opencv：win10下clion+opencv+mingw-64环境搭建

待我称王封你为后i 2023-01-03 12:54 186阅读 0赞

# 前提准备 #

*  win10-clion环境准备

# 下载opencv源码 #

1、下载最新版本Opencv4软件压缩包  
![在这里插入图片描述][20210108112946333.png]  
2、解压  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poaXpoZW5nZ3Vhbg_size_16_color_FFFFFF_t_70]  
得到：

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poaXpoZW5nZ3Vhbg_size_16_color_FFFFFF_t_70 1]

# 编译 #

## 生成Makefile ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poaXpoZW5nZ3Vhbg_size_16_color_FFFFFF_t_70 2]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poaXpoZW5nZ3Vhbg_size_16_color_FFFFFF_t_70 3]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poaXpoZW5nZ3Vhbg_size_16_color_FFFFFF_t_70 4]  
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在cmake里面找到OPENCV\_ENABLE\_ALLOCATOR\_STATS或者在search里面搜索，然后把后面的勾选去掉

点击`Configurate`  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poaXpoZW5nZ3Vhbg_size_16_color_FFFFFF_t_70 6]

错误1：

CMake Warning at cmake/OpenCVDownload.cmake:202 (message):
      FFMPEG: Download failed: 6;"Couldn't resolve host name"
    
      For details please refer to the download log file:
    
      E:/software/opencv/install/CMakeDownloadLog.txt
    
    Call Stack (most recent call first):
      3rdparty/ffmpeg/ffmpeg.cmake:20 (ocv_download)
      modules/videoio/cmake/detect_ffmpeg.cmake:14 (download_win_ffmpeg)
      modules/videoio/cmake/init.cmake:3 (include)
      modules/videoio/cmake/init.cmake:22 (add_backend)
      cmake/OpenCVModule.cmake:312 (include)
      cmake/OpenCVModule.cmake:375 (_add_modules_1)
      modules/CMakeLists.txt:7 (ocv_glob_modules)

[解决方法][Link 1]

*  进入 IPAddress.com 网站查询raw.githubusercontent.com真实地址。
 *  打开C:\\Windows\\System32\\drivers\\etc\\hosts,(需要使用管理员权限打开)  
    追加199.232.96.133 raw.githubusercontent.com如下：  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poaXpoZW5nZ3Vhbg_size_16_color_FFFFFF_t_70 7]

重新`Configure`， 配置成功。  
配置成功之后选择`Generate`:  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poaXpoZW5nZ3Vhbg_size_16_color_FFFFFF_t_70 8]  
![在这里插入图片描述][20210108133409314.png]  
表示生成了`Makefile`

## 编译 ##

生成好Makefile之后，我们开始编译Opencv源代码  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poaXpoZW5nZ3Vhbg_size_16_color_FFFFFF_t_70 9]  
即可打开cmd，然后执行命令`mingw32-make install`  
![在这里插入图片描述][20210108133743101.png]  
等待编译完成

## 配置环境变量 ##

编译成功之后我们只需要将`opencv\build\include`，`opencv\install\bin`, `opencv\install\lib`目录添加到环境变量中即可

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poaXpoZW5nZ3Vhbg_size_16_color_FFFFFF_t_70 10]

# clion中开始使用 #

![在这里插入图片描述][20210108152013406.png]

cmake_minimum_required(VERSION 3.15)
    project(untitled)
    
    
    set(CMAKE_CXX_STANDARD 14)
    
    # Find OpenCV, you may need to set OpenCV_DIR variable
    # to the absolute path to the directory containing OpenCVConfig.cmake file
    # via the command line or GUI
    # set(OpenCV_DIR "E:\\software\\opencv\\build\\x64\\vc15\\lib")
    find_package( OpenCV REQUIRED)
    
    
    # If the package has been found, several variables will
    # be set, you can find the full list with descriptions
    # in the OpenCVConfig.cmake file.
    # Print some message showing some of them
    message(STATUS "OpenCV library status:")
    message(STATUS "    version: ${OpenCV_VERSION}")
    message(STATUS "    libraries: ${OpenCV_LIBS}")
    message(STATUS "    include path: ${OpenCV_INCLUDE_DIRS}")
    
    # Add OpenCV headers location to your include paths
    include_directories( ${
        OpenCV_INCLUDE_DIRS} )
    
    
    # Declare the executable target built from your sources
    add_executable(${
        PROJECT_NAME} main.cpp )
    
    
    target_link_libraries( ${
        PROJECT_NAME}  ${
        OpenCV_LIBS})

#include <stdio.h>
    #include <opencv2/opencv.hpp>
    using namespace cv;
    int main(int argc, char** argv )
    {
        
        Mat image;
        image = imread( "C:\\Users\\oceanstar\\Pictures\\Camera Roll\\test.jpg", 1 );
        if ( !image.data )
        {
        
            printf("No image data \n");
            return -1;
        }
        namedWindow("Display Image", WINDOW_AUTOSIZE );
        imshow("Display Image", image);
        waitKey(0);
        return 0;
    }

编译运行：

> mkdir build
    > cd build
    > CMake -G "MinGW Makefiles" ../
    > mingw32-make

[20210108112946333.png]: /images/20221119/e1ec9b1027094437a58b056f063263d7.png
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[Link 1]: https://blog.csdn.net/zhizhengguan/article/details/107560858
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[20210108133409314.png]: /images/20221119/9c4eaf163c38415291ef2446890542d6.png
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[20210108152013406.png]: /images/20221119/1423bfd039b4447c9921fde9a151df4c.png