opencv安裝配置教程

1. 安裝visual studio 2019

https://visualstudio.microsoft.com/zh-hans/vs/ 安裝企業版，不要安裝社區版(功能不全)

blob:https://visualstudio.microsoft.com/fa0456c4-9a1c-4e6d-8103-11159db7a838

企業版：BF8Y8-GN2QH-T84XB-QVY3B-RC4DF

專業版：NYWVH-HT4XC-R2WYW-9Y3CM-X4V3Y

2. 安裝git for windows

https://github.com/git-for-windows/git/releases/download/v2.32.0.windows.2/Git-2.32.0.2-64-bit.exe

3. 下載opencv代碼或者安裝包

鏈接：https://pan.xunlei.com/s/VMfT4RZJ2O0R6FAgABo8bJZXA1
提取碼：p5ht
復制這段內容后打開手機迅雷App，查看更方便

4. cmake編譯opencv

https://docs.opencv.org/master/d3/d52/tutorial_windows_install.html#tutorial_windows_install_path

Installation by Using git-bash (version>=2.14.1) and cmake (version >=3.9.1)

1. You must download cmake (version >=3.9.1) and install it. You must add cmake to PATH variable during installation
2. You must install git-bash (version>=2.14.1). Don't add git to PATH variable during installation
3. Run git-bash. You observe a command line window. Suppose you want to build opencv and opencv_contrib in c:/lib
4. In git command line enter following command (if folder does not exist) :

   mkdir /c/lib
   cd /c/lib

5. save this script with name installOCV.sh in c:/lib

   #!/bin/bash -e
   myRepo=$(pwd)
   CMAKE_GENERATOR_OPTIONS=-G"Visual Studio 16 2019"
   #CMAKE_GENERATOR_OPTIONS=-G"Visual Studio 15 2017 Win64"
   #CMAKE_GENERATOR_OPTIONS=(-G"Visual Studio 16 2019" -A x64)  # CMake 3.14+ is required
   if [  ! -d "$myRepo/opencv"  ]; then
       echo "cloning opencv"
       git clone https://github.com/opencv/opencv.git
   else
       cd opencv
       git pull --rebase
       cd ..
   fi
   if [  ! -d "$myRepo/opencv_contrib"  ]; then
       echo "cloning opencv_contrib"
       git clone https://github.com/opencv/opencv_contrib.git
   else
       cd opencv_contrib
       git pull --rebase
       cd ..
   fi
   RepoSource=opencv
   mkdir -p build_opencv
   pushd build_opencv
   CMAKE_OPTIONS=(-DBUILD_PERF_TESTS:BOOL=OFF -DBUILD_TESTS:BOOL=OFF -DBUILD_DOCS:BOOL=OFF  -DWITH_CUDA:BOOL=OFF -DBUILD_EXAMPLES:BOOL=OFF -DINSTALL_CREATE_DISTRIB=ON)
   set -x
   cmake "${CMAKE_GENERATOR_OPTIONS[@]}" "${CMAKE_OPTIONS[@]}" -DOPENCV_EXTRA_MODULES_PATH="$myRepo"/opencv_contrib/modules -DCMAKE_INSTALL_PREFIX="$myRepo/install/$RepoSource" "$myRepo/$RepoSource"
   echo "************************* $Source_DIR -->debug"
   cmake --build .  --config debug
   echo "************************* $Source_DIR -->release"
   cmake --build .  --config release
   cmake --build .  --target install --config release
   cmake --build .  --target install --config debug
   popd

   In this script I suppose you use VS 2015 in 64 bits

   CMAKE_GENERATOR_OPTIONS=-G"Visual Studio 14 2015 Win64"

   and opencv will be installed in c:/lib/install/opencv

   -DCMAKE_INSTALL_PREFIX="$myRepo/install/$RepoSource"

   with no Perf tests, no tests, no doc, no CUDA and no example

   CMAKE_OPTIONS=(-DBUILD_PERF_TESTS:BOOL=OFF -DBUILD_TESTS:BOOL=OFF -DBUILD_DOCS:BOOL=OFF -DBUILD_EXAMPLES:BOOL=OFF)

6. In git command line enter following command :

   ./installOCV.sh

7. Drink a coffee or two... opencv is ready : That's all!
8. Next time you run this script, opencv and opencv_contrib will be updated and rebuild

----------- 參考結束 ---------------

1 解壓好的檔案如下:

2 配置path環境變數

64位作業系統對應x64, vs2019 對應版本vc15

3. VS2019中的配置

下面是Debug x64的配置，release x86/x64版需要再配置include， lib目錄, 還有link位置

（1）右鍵專案屬性

（2）VC++目錄，平臺選擇X64，右側包含目錄和庫目錄

• include頭檔案目錄

包含目錄和庫目錄都是你之前OpenCV的安裝路徑，將下面兩個路徑添加進去

D:\opencv\build\include\opencv2 我試過了這個可以不加
D:\opencv\build\include

• 庫目錄

將下面的路徑添加進去

D:\opencv\build\x64\vc15\lib

（3）修改附加依賴項

將下面的.lib手動打上去，在D:\你的OpenCV安裝目錄\build\x64\vc15\lib中找

Linker -> Input -> Aditional Dependencies

在安裝路徑下找到 D:\opencv\build\x64\vc15\lib

所以這么配置, 453這個版本根據自己下載的版本實際情況填

額外的依賴.lib檔案 后面的版本號在opencv bin路徑下找 opencv_world453d.lib

4. 測驗

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

int main(int argc, char** argv)
{
/*
    if (argc != 2)
    {
        cout << " Usage: " << argv[0] << " ImageToLoadAndDisplay" << endl;
        return -1;
    }
*/
    cv::Mat image;
    // image = imread(argv[1], IMREAD_COLOR); // Read the file
    image = cv::imread("C:/Users/mingz/Pictures/Saved Pictures/cat.png", cv::IMREAD_COLOR);
    if (image.empty()) // Check for invalid input
    {
        std::cout << "Could not open or find the image" << std::endl;
        return -1;
    }
    cv::namedWindow("Display window", cv::WINDOW_AUTOSIZE); // Create a window for display.
    cv::imshow("Display window", image); // Show our image inside it.
    int k = cv::waitKey(0); // Wait for a keystroke in the window

    // save as ...
    if (k == 's') {
        cv::imwrite("cat2.png", image);
    }
    return 0;
}

Solution Explorer中右鍵 專案名稱

Rebuild

接下來看opencv的教程

https://docs.opencv.org/master/d9/df8/tutorial_root.html

在專案根目錄下打開 [專案名]. vcxprj檔案，看到剛才在選單欄配置的編譯依賴規則在xml組態檔里，作用類似Linux環境的Makefile，

 <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
    <LinkIncremental>true</LinkIncremental>
    <ExecutablePath>
    </ExecutablePath>
    <IncludePath>D:\opencv\build\include;$(IncludePath)</IncludePath>
    <ReferencePath>$(ReferencePath)</ReferencePath>
    <LibraryPath>D:\opencv\build\x64\vc15\lib;$(LibraryPath)</LibraryPath>
  </PropertyGroup>
  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
    <LinkIncremental>false</LinkIncremental>
  </PropertyGroup>
  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
    <LinkIncremental>true</LinkIncremental>
    <IncludePath>D:\opencv\build\include\opencv2;D:\opencv\build\include;$(IncludePath)</IncludePath>
    <LibraryPath>D:\opencv\build\x64\vc15\lib;$(LibraryPath)</LibraryPath>
  </PropertyGroup>

<!-- ... -->
  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
    <ClCompile>
      <WarningLevel>Level3</WarningLevel>
      <SDLCheck>true</SDLCheck>
      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
      <ConformanceMode>true</ConformanceMode>
    </ClCompile>
    <Link>
      <SubSystem>Console</SubSystem>
      <GenerateDebugInformation>true</GenerateDebugInformation>
      <AdditionalDependencies>opencv_world453d.lib;%(AdditionalDependencies)</AdditionalDependencies>
    </Link>
  </ItemDefinitionGroup>

微軟的軟體中xml檔案都不用手動改，專案中的xml檔案都有圖形界面配置，用工具軟體生成xml組態檔，

Clion IDE配置比Visual Studio簡單，但是除錯工具沒有Visual Studio強