Question

我在64位系统上使用Visual Studio 2017。 OpenCV3安装在C：\ opencv中。我想使用cl.exe编译一些小程序，而不必创建一个新的Visual Studio项目。我一直试图让这个程序编译：

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

int main() {
    cv::Mat img = cv::imread("~/Documents/testing_images/test1.jpg");
    cv::imshow("image", img);
    cv::waitKey();
    cv::destroyAllWindows();
}

现在，这就是我正在做的事情，但它不起作用：

cl /IC:\opencv\build\include test.cpp

这是命令的输出：

Microsoft (R) C/C++ Optimizing Compiler Version 19.13.26131.1 for x86
Copyright (C) Microsoft Corporation.  All rights reserved.

test.cpp
C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.13.26128\include\xlocale(313): warning C4530: C++ exception handler used, but unwind semantics are not enabled. Specify /EHsc
Microsoft (R) Incremental Linker Version 14.13.26131.1
Copyright (C) Microsoft Corporation.  All rights reserved.

/out:test.exe
test.obj
test.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)
test.obj : error LNK2019: unresolved external symbol "private: char * __thiscall cv::String::allocate(unsigned int)" (?allocate@String@cv@@AAEPADI@Z) referenced in function "public: __thiscall cv::String::String(char const *)" (??0String@cv@@QAE@PBD@Z)
test.obj : error LNK2019: unresolved external symbol "private: void __thiscall cv::String::deallocate(void)" (?deallocate@String@cv@@AAEXXZ) referenced in function "public: __thiscall cv::String::~String(void)" (??1String@cv@@QAE@XZ)
test.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)
test.obj : error LNK2019: unresolved external symbol "class cv::Mat __cdecl cv::imread(class cv::String const &,int)" (?imread@cv@@YA?AVMat@1@ABVString@1@H@Z) referenced in function _main
test.obj : error LNK2019: unresolved external symbol "void __cdecl cv::destroyAllWindows(void)" (?destroyAllWindows@cv@@YAXXZ) referenced in function _main
test.obj : error LNK2019: unresolved external symbol "int __cdecl cv::waitKey(int)" (?waitKey@cv@@YAHH@Z) referenced in function _main
test.obj : error LNK2019: unresolved external symbol "void __cdecl cv::imshow(class cv::String const &,class cv::_InputArray const &)" (?imshow@cv@@YAXABVString@1@ABV_InputArray@1@@Z) referenced in function _main
test.exe : fatal error LNK1120: 8 unresolved externals

我知道我必须链接OpenCV库，但我不确定如何链接它。 C：\ opencv \ build \ x86 \ vc15 \ bin当前位于我的Path环境变量中。

如何用cl.exe编译OpenCV程序？

0 个答案: