安装opencv +致命错误:找不到'opencv2/core.hpp‘文件

Question

我已经使用官方的安装过程安装了open cv：

https://docs.opencv.org/4.5.2/d0/db2/tutorial_macos_install.html

我在mac上做这件事，这个过程花了大约3个小时。安装后，安装目录如下所示：

apple@Apples-MacBook-Air.local:~/Learning/openCV/cpp$  pwd
/Users/apple/Learning/openCV/cpp

apple@Apples-MacBook-Air.local:~/Learning/openCV/cpp$  ls
3rdparty            CTestTestfile.cmake     bin             data                 
opencv_data_config.hpp      setup_vars.sh
CMakeCache.txt          Makefile            cmake_install.cmake     doc              
opencv_lapack.h         test-reports
CMakeDownloadLog.txt        OpenCVConfig-version.cmake  cmake_uninstall.cmake        
include             opencv_python_config.cmake  tmp
CMakeFiles          OpenCVConfig.cmake      configured          lib              
opencv_python_tests.cfg     unix-install
CMakeVars.txt           OpenCVModules.cmake     custom_hal.hpp          modules              
opencv_tests_config.hpp     version_string.tmp
CPackConfig.cmake       apps                cv_cpu_config.h         opencv               
python_loader
CPackSourceConfig.cmake     basicOp.cpp         cvconfig.h          opencv2         
samples

现在，我正在编写一个非常简单的程序来测试安装，看起来我需要做比到目前为止更多的事情。

我的简单程序：

#include<iostream>
#include<opencv2/core.hpp>

int main() {
  std::string imagePath = samples.findFile("starry_night.jpg");
  cv::Mat imageMatrix   = cv::imread(imagePath);
  if(imageMatrix.empty()) {
    std::cout << "Matrix is empty" << std::endl;
  }
}

编译这段代码会产生如下错误：

apple@Apples-MacBook-Air.local:~/Learning/openCV/programs$  g++ imageRead.cpp 
 imageRead.cpp:2:9: fatal error: 'opencv2/core.hpp' file not found
 #include<opencv2/core.hpp>

没问题，我大概可以理解这是因为开放的cv库没有链接。

因此，我使用以下命令进行编译：

apple@Apples-MacBook-Air.local:~/Learning/openCV/programs$  g++ imageRead.cpp -I/Users/apple/Learning/openCV/cpp/include -L/Users/apple/Learning/openCV/cpp/lib/

imageRead.cpp:2:9:致命错误:找不到'opencv2/core.hpp‘文件#include

它仍然会给我同样的错误。基本上，我把链接的路径交给了gcc考虑。

有什么建议吗？如果需要，我可以帮助提供更多的细节。

Answer 1

您是否尝试过#include<opencv2/core.hpp>而不是#include<opencv2/opencv.hpp>