在终端中输入
brew install opencv2、OpenCV安装目录
新版MacOS(12.4)下，brew的安装位置在 /opt/homebrew
3、遇到的错误- cmake报错
====================[ Build | all | Debug ]=====================================
/Applications/CLion.app/Contents/bin/cmake/mac/bin/cmake --build /Users/kyros/CLionProjects/games/cmake-build-debug --target all -- -j 6
CMake Error at Assignment1/CMakeLists.txt:5 (find_package):
By not providing "FindOpenCV.cmake" in CMAKE_MODULE_PATH this project has
asked CMake to find a package configuration file provided by "OpenCV", but
CMake did not find one.
Could not find a package configuration file provided by "OpenCV" with any
of the following names:
OpenCVConfig.cmake
opencv-config.cmake
Add the installation prefix of "OpenCV" to CMAKE_PREFIX_PATH or set
"OpenCV_DIR" to a directory containing one of the above files. If "OpenCV"
provides a separate development package or SDK, be sure it has been
installed.
原因：新版MacOS(12.4)的brew安装位置改变，导致cmake的find_package(OpenCV REQUIRED)找不到OpenCV的库报错，需要手动设置包的位置。
解决办法：
1、在brew根目录下搜索 OpenCVConfig.cmake
find /opt/homebrew -name "OpenCVConfig.cmake"
2、找到文件后在顶层CMakeList.txt中添加：
set(OpenCV_DIR /opt/homebrew/Cellar/opencv/4.5.5_2/lib/cmake/opencv4/) find_package(OpenCV REQUIRED)
然后CMake会自动处理好头文件和运行库
