我正在尝试使用OpenCV
进行面部检测,对OpenCV
来说还是新手。
这是我的代码:
#include <opencv2/core/core.hpp>
#include <opencv2/contrib/contrib.hpp>
#include <opencv2/highgui/highgui.hpp>
#include <opencv2/imgproc/imgproc.hpp>
#include <opencv2/objdetect/objdetect.hpp>
#include <iostream>
#include <fstream>
#include <sstream>
using namespace cv;
using namespace std;
static void read_csv(const string& filename, vector<Mat>& images, vector<int>& labels, char separator = ';') {
std::ifstream file(filename.c_str(), ifstream::in);
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;
while (getline(file, line)) {
stringstream liness(line);
getline(liness, path, separator);
getline(liness, classlabel);
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[]) {
string fn_haar = "haarcascade_frontalface_alt2.xml";
string fn_csv = "reader.txt";
int deviceId = 0;
// These vectors hold the images and corresponding labels:
vector<Mat> images;
vector<int> labels;
try {
read_csv(fn_csv, images, labels);
}
catch (cv::Exception& e) {
cerr << "Error opening file \"" << fn_csv << "\". Reason: " << e.msg << endl;
// nothing more we can do
exit(1);
}
int im_width = images[0].cols;
int im_height = images[0].rows;
Ptr<FaceRecognizer> model = createFisherFaceRecognizer();
model->train(images, labels);
CascadeClassifier haar_cascade;
haar_cascade.load(fn_haar);
VideoCapture cap(deviceId);
if (!cap.isOpened()) {
cerr << "Capture Device ID " << deviceId << "cannot be opened." << endl;
return -1;
}
Mat frame;
while (true) {
cap >> frame;
Mat original = frame.clone();
Mat gray;
cvtColor(original, gray, CV_BGR2GRAY);
vector< Rect_<int> > faces;
haar_cascade.detectMultiScale(gray, faces);
for (int i = 0; i < faces.size(); i++) {
Rect face_i = faces[i];
Mat face = gray(face_i);
Mat face_resized;
cv::resize(face, face_resized, Size(im_width, im_height), 1.0, 1.0, INTER_CUBIC);
int prediction = model->predict(face_resized);
rectangle(original, face_i, CV_RGB(0, 255, 0), 1);
string box_text = format("Prediction = %d", prediction);
int pos_x = std::max(face_i.tl().x - 10, 0);
int pos_y = std::max(face_i.tl().y - 10, 0);
putText(original, box_text, Point(pos_x, pos_y), FONT_HERSHEY_PLAIN, 1.0, CV_RGB(0, 255, 0), 2.0);
}
namedWindow("face_recognizer", 1);
imshow("face_recognizer", original);
char key = (char)waitKey(20);
if (key == 27)
break;
}
return 0;
}
这是我的reader.txt文件
C:\Users\Hitanshu Dhawan\Documents\Visual Studio 2013\Projects\ConsoleApplication21\ConsoleApplication21\obama\obama1.jpg;0
C:\Users\Hitanshu Dhawan\Documents\Visual Studio 2013\Projects\ConsoleApplication21\ConsoleApplication21\obama\obama2.jpg;0
现在,问题是我的代码无法运行,它显示一些错误“内存位置异常”和“整数除零”和“opencv_core2410d.pdb未加载”......
我尝试了很多方法,例如在Linker > Input
中添加不同的lib。
我还检查了Microsoft Symbol Servers。
此外,我的.xml
和.csv
文件也已正确复制到应用程序文件夹中!
以下是一些截图: