Face.pro文件:
- QT += core gui
-
- greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
-
- CONFIG += c++11
-
- # The following define makes your compiler emit warnings if you use
- # any Qt feature that has been marked deprecated (the exact warnings
- # depend on your compiler). Please consult the documentation of the
- # deprecated API in order to know how to port your code away from it.
- DEFINES += QT_DEPRECATED_WARNINGS
-
- # You can also make your code fail to compile if it uses deprecated APIs.
- # In order to do so, uncomment the following line.
- # You can also select to disable deprecated APIs only up to a certain version of Qt.
- #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0
-
- SOURCES += \
- main.cpp \
- widget.cpp
-
- HEADERS += \
- widget.h
-
- FORMS += \
- widget.ui
-
- INCLUDEPATH += D:/opencv/opencv3.4-qt-intall/install/include
- INCLUDEPATH += D:/opencv/opencv3.4-qt-intall/install/include/opencv
- INCLUDEPATH += D:/opencv/opencv3.4-qt-intall/install/include/opencv2
- LIBS += D:/opencv/opencv3.4-qt-intall/install/x86/mingw/lib/libopencv_*.a
-
- # Default rules for deployment.
- qnx: target.path = /tmp/$${TARGET}/bin
- else: unix:!android: target.path = /opt/$${TARGET}/bin
- !isEmpty(target.path): INSTALLS += target
widget.h文件:
- #ifndef WIDGET_H
- #define WIDGET_H
-
- #include
- #include
- #include
- #include
- #include
- #include
- #include
- #include
- #include
- #include
- #include
- #include
- #include
- #include
- #include
- #include
- using namespace cv;
- using namespace cv::face;
- using namespace std;
-
- QT_BEGIN_NAMESPACE
- namespace Ui { class Widget; }
- QT_END_NAMESPACE
-
- class Widget : public QWidget
- {
- Q_OBJECT
-
- public:
- Widget(QWidget *parent = nullptr);
- ~Widget();
-
- private slots:
- void on_openBtn_clicked();
-
- void on_closeBtn_clicked();
-
- void on_faceBtn_clicked();
-
- private:
- Ui::Widget *ui;
-
- //=========摄像头相关成员的设置=========
- VideoCapture v; //摄像头容器
- Mat src; //存放 原图 的容器
- Mat gray; //存放 灰度图 的容器
- Mat dst; //存放 直方图 的容器
- Mat rgb; //存放 rgb图 的容器
- CascadeClassifier c; //定义一个级联分类器容器
- vector
faces; // 定义一个数组存放人脸矩形框 - int camera_id; //打开摄像头的定时器id
- void timerEvent(QTimerEvent *e); //定时器事件 重写函数事件声明
-
- //=========人脸录入相关成员的设置=========
- Ptr
recognizer; //人脸 识别器指针 - vector
study_faces; //定义一个存放录入人脸的数组 - vector<int> study_lables; //定义一个存放人脸对应的标签数组
- int count; //记录录入人脸的次数
- int flag; //用来区别是人脸录入还是人脸识别
- int face_id; // 人脸录入定时器id
-
- //=========人脸检测相关成员的设置=========
- int check_id; //
-
- };
- #endif // WIDGET_H
widget.cpp文件:
- #include "widget.h"
- #include "ui_widget.h"
-
- Widget::Widget(QWidget *parent)
- : QWidget(parent)
- , ui(new Ui::Widget)
- {
- ui->setupUi(this);
-
- ui->weChatBtn->setEnabled(false);
-
- //打开系统摄像头
- if(!v.open(0))
- {
- QMessageBox::information(this, "", "打开系统摄像头失败!");
- return;
- }
-
- //配置 级联分类器
- if(!c.load("D:\\opencv\\image\\haarcascade_frontalface_alt.xml"))
- {
- QMessageBox::information(this, "", "配置级联分类器失败!");
- return;
- }
-
- //判断是否录入过人脸
- QFile file("D:\\opencv\\image\\my_face.xml");
- //判断文件是否存在
- if(file.exists())
- {
- //表示之前录入过人脸 则下载文件
- recognizer = LBPHFaceRecognizer::load
("D:\\opencv\\image\\my_face.xml"); -
- }else {
- //表示之前没有录入过人脸
- recognizer = LBPHFaceRecognizer::create();
- }
-
- //启动一个人脸检测定时器
- check_id = startTimer(3000);
- flag = 1; //可以人脸检测
- recognizer->setThreshold(100);
-
- }
-
- Widget::~Widget()
- {
- delete ui;
- }
-
- //打开摄像头按钮对应的 槽函数
- void Widget::on_openBtn_clicked()
- {
- //启动一个定时器
- camera_id = startTimer(30);
- }
-
- //定时器重写的功能函数
- void Widget::timerEvent(QTimerEvent *e)
- {
- //判断是否是 摄像头定时器 超时
- if(e->timerId() == camera_id)
- {
- //读取系统摄像头中的图像
- v.read(src);
-
- //图像反转
- flip(src, src, 1);
-
- //将 bgr 转换成 rgb
- cvtColor(src, rgb, CV_BGR2RGB);
-
- //将图像重新设置大小 适应lab
- cv::resize(rgb, rgb, Size(301,251));
-
- //灰度处理
- cvtColor(rgb, gray, CV_RGB2GRAY);
-
- //均衡化处理
- equalizeHist(gray, dst);
-
- //锁定人脸矩形框位置
- c.detectMultiScale(dst, faces);
-
- //将矩形框绘制到人脸上
- for(uint i=0; i
size(); i++) - {
- rectangle(rgb, faces[i], Scalar(255,0,0),2);
- }
-
- //将图像放入 lab 中
- QImage img(rgb.data, rgb.cols, rgb.rows, rgb.cols*rgb.channels(), QImage::Format_RGB888);
-
- ui->label->setPixmap(QPixmap::fromImage(img));
-
- }
-
- //判断是否是 人脸录入定时器 超时
- if(e->timerId() == face_id)
- {
- if(0 == flag)
- {
-
- qDebug() << "人脸录入中,请正视摄像头!";
-
- Mat face = src(faces[0]); //将摄像头当前的一帧图像上的一个人脸给face
-
- //灰度处理
- cvtColor(face, face, CV_BGR2GRAY);
-
- //均衡化处理
- equalizeHist(face, face);
-
- //将人脸放入数组中
- study_faces.push_back(face);
- study_lables.push_back(1);
-
- count++;
- if(50 == count)
- {
- //将图像模型转换成数据模型
- recognizer->update(study_faces, study_lables);
- recognizer->save("D:\\opencv\\image\\my_face.xml");
-
- QMessageBox::information(this, "", "录入人脸成功!");
- //关闭定时器
- killTimer(face_id);
- flag = 1; //表示可以人脸识别
- study_faces.clear(); //将存放人脸数组清空,方便下次录入
- study_lables.clear();
-
- }
- }
- }
-
- //判断是否是 人脸检测定时器 超时
- if(e->timerId() == check_id)
- {
- if(1 == flag)
- {
- QFile file("D:\\opencv\\image\\my_face.xml");
-
- if(file.exists())
- {
- if(recognizer.empty() || faces.empty())
- {
- return;
- }
-
- Mat face = src(faces[0]);
-
- //灰度处理
- cvtColor(face, face, CV_BGR2GRAY);
-
- //
- equalizeHist(face, face);
-
- int lab = -1;
- double cof = 0.0;
-
- recognizer->predict(face, lab, cof);
-
- //根据 lab 判断是否识别成功
- if(lab != -1)
- {
- QMessageBox::information(this, "", "人脸识别成功!");
-
- ui->weChatBtn->setEnabled(true);
-
- killTimer(check_id);
-
- }
-
- }
-
- }
- }
-
- }
-
- //关闭摄像头按钮对应的槽函数
- void Widget::on_closeBtn_clicked()
- {
- killTimer(camera_id);
- }
-
- //录入人脸按钮对应的槽函数
- void Widget::on_faceBtn_clicked()
- {
- count = 0; // 将录入人脸的次数设置为0
- flag = 0; //表示只能做人脸录入,不能做人脸检测
- face_id = startTimer(50);
-
- }
main.c文件:
- #include "widget.h"
-
- #include
-
- int main(int argc, char *argv[])
- {
- QApplication a(argc, argv);
- Widget w;
- w.show();
- return a.exec();
- }
ui布局:
