OpenCV的构建于Visual Studio的链接错误

Question

我跟了这tutorial这里正好提到

我现在尝试在Visual Studio中运行简单的OpenCV的代码，但我不断收到链接错误。 我想这OpenCV的tutorial in particular

这里是我不断收到错误：

1>Linking... 
1>LINK : warning LNK4067: ambiguous entry point; selected 'mainCRTStartup' 
1>OpenCV_Proj.obj : error LNK2019: unresolved external symbol "int __cdecl cv::waitKey(int)" (?waitKey@cv@@YAHH@Z) referenced in function _main 
1>OpenCV_Proj.obj : error LNK2019: unresolved external symbol "void __cdecl cv::imshow(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class cv::_InputArray const &)" (?imshow@cv@@YAXABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@ABV_InputArray@1@@Z) referenced in function _main 
1>OpenCV_Proj.obj : error LNK2019: unresolved external symbol "public: __thiscall cv::_InputArray::_InputArray(class cv::Mat const &)" (??0_InputArray@cv@@QAE@ABVMat@1@@Z) referenced in function _main 
1>OpenCV_Proj.obj : error LNK2019: unresolved external symbol "void __cdecl cv::namedWindow(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,int)" (?namedWindow@cv@@YAXABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@H@Z) referenced in function _main 
1>OpenCV_Proj.obj : error LNK2019: unresolved external symbol "class cv::Mat __cdecl cv::imread(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,int)" (?imread@cv@@YA?AVMat@1@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@H@Z) referenced in function _main 
1>OpenCV_Proj.obj : error LNK2019: unresolved external symbol "void __cdecl cv::fastFree(void *)" (?fastFree@cv@@YAXPAX@Z) referenced in function "public: __thiscall cv::Mat::~Mat(void)" (??1Mat@cv@@QAE@XZ) 
1>OpenCV_Proj.obj : error LNK2019: unresolved external symbol "public: void __thiscall cv::Mat::copySize(class cv::Mat const &)" (?copySize@Mat@cv@@QAEXABV12@@Z) referenced in function "public: class cv::Mat & __thiscall cv::Mat::operator=(class cv::Mat const &)" (??4Mat@cv@@QAEAAV01@ABV01@@Z) 
1>OpenCV_Proj.obj : error LNK2019: unresolved external symbol "public: void __thiscall cv::Mat::deallocate(void)" (?deallocate@Mat@cv@@QAEXXZ) referenced in function "public: void __thiscall cv::Mat::release(void)" (?release@Mat@cv@@QAEXXZ) 
1>C:\Users\Saher\Documents\Visual Studio 2008\Projects\OpenCV_Proj\Debug\OpenCV_Proj.exe : fatal error LNK1120: 8 unresolved externals`` 

对于下面的代码：

// OpenCV_Proj.cpp : Defines the entry point for the console application. 

//

#include "stdafx.h" 
#include <opencv2/core/core.hpp> 
#include <opencv2/highgui/highgui.hpp> 
#include <iostream> 

using namespace cv; 
using namespace std; 

int main(int argc, char** argv) 
{ 
    if(argc != 2) 
    { 
    cout <<" Usage: display_image ImageToLoadAndDisplay" << endl; 
    return -1; 
    } 

    Mat image; 
    image = imread(argv[1], CV_LOAD_IMAGE_COLOR); // Read the file 

    if(! image.data)        // Check for invalid input 
    { 
     cout << "Could not open or find the image" << std::endl ; 
     return -1; 
    } 

    namedWindow("Display window", CV_WINDOW_AUTOSIZE);// Create a window for display. 
    imshow("Display window", image);     // Show our image inside it. 

    waitKey(0);           // Wait for a keystroke in the window 
    return 0; 
} 

int _tmain(int argc, _TCHAR* argv[]) 
{ 
    return 0; 
} 

我一直试图让OpenCV在VS2008上工作一段时间并获得任何帮助这个问题将会受到重视。

注：在本教程下面的自述文件是什么我也跟着：

1) Add build\bin and one of build\{x86|x64}\{vc9\vc10\mingw}\bin to your system path (to use DLLs) 
    Add build\{x86|x64}\{vc9\vc10\mingw}\lib or 
     build\{x86|x64}\{vc9\vc10\mingw}\staticlib as library directories to your linker settings, 
    Add build\include and build\include\opencv as include directories to your compiler settings. 



Any help with getting this to work is really appreciated. 

Answer 1

这些符号OpenCV的库中定义的，所以您需要配置项目，并让连接器知道的OpenCV您正在使用的库。

在你应该添加最起码的：opencv_core230.lib和opencv_highgui230.lib（对于OpenCV的2.3.0）

有关如何做到这一点的VS2010，check this tutorial更多信息。

Answer 2

转到属性 - >连接器 - >输入和

添加cv210.lib; cxcore210.lib; highgui210.lib; cvaux210.lib;

您的问题将得到解决。

有一个快乐的编码....