE_CXX_STANDARD 11)add_executable(opencv main.cpp)set(OpenCV_DIR "C:/Tools/OpenCV/mingw-build/install")set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake")find_package(OpenCV REQUIRED)include_directories(${OpenCV_INCLUDE_DIRS})target_link_libraries(opencv ${OpenCV_LIBS})

Common errors

1. invalid register for .seh_savexmm：

After the first point is finished Configure , enter in the above, Search cpu and then a CPU_DISPATCH configuration item appears, setting the Value value to null.

Windows + wingw-w64 + CMake build OpenCV