未解決の外部が原因でOpenCVがコンパイルされない-LNK2019
私はOpenCVを初めて使用し、Visual Studios 2010Ultimateでセットアップしようとしています。私はドキュメントに正確に従い、それが言ったようにファイルをリンクしました。これが私が使用している追加のライブラリです：
opencv_core231d.lib
opencv_imgproc231d.lib
opencv_highgui231d.lib
opencv_ml231d.lib
opencv_video231d.lib
opencv_features2d231d.lib
opencv_calib3d231d.lib
opencv_objdetect231d.lib
opencv_contrib231d.lib
opencv_legacy231d.lib
opencv_flann231d.lib
そして、それらのリリースの対応物すべて。ただし、提供されたサンプルコードをデバッグおよびコンパイルしようとすると、次のエラーが発生します。 （プロジェクトが正しく機能するためには、プロジェクトをコンパイルして公開する必要があることをどこかで読みましたか？それも本当ですか？）
1>------ Build started: Project: openCVTest, Configuration: Debug Win32 ------
1>Build started 5/6/2012 10:39:03 AM.
1>InitializeBuildStatus:
1> Touching "Debug\openCVTest.unsuccessfulbuild".
1>ClCompile:
1> All outputs are up-to-date.
1>ManifestResourceCompile:
1> All outputs are up-to-date.
1>openCVTest.obj : error LNK2019: unresolved external symbol _cvWaitKey referenced in function _main
1>openCVTest.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?$allocator@D@2@@std@@ABV_InputArray@1@@Z) referenced in function _main
1>openCVTest.obj : error LNK2019: unresolved external symbol "public: __thiscall cv::_InputArray::_InputArray(class cv::Mat const &)" (??0_InputArray@cv@@QAE@ABVMat@1@@Z) referenced in function _main
1>openCVTest.obj : error LNK2019: unresolved external symbol _cvMoveWindow referenced in function _main
1>openCVTest.obj : error LNK2019: unresolved external symbol "void __cdecl cv::namedWindow(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,int)" (?namedWindow@cv@@YAXABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@H@Z) referenced in function _main
1>openCVTest.obj : error LNK2019: unresolved external symbol "public: virtual double __thiscall cv::VideoCapture::get(int)" (?get@VideoCapture@cv@@UAENH@Z) referenced in function _main
1>openCVTest.obj : error LNK2019: unresolved external symbol "public: virtual __thiscall cv::VideoCapture::~VideoCapture(void)" (??1VideoCapture@cv@@UAE@XZ) referenced in function _main
1>openCVTest.obj : error LNK2019: unresolved external symbol "public: virtual bool __thiscall cv::VideoCapture::isOpened(void)const " (?isOpened@VideoCapture@cv@@UBE_NXZ) referenced in function _main
1>openCVTest.obj : error LNK2019: unresolved external symbol "public: __thiscall cv::VideoCapture::VideoCapture(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (??0VideoCapture@cv@@QAE@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z) referenced in function _main
1>openCVTest.obj : error LNK2019: unresolved external symbol "void __cdecl cv::fastFree(void *)" (?fastFree@cv@@YAXPAX@Z) referenced in function "public: __thiscall cv::Mat::~Mat(void)" (??1Mat@cv@@QAE@XZ)
1>openCVTest.obj : error LNK2019: unresolved external symbol "public: void __thiscall cv::Mat::deallocate(void)" (?deallocate@Mat@cv@@QAEXXZ) referenced in function "public: void __thiscall cv::Mat::release(void)" (?release@Mat@cv@@QAEXXZ)
1>openCVTest.obj : error LNK2019: unresolved external symbol "class cv::Scalar_<double> __cdecl cv::sum(class cv::_InputArray const &)" (?sum@cv@@YA?AV?$Scalar_@N@1@ABV_InputArray@1@@Z) referenced in function "double __cdecl getPSNR(class cv::Mat const &,class cv::Mat const &)" (?getPSNR@@YANABVMat@cv@@0@Z)
1>openCVTest.obj : error LNK2019: unresolved external symbol "public: class cv::MatExpr __thiscall cv::Mat::mul(class cv::_InputArray const &,double)const " (?mul@Mat@cv@@QBE?AVMatExpr@2@ABV_InputArray@2@N@Z) referenced in function "double __cdecl getPSNR(class cv::Mat const &,class cv::Mat const &)" (?getPSNR@@YANABVMat@cv@@0@Z)
1>openCVTest.obj : error LNK2019: unresolved external symbol "public: void __thiscall cv::Mat::convertTo(class cv::_OutputArray const &,int,double,double)const " (?convertTo@Mat@cv@@QBEXABV_OutputArray@2@HNN@Z) referenced in function "double __cdecl getPSNR(class cv::Mat const &,class cv::Mat const &)" (?getPSNR@@YANABVMat@cv@@0@Z)
1>openCVTest.obj : error LNK2019: unresolved external symbol "void __cdecl cv::absdiff(class cv::_InputArray const &,class cv::_InputArray const &,class cv::_OutputArray const &)" (?absdiff@cv@@YAXABV_InputArray@1@0ABV_OutputArray@1@@Z) referenced in function "double __cdecl getPSNR(class cv::Mat const &,class cv::Mat const &)" (?getPSNR@@YANABVMat@cv@@0@Z)
1>openCVTest.obj : error LNK2019: unresolved external symbol "public: __thiscall cv::_OutputArray::_OutputArray(class cv::Mat &)" (??0_OutputArray@cv@@QAE@AAVMat@1@@Z) referenced in function "double __cdecl getPSNR(class cv::Mat const &,class cv::Mat const &)" (?getPSNR@@YANABVMat@cv@@0@Z)
1>openCVTest.obj : error LNK2019: unresolved external symbol "class cv::Scalar_<double> __cdecl cv::mean(class cv::_InputArray const &,class cv::_InputArray const &)" (?mean@cv@@YA?AV?$Scalar_@N@1@ABV_InputArray@1@0@Z) referenced in function "class cv::Scalar_<double> __cdecl getMSSIM(class cv::Mat const &,class cv::Mat const &)" (?getMSSIM@@YA?AV?$Scalar_@N@cv@@ABVMat@2@0@Z)
1>openCVTest.obj : error LNK2019: unresolved external symbol "class cv::_OutputArray const & __cdecl cv::noArray(void)" (?noArray@cv@@YAABV_OutputArray@1@XZ) referenced in function "class cv::Scalar_<double> __cdecl getMSSIM(class cv::Mat const &,class cv::Mat const &)" (?getMSSIM@@YA?AV?$Scalar_@N@cv@@ABVMat@2@0@Z)
1>openCVTest.obj : error LNK2019: unresolved external symbol "void __cdecl cv::divide(class cv::_InputArray const &,class cv::_InputArray const &,class cv::_OutputArray const &,double,int)" (?divide@cv@@YAXABV_InputArray@1@0ABV_OutputArray@1@NH@Z) referenced in function "class cv::Scalar_<double> __cdecl getMSSIM(class cv::Mat const &,class cv::Mat const &)" (?getMSSIM@@YA?AV?$Scalar_@N@cv@@ABVMat@2@0@Z)
1>openCVTest.obj : error LNK2019: unresolved external symbol "class cv::MatExpr __cdecl cv::operator+(class cv::Mat const &,class cv::Mat const &)" (??Hcv@@YA?AVMatExpr@0@ABVMat@0@0@Z) referenced in function "class cv::Scalar_<double> __cdecl getMSSIM(class cv::Mat const &,class cv::Mat const &)" (?getMSSIM@@YA?AV?$Scalar_@N@cv@@ABVMat@2@0@Z)
1>openCVTest.obj : error LNK2019: unresolved external symbol "class cv::MatExpr __cdecl cv::operator+(class cv::MatExpr const &,class cv::Scalar_<double> const &)" (??Hcv@@YA?AVMatExpr@0@ABV10@ABV?$Scalar_@N@0@@Z) referenced in function "class cv::Scalar_<double> __cdecl getMSSIM(class cv::Mat const &,class cv::Mat const &)" (?getMSSIM@@YA?AV?$Scalar_@N@cv@@ABVMat@2@0@Z)
1>openCVTest.obj : error LNK2019: unresolved external symbol "class cv::MatExpr __cdecl cv::operator*(double,class cv::Mat const &)" (??Dcv@@YA?AVMatExpr@0@NABVMat@0@@Z) referenced in function "class cv::Scalar_<double> __cdecl getMSSIM(class cv::Mat const &,class cv::Mat const &)" (?getMSSIM@@YA?AV?$Scalar_@N@cv@@ABVMat@2@0@Z)
1>openCVTest.obj : error LNK2019: unresolved external symbol "void __cdecl cv::GaussianBlur(class cv::_InputArray const &,class cv::_OutputArray const &,class cv::Size_<int>,double,double,int)" (?GaussianBlur@cv@@YAXABV_InputArray@1@ABV_OutputArray@1@V?$Size_@H@1@NNH@Z) referenced in function "class cv::Scalar_<double> __cdecl getMSSIM(class cv::Mat const &,class cv::Mat const &)" (?getMSSIM@@YA?AV?$Scalar_@N@cv@@ABVMat@2@0@Z)
1>openCVTest.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: __thiscall cv::Mat::Mat(class cv::Mat const &)" (??0Mat@cv@@QAE@ABV01@@Z)
1>openCVTest.obj : error LNK2019: unresolved external symbol "void __cdecl cv::subtract(class cv::_InputArray const &,class cv::_InputArray const &,class cv::_OutputArray const &,class cv::_InputArray const &,int)" (?subtract@cv@@YAXABV_InputArray@1@0ABV_OutputArray@1@0H@Z) referenced in function "class cv::Mat & __cdecl cv::operator-=(class cv::Mat const &,class cv::Mat const &)" (??Zcv@@YAAAVMat@0@ABV10@0@Z)
1>C:\Users\Logan\documents\visual studio 2010\Projects\openCVTest\Debug\openCVTest.exe : fatal error LNK1120: 25 unresolved externals
1>
1>Build FAILED.
1>
1>Time Elapsed 00:00:00.40
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
私はすべてのディレクトリを調べて、ライブラリが実際にOpenCVファイルに存在し、ダウンロードが破損していないことなどを確認しました。どんな助けでもいただければ幸いです！
-Logantf17
同じ問題が発生し、32ビットプラットフォームをターゲットにしていることがわかりました。答えは、プロジェクトをx64をターゲットに変更することでした。手順は次の場所にあります： http://msdn.Microsoft.com/en-us/library/vstudio/ms185328.aspx 。
また、chaiyによる上記のリファレンスが非常に役立つこともわかりました。ここに再びあります： http://docs.opencv.org/trunk/doc/tutorials/introduction/windows_visual_studio_Opencv/windows_visual_studio_Opencv.html#windows-visual-studio-how-to