Eigenfaces face recognizer gives error: unresolved external symbols
Hej - I'm having probems with making the Eigenface-part of this turtorial: http://docs.opencv.org/modules/contrib/doc/facerec/facerec_tutorial.html#eigenfaces
When I try to run it I get these errors:
1>main.obj : error LNK2019: unresolved external symbol "class cv::Mat __cdecl cv::subspaceReconstruct(class cv::_InputArray const &,class cv::_InputArray const &,class cv::_InputArray const &)" (?subspaceReconstruct@cv@@YA?AVMat@1@ABV_InputArray@1@00@Z) referenced in function __catch$_main$0 1>main.obj : error LNK2019: unresolved external symbol "class cv::Mat __cdecl cv::subspaceProject(class cv::_InputArray const &,class cv::_InputArray const &,class cv::_InputArray const &)" (?subspaceProject@cv@@YA?AVMat@1@ABV_InputArray@1@00@Z) referenced in function __catch$_main$0 1>main.obj : error LNK2019: unresolved external symbol "void __cdecl cv::applyColorMap(class cv::_InputArray const &,class cv::_OutputArray const &,int)" (?applyColorMap@cv@@YAXABV_InputArray@1@ABV_OutputArray@1@H@Z) referenced in function __catch$_main$0 1>main.obj : error LNK2019: unresolved external symbol "class cv::Ptr<class cv::facerecognizer=""> __cdecl cv::createEigenFaceRecognizer(int,double)" (?createEigenFaceRecognizer@cv@@YA?AV?$Ptr@VFaceRecognizer@cv@@@1@HN@Z) referenced in function __catch$_main$0
Is there someone who can help me with this? I cannot figure out what I'm doing wrong...
The actual code look like this:
#include "opencv2/core/core.hpp"
#include "opencv2/contrib/contrib.hpp"
#include "opencv2/highgui/highgui.hpp"
#include <iostream>
#include <fstream>
using namespace cv;
using namespace std;
// Function, which creates a normalized image
static Mat norm_0_255(InputArray _src) {
Mat src = _src.getMat();
// Create and return normalized image:
Mat dst;
switch(src.channels()) {
case 1:
cv::normalize(_src, dst, 0, 255, NORM_MINMAX, CV_8UC1);
break;
case 3:
cv::normalize(_src, dst, 0, 255, NORM_MINMAX, CV_8UC3);
break;
default:
src.copyTo(dst);
break;
}
return dst;
}
// Reads the csv-file in, which includes the images from the image-database:
static void read_csv(const string& filename, vector<Mat>& images, vector<int>& labels, char separator = ';') {
//
std::ifstream file(filename.c_str(), ifstream::in);
// If there is no file, then it comes out with an error message:
if (!file) {
string error_message = "No valid input file was given, please check the given filename.";
CV_Error(CV_StsBadArg, error_message);
}
string line, path, classlabel;
// As long as there is lines in the file, the program takes in the next line in the csv-file:
while (getline(file, line)) {
stringstream liness(line);
getline(liness, path, separator);
getline(liness, classlabel);
// If there is no more lines:
if(!path.empty() && !classlabel.empty()) {
images.push_back(imread(path, 0));
labels.push_back(atoi(classlabel.c_str()));
}
}
}
int main(int argc, const char *argv[]) {
// Check for valid command line arguments, print usage
// if no arguments were given.
if (argc < 2) {
//cout this and exit the program
cout << "usage: " << argv[0] << " <csv.ext> <output_folder> " << endl;
exit(1);
}
string output_folder;
// if there are 3 arguments given:
if (argc == 3) {
output_folder = string(argv[2]);
}
// Get the path to the CSV-file.
string fn_csv = string(argv[1]); //"...\attFaceDatabaseText.csv";
// These vectors hold the images and corresponding labels.
vector<Mat> images;
vector<int> labels;
// Read in the data. This can fail if no valid ...