我需要你的帮助。 我正在尝试将外部库与QT Creator链接 我收到三个LNK2019错误
mainwindow.obj:-1: error: LNK2019: unresolved external symbol ""void __cdecl cv::projectPoints(class cv::_InputArray const &,class cv::_InputArray const &,class cv::_InputArray const &,class cv::_InputArray const &,class cv::_InputArray const &,class cv::_OutputArray const &,class cv::_OutputArray const &,double)" (?projectPoints@cv@@YAXABV_InputArray@1@0000ABV_OutputArray@1@1N@Z)" in Funktion ""private: int __thiscall MainWindow::on_ButtonVideo_clicked(void)" (?on_ButtonVideo_clicked@MainWindow@@AAEHXZ)".
mainwindow.obj:-1: error: LNK2019: unresolved external symbol ""bool __cdecl cv::solvePnP(class cv::_InputArray const &,class cv::_InputArray const &,class cv::_InputArray const &,class cv::_InputArray const &,class cv::_OutputArray const &,class cv::_OutputArray const &,bool,int)" (?solvePnP@cv@@YA_NABV_InputArray@1@000ABV_OutputArray@1@1_NH@Z)" in Funktion ""private: int __thiscall MainWindow::on_ButtonVideo_clicked(void)" (?on_ButtonVideo_clicked@MainWindow@@AAEHXZ)".
mainwindow.obj:-1: error: LNK2019: unresolved external symbol ""bool __cdecl cv::findChessboardCorners(class cv::_InputArray const &,class cv::Size_<int>,class cv::_OutputArray const &,int)" (?findChessboardCorners@cv@@YA_NABV_InputArray@1@V?$Size_@H@1@ABV_OutputArray@1@H@Z)" in Funktion ""private: int __thiscall MainWindow::on_ButtonVideo_clicked(void)" (?on_ButtonVideo_clicked@MainWindow@@AAEHXZ)".
我的.pro文件
QT += core gui widgets
TARGET = beispiel
TEMPLATE = app
SOURCES += main.cpp\
mainwindow.cpp
HEADERS += mainwindow.h
FORMS += mainwindow.ui
INCLUDEPATH += C:/opencv/build/include/
LIBS += -LC:/opencv/build/x64/vc12/lib \
-lopencv_calib3d249 \
-lopencv_core249 \
-lopencv_highgui249 \
-lopencv_imgproc249
我安装了opencv3.0，希望能解决这个问题，但事实并非如此。
任何帮助将不胜感激。
现在我失去了一切。
我清理并重新构建了项目。 现在我得到16个链接错误。
mainwindow.obj:-1: error: LNK2019: Verweis auf nicht aufgelöstes externes Symbol ""private: char * __thiscall cv::String::allocate(unsigned int)" (?allocate@String@cv@@AAEPADI@Z)" in Funktion ""public: __thiscall cv::Mat::Mat(int,int,int,void *,unsigned int)" (??0Mat@cv@@QAE@HHHPAXI@Z)".
mainwindow.obj:-1: error: LNK2019: Verweis auf nicht aufgelöstes externes Symbol ""private: void __thiscall cv::String::deallocate(void)" (?deallocate@String@cv@@AAEXXZ)" in Funktion ""public: __thiscall cv::Mat::Mat(int,int,int,void *,unsigned int)" (??0Mat@cv@@QAE@HHHPAXI@Z)".
mainwindow.obj:-1: error: LNK2019: Verweis auf nicht aufgelöstes externes Symbol ""void __cdecl cv::error(int,class cv::String const &,char const *,char const *,int)" (?error@cv@@YAXHABVString@1@PBD1H@Z)" in Funktion ""public: __thiscall cv::Mat::Mat(int,int,int,void *,unsigned int)" (??0Mat@cv@@QAE@HHHPAXI@Z)".
mainwindow.obj:-1: error: LNK2019: Verweis auf nicht aufgelöstes externes Symbol ""class cv::_InputOutputArray const & __cdecl cv::noArray(void)" (?noArray@cv@@YAABV_InputOutputArray@1@XZ)" in Funktion ""private: int __thiscall MainWindow::on_ButtonVideo_clicked(void)" (?on_ButtonVideo_clicked@MainWindow@@AAEHXZ)".
mainwindow.obj:-1: error: LNK2019: Verweis auf nicht aufgelöstes externes Symbol ""public: virtual bool __thiscall cv::FileStorage::open(class cv::String const &,int,class cv::String const &)" (?open@FileStorage@cv@@UAE_NABVString@2@H0@Z)" in Funktion ""private: int __thiscall MainWindow::on_ButtonVideo_clicked(void)" (?on_ButtonVideo_clicked@MainWindow@@AAEHXZ)".
mainwindow.obj:-1: error: LNK2019: Verweis auf nicht aufgelöstes externes Symbol ""void __cdecl cv::findContours(class cv::_InputOutputArray const &,class cv::_OutputArray const &,int,int,class cv::Point_<int>)" (?findContours@cv@@YAXABV_InputOutputArray@1@ABV_OutputArray@1@HHV?$Point_@H@1@@Z)" in Funktion ""private: int __thiscall MainWindow::on_ButtonVideo_clicked(void)" (?on_ButtonVideo_clicked@MainWindow@@AAEHXZ)".
mainwindow.obj:-1: error: LNK2019: Verweis auf nicht aufgelöstes externes Symbol ""void __cdecl cv::line(class cv::_InputOutputArray const &,class cv::Point_<int>,class cv::Point_<int>,class cv::Scalar_<double> const &,int,int,int)" (?line@cv@@YAXABV_InputOutputArray@1@V?$Point_@H@1@1ABV?$Scalar_@N@1@HHH@Z)" in Funktion ""private: int __thiscall MainWindow::on_ButtonVideo_clicked(void)" (?on_ButtonVideo_clicked@MainWindow@@AAEHXZ)".
mainwindow.obj:-1: error: LNK2019: Verweis auf nicht aufgelöstes externes Symbol ""void __cdecl cv::circle(class cv::_InputOutputArray const &,class cv::Point_<int>,int,class cv::Scalar_<double> const &,int,int,int)" (?circle@cv@@YAXABV_InputOutputArray@1@V?$Point_@H@1@HABV?$Scalar_@N@1@HHH@Z)" in Funktion ""private: int __thiscall MainWindow::on_ButtonVideo_clicked(void)" (?on_ButtonVideo_clicked@MainWindow@@AAEHXZ)".
mainwindow.obj:-1: error: LNK2019: Verweis auf nicht aufgelöstes externes Symbol ""void __cdecl cv::ellipse(class cv::_InputOutputArray const &,class cv::Point_<int>,class cv::Size_<int>,double,double,double,class cv::Scalar_<double> const &,int,int,int)" (?ellipse@cv@@YAXABV_InputOutputArray@1@V?$Point_@H@1@V?$Size_@H@1@NNNABV?$Scalar_@N@1@HHH@Z)" in Funktion ""private: int __thiscall MainWindow::on_ButtonVideo_clicked(void)" (?on_ButtonVideo_clicked@MainWindow@@AAEHXZ)".
mainwindow.obj:-1: error: LNK2019: Verweis auf nicht aufgelöstes externes Symbol ""void __cdecl cv::ellipse(class cv::_InputOutputArray const &,class cv::RotatedRect const &,class cv::Scalar_<double> const &,int,int)" (?ellipse@cv@@YAXABV_InputOutputArray@1@ABVRotatedRect@1@ABV?$Scalar_@N@1@HH@Z)" in Funktion ""private: int __thiscall MainWindow::on_ButtonVideo_clicked(void)" (?on_ButtonVideo_clicked@MainWindow@@AAEHXZ)".
mainwindow.obj:-1: error: LNK2019: Verweis auf nicht aufgelöstes externes Symbol ""void __cdecl cv::projectPoints(class cv::_InputArray const &,class cv::_InputArray const &,class cv::_InputArray const &,class cv::_InputArray const &,class cv::_InputArray const &,class cv::_OutputArray const &,class cv::_OutputArray const &,double)" (?projectPoints@cv@@YAXABV_InputArray@1@0000ABV_OutputArray@1@1N@Z)" in Funktion ""private: int __thiscall MainWindow::on_ButtonVideo_clicked(void)" (?on_ButtonVideo_clicked@MainWindow@@AAEHXZ)".
mainwindow.obj:-1: error: LNK2019: Verweis auf nicht aufgelöstes externes Symbol ""bool __cdecl cv::solvePnP(class cv::_InputArray const &,class cv::_InputArray const &,class cv::_InputArray const &,class cv::_InputArray const &,class cv::_OutputArray const &,class cv::_OutputArray const &,bool,int)" (?solvePnP@cv@@YA_NABV_InputArray@1@000ABV_OutputArray@1@1_NH@Z)" in Funktion ""private: int __thiscall MainWindow::on_ButtonVideo_clicked(void)" (?on_ButtonVideo_clicked@MainWindow@@AAEHXZ)".
mainwindow.obj:-1: error: LNK2019: Verweis auf nicht aufgelöstes externes Symbol ""bool __cdecl cv::findChessboardCorners(class cv::_InputArray const &,class cv::Size_<int>,class cv::_OutputArray const &,int)" (?findChessboardCorners@cv@@YA_NABV_InputArray@1@V?$Size_@H@1@ABV_OutputArray@1@H@Z)" in Funktion ""private: int __thiscall MainWindow::on_ButtonVideo_clicked(void)" (?on_ButtonVideo_clicked@MainWindow@@AAEHXZ)".
mainwindow.obj:-1: error: LNK2019: Verweis auf nicht aufgelöstes externes Symbol ""public: virtual bool __thiscall cv::VideoCapture::read(class cv::_OutputArray const &)" (?read@VideoCapture@cv@@UAE_NABV_OutputArray@2@@Z)" in Funktion ""private: int __thiscall MainWindow::on_ButtonVideo_clicked(void)" (?on_ButtonVideo_clicked@MainWindow@@AAEHXZ)".
mainwindow.obj:-1: error: LNK2019: Verweis auf nicht aufgelöstes externes Symbol ""void __cdecl cv::namedWindow(class cv::String const &,int)" (?namedWindow@cv@@YAXABVString@1@H@Z)" in Funktion ""private: int __thiscall MainWindow::on_ButtonVideo_clicked(void)" (?on_ButtonVideo_clicked@MainWindow@@AAEHXZ)".
mainwindow.obj:-1: error: LNK2019: Verweis auf nicht aufgelöstes externes Symbol ""void __cdecl cv::imshow(class cv::String const &,class cv::_InputArray const &)" (?imshow@cv@@YAXABVString@1@ABV_InputArray@1@@Z)" in Funktion ""private: int __thiscall MainWindow::on_ButtonVideo_clicked(void)" (?on_ButtonVideo_clicked@MainWindow@@AAEHXZ)".
这是我的整个代码：
#include "mainwindow.h"
using namespace cv;
using namespace std;
Point prevCenter_bl;
Point prevCenter_gr;
Point prevCenter_rd;
int boardHeight = 6;
int boardWidth = 9;
Size cbSize = Size(boardHeight,boardWidth);
string filename = "out_camera_data.yml";
//default image size
const int FRAME_WIDTH = 640;
const int FRAME_HEIGHT = 480;
//function prototypes
//void generate_boardPoints();
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
connect(ui->ButtonVideo, SIGNAL(clicked()), this, SLOT(on_ButtonVideo_clicked()) );
connect(ui->ButtonVideoRelease, SIGNAL(clicked()), this, SLOT(on_ButtonVideoRelease_clicked()) );
// connect(ui->videoFrame, SIGNAL(clicked()), this, SLOT(on_ButtonVideoRelease_clicked()) );
}
MainWindow::~MainWindow()
{
delete ui;
}
int MainWindow::on_ButtonVideo_clicked()
{
///init_chess_board
//set up a FileStorage object to read camera params from file
FileStorage fs;
fs.open(filename, FileStorage::READ);
// read camera matrix and distortion coefficients from file
Mat intrinsics, distortion;
fs["Camera_Matrix"] >> intrinsics;
fs["Distortion_Coefficients"] >> distortion;
// close the input file
fs.release();
//set up matrices for storage
Mat webcamImage, gray, one;
Mat rvec = Mat(Size(3,1), CV_64F);
Mat tvec = Mat(Size(3,1), CV_64F);
//setup vectors to hold the chessboard corners in the chessboard coordinate system and in the image
vector<Point2d> imagePoints, imageFramePoints, imageOrigin;
vector<Point3d> boardPoints, framePoints;
//generate vectors for the points on the chessboard
for (int i=0; i<boardWidth; i++)
{
for (int j=0; j<boardHeight; j++)
{
boardPoints.push_back( Point3d( double(i), double(j), 0.0) );
}
}
//generate points in the reference frame
framePoints.push_back( Point3d( 0.0, 0.0, 0.0 ) );
framePoints.push_back( Point3d( 5.0, 0.0, 0.0 ) );
framePoints.push_back( Point3d( 0.0, 5.0, 0.0 ) );
framePoints.push_back( Point3d( 0.0, 0.0, 5.0 ) );
///init_ellipse_tracking
// namedWindow("Control"); //create a window called "Control"
int iLowH_bl = 104; //0
int iHighH_bl = 179; //179
int iLowS_bl = 86; //0
int iHighS_bl = 255; //255
int iLowV_bl = 0; //0
int iHighV_bl = 255; //255
int sliderPos_bl = 70; //70
int iLowH_gr = 87; //0
int iHighH_gr = 102; //179
int iLowS_gr = 108; //0
int iHighS_gr = 238; //255
int iLowV_gr = 78; //0
int iHighV_gr = 175; //255
int sliderPos_gr = 70; //70
int iLowH_rd = 0; //0
int iHighH_rd = 34; //179
int iLowS_rd = 68; //0
int iHighS_rd = 255; //255
int iLowV_rd = 58; //0
int iHighV_rd = 117; //255
int sliderPos_rd = 70; //70
//Create trackbars in "Control" window
// cvCreateTrackbar("LowH", "Control", &iLowH, 179); //Hue (0 - 179)
// cvCreateTrackbar("HighH", "Control", &iHighH, 179);
// cvCreateTrackbar("LowS", "Control", &iLowS, 255); //Saturation (0 - 255)
// cvCreateTrackbar("HighS", "Control", &iHighS, 255);
// cvCreateTrackbar("LowV", "Control", &iLowV, 255); //Value (0 - 255)
// cvCreateTrackbar("HighV", "Control", &iHighV, 255);
//cvCreateTrackbar("Ellipse", "Control", &sliderPos, 255);
// cvResizeWindow("Control", 220, 50);
Mat imgOriginal;
VideoCapture cap(0); //capture the video from web cam
capture.set(CV_CAP_PROP_FRAME_WIDTH,FRAME_WIDTH);
capture.set(CV_CAP_PROP_FRAME_HEIGHT,FRAME_HEIGHT);
if ( !cap.isOpened() ) // if not success, exit program
{
cout << "Cannot open the web cam" << endl;
return -1;
}
while (true)
{
/// chess_board
//store image to matrix
capture.read(webcamImage);
//make a gray copy of the webcam image
cvtColor(webcamImage,gray,COLOR_BGR2GRAY);
//detect chessboard corners
bool found = findChessboardCorners(gray, cbSize, imagePoints, CALIB_CB_FAST_CHECK);
//drawChessboardCorners(webcamImage, cbSize, Mat(imagePoints), found);
//find camera orientation if the chessboard corners have been found
if ( found )
{
//find the camera extrinsic parameters
solvePnP( Mat(boardPoints), Mat(imagePoints), intrinsics, distortion, rvec, tvec, false );
//project the reference frame onto the image
projectPoints(framePoints, rvec, tvec, intrinsics, distortion, imageFramePoints );
//DRAWING
//draw the reference frame on the image
circle(webcamImage, (Point) imagePoints[0], 4 ,CV_RGB(255,0,0) );
Point one, two, three;
one.x=10; one.y=10;
two.x = 60; two.y = 10;
three.x = 10; three.y = 60;
line(webcamImage, one, two, CV_RGB(255,0,0) );
line(webcamImage, one, three, CV_RGB(0,255,0) );
line(webcamImage, imageFramePoints[0], imageFramePoints[1], CV_RGB(255,0,0), 2 );
line(webcamImage, imageFramePoints[0], imageFramePoints[2], CV_RGB(0,255,0), 2 );
line(webcamImage, imageFramePoints[0], imageFramePoints[3], CV_RGB(0,0,255), 2 );
//show the pose estimation data
cout << fixed << setprecision(2) << "rvec = ["
<< rvec.at<double>(0,0) << ", "
<< rvec.at<double>(1,0) << ", "
<< rvec.at<double>(2,0) << "] \t" << "tvec = ["
<< tvec.at<double>(0,0) << ", "
<< tvec.at<double>(1,0) << ", "
<< tvec.at<double>(2,0) << "]" << endl;
}
//show the image on screen
namedWindow("OpenCV Webcam", 0);
imshow("OpenCV Webcam", webcamImage);
//show the gray image
//namedWindow("Gray Image", CV_WINDOW_AUTOSIZE);
//imshow("Gray Image", gray);
/// ellipse_tracking
bool bSuccess = cap.read(imgOriginal); // read a new frame from video
if (!bSuccess) //if not success, break loop
{
cout << "Cannot read a frame from video stream" << endl;
break;
}
Mat imgHSV_bl;
Mat imgHSV_gr;
Mat imgHSV_rd;
cvtColor(imgOriginal, imgHSV_bl, COLOR_BGR2HSV); //Convert the captured frame from BGR to HSV
cvtColor(imgOriginal, imgHSV_gr, COLOR_BGR2HSV); //Convert the captured frame from BGR to HSV
cvtColor(imgOriginal, imgHSV_rd, COLOR_BGR2HSV); //Convert the captured frame from BGR to HSV
Mat imgThresholded_bl;
Mat imgThresholded_gr;
Mat imgThresholded_rd;
inRange(imgHSV_bl, Scalar(iLowH_bl, iLowS_bl, iLowV_bl), Scalar(iHighH_bl, iHighS_bl, iHighV_bl), imgThresholded_bl); //Threshold the image
inRange(imgHSV_gr, Scalar(iLowH_gr, iLowS_gr, iLowV_gr), Scalar(iHighH_gr, iHighS_gr, iHighV_gr), imgThresholded_gr); //Threshold the image
inRange(imgHSV_rd, Scalar(iLowH_rd, iLowS_rd, iLowV_rd), Scalar(iHighH_rd, iHighS_rd, iHighV_rd), imgThresholded_rd); //Threshold the image
//morphological opening (remove small objects from the foreground)
erode(imgThresholded_bl, imgThresholded_bl, getStructuringElement(MORPH_ELLIPSE, Size(5, 5)) );
erode(imgThresholded_gr, imgThresholded_gr, getStructuringElement(MORPH_ELLIPSE, Size(5, 5)) );
erode(imgThresholded_rd, imgThresholded_rd, getStructuringElement(MORPH_ELLIPSE, Size(5, 5)) );
dilate( imgThresholded_bl, imgThresholded_bl, getStructuringElement(MORPH_ELLIPSE, Size(5, 5)) );
dilate( imgThresholded_gr, imgThresholded_gr, getStructuringElement(MORPH_ELLIPSE, Size(5, 5)) );
dilate( imgThresholded_rd, imgThresholded_rd, getStructuringElement(MORPH_ELLIPSE, Size(5, 5)) );
//morphological closing (fill small holes in the foreground)
dilate( imgThresholded_bl, imgThresholded_bl, getStructuringElement(MORPH_ELLIPSE, Size(5, 5)) );
dilate( imgThresholded_gr, imgThresholded_gr, getStructuringElement(MORPH_ELLIPSE, Size(5, 5)) );
dilate( imgThresholded_rd, imgThresholded_rd, getStructuringElement(MORPH_ELLIPSE, Size(5, 5)) );
erode(imgThresholded_bl, imgThresholded_bl, getStructuringElement(MORPH_ELLIPSE, Size(5, 5)) );
erode(imgThresholded_gr, imgThresholded_gr, getStructuringElement(MORPH_ELLIPSE, Size(5, 5)) );
erode(imgThresholded_rd, imgThresholded_rd, getStructuringElement(MORPH_ELLIPSE, Size(5, 5)) );
// imshow("Thresholded Image Blue", imgThresholded_bl); //show the thresholded image
// imshow("Thresholded Image Green", imgThresholded_gr); //show the thresholded image
// imshow("Thresholded Image Red", imgThresholded_rd); //show the thresholded image
//imshow("Original", imgOriginal); //show the original image
///#### End sticker color selection ####
vector<vector<Point> > contours_bl;
vector<vector<Point> > contours_gr;
vector<vector<Point> > contours_rd;
Mat bimage_bl = imgThresholded_bl >= sliderPos_bl;
Mat bimage_gr = imgThresholded_gr >= sliderPos_gr;
Mat bimage_rd = imgThresholded_rd >= sliderPos_rd;
findContours(bimage_bl, contours_bl, CV_RETR_LIST, CV_CHAIN_APPROX_NONE);
findContours(bimage_gr, contours_gr, CV_RETR_LIST, CV_CHAIN_APPROX_NONE);
findContours(bimage_rd, contours_rd, CV_RETR_LIST, CV_CHAIN_APPROX_NONE);
for(size_t i = 0; i < contours_bl.size(); i++){
size_t count = contours_bl[i].size();
if( count < 6 )
continue;
Mat pointsf;
Mat(contours_bl[i]).convertTo(pointsf, CV_32F);
RotatedRect box = fitEllipse(pointsf);
prevCenter_bl.x = box.center.x;
prevCenter_bl.y = box.center.y;
ellipse(imgOriginal, box, Scalar(0,0,255), 1, CV_AA);
ellipse(imgOriginal, box.center, box.size*0.0001f, box.angle, 0, 360, Scalar(0,255,255), 1, CV_AA);
line(imgOriginal, box.center, prevCenter_gr, cv::Scalar(0,255,0), 1, CV_AA);
}
for(size_t i = 0; i < contours_gr.size(); i++){
size_t count = contours_gr[i].size();
if( count < 6 )
continue;
Mat pointsf;
Mat(contours_gr[i]).convertTo(pointsf, CV_32F);
RotatedRect box = fitEllipse(pointsf);
prevCenter_gr.x = box.center.x;
prevCenter_gr.y = box.center.y;
ellipse(imgOriginal, box, Scalar(0,0,255), 1, CV_AA);
ellipse(imgOriginal, box.center, box.size*0.0001f, box.angle, 0, 360, Scalar(0,255,255), 1, CV_AA);
line(imgOriginal, box.center, prevCenter_rd, cv::Scalar(0,255,0), 1, CV_AA);
}
for(size_t i = 0; i < contours_rd.size(); i++){
size_t count = contours_rd[i].size();
if( count < 6 )
continue;
Mat pointsf;
Mat(contours_rd[i]).convertTo(pointsf, CV_32F);
RotatedRect box = fitEllipse(pointsf);
prevCenter_rd.x = box.center.x;
prevCenter_rd.y = box.center.y;
ellipse(imgOriginal, box, Scalar(0,0,255), 1, CV_AA);
ellipse(imgOriginal, box.center, box.size*0.0001f, box.angle, 0, 360, Scalar(0,255,255), 1, CV_AA);
line(imgOriginal, box.center, prevCenter_bl, cv::Scalar(0,255,0), 1, CV_AA);
}
imshow("result", imgOriginal);
waitKey(10);
}
return 0;
}
void MainWindow::on_ButtonVideoRelease_clicked()
{
if(capture.isOpened())
capture.release();
}
标题：
#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QMainWindow>
#include <opencv2/opencv.hpp>
#include <opencv/cv.hpp>
#include "ui_mainwindow.h"
#include <opencv2/calib3d/calib3d.hpp>
#include <opencv2/highgui/highgui.hpp>
#include <opencv2/imgproc/imgproc.hpp>
#include <opencv2/core/core.hpp>
#include <opencv2/features2d/features2d.hpp>
#include <opencv2/calib3d/calib3d.hpp>
#include <iostream>
#include <stdio.h>
#include <string>
#include <iomanip>
namespace Ui {
class MainWindow;
}
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
explicit MainWindow(QWidget *parent = 0);
~MainWindow();
private:
Ui::MainWindow *ui;
cv::VideoCapture capture;
private slots:
int on_ButtonVideo_clicked();
void on_ButtonVideoRelease_clicked();
};
#endif // MAINWINDOW_H
和.pro
QT += core gui widgets
TARGET = beispiel
TEMPLATE = app
SOURCES += main.cpp\
mainwindow.cpp
HEADERS += mainwindow.h
FORMS += mainwindow.ui
INCLUDEPATH += C:/opencv/build/include/
LIBS += -LC:/opencv/build/x64/vc12/lib \
-lopencv_calib3d249 \
-lopencv_core249 \
-lopencv_highgui249 \
-lopencv_imgproc249 \
它仍然是一样的。 我有opencv 2.4.9。和3.0安装，所以文件夹C：/ opencv / build / x64 / vc12 / lib和C：/ opencv / build / x64 / vc12 / staticlib中有这些库。
lib和staticlib有什么区别？ 任何人都可以帮忙吗？
答案 0 :(得分：0)
您正在尝试关联一个或多个不存在的库：
opencv_calib3d249
当我检查OpenCV 3.0 sfx的内容时，我只能看到这些库：
opencv\build\x64\vc11\staticlib\opencv_calib3d300.lib
opencv\build\x64\vc12\staticlib\opencv_calib3d300.lib
opencv\build\x86\vc11\staticlib\opencv_calib3d300.lib
opencv\build\x86\vc12\staticlib\opencv_calib3d300.lib
所以在我看来，libs的路径（C:/opencv/build/x64/vc12/lib）和文件中的版本号（249）都不正确。
如果要查看您引用的.lib文件，以找出它们导出的方法，请使用与此类似的命令：
dumpbin opencv_calib3d300.lib /symbols
Dumpbin是Visual Studio的一部分，SO上提供了大量信息，例如here。