java中的接口是类吗
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2023-01-01
Java+OpenCV实现人脸检测并自动拍照
java+opencv实现人脸检测,调用笔记本摄像头实时抓拍,人脸会用红色边框标识出来,并且将抓拍的目录存放在src下,图片名称是时间戳。
环境配置:win7 64位,jdk1.8
CameraBasic.java
package com.njupt.zhb.test;
import java.awt.EventQueue;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import org.opencv.core.*;
import org.opencv.highgui.Highgui;
import org.opencv.highgui.VideoCapture;
import org.opencv.imgproc.Imgproc;
import org.opencv.objdetect.CascadeClassifier;
/**
* 动态人脸检测并裁剪
* @author hyj
*
*/
public class CameraBasic {
static {
System.out.println(System.getProperty("java.library.path"))OkYeNCA;
System.loadLibrary(Core.NATIVE_LIBRARY_NAME);
}
private JFrame frame;
private static JLabel label;
private static int flag = 0;
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
try {
CameraBasic window = new CameraBasic();
window.frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
VideoCapture camera = new VideoCapture();//创建Opencv中的视频捕捉对象
camera.open(0);//open函数中的0代表当前计算机中索引为0的摄像头,如果你的计算机有多个摄像头,那么一次1,2,3……
if (!camera.isOpened()) {//isOpened函数用来判断http://摄像头调用是否成功
System.out.println("Camera Error");//如果摄像头调用失败,输出错误信息
} else {
Mat frame = new Mat();//创建一个输出帧
while (flag == 0) {
camera.read(frame);//read方法读取摄像头的当前帧
// CascadeClassifier faceDetector = new CascadeClassifier("src/com/njupt/zhb/test/lbpcascade_frontalface.xml");
CascadeClassifier faceDetector = new CascadeClassifier("src/com/njupt/zhb/test/haarcascade_frontalface_alt.xml");
MatOfRect faceDetections = new MatOfRect();
faceDetector.detectMultiScale(frame, faceDetections);
Rect [] rectArray = faceDetections.toArray();
if (rectArray.length > 0) {
for (int i=0;i Rect rect = rectArray[i]; Rect rectCrop = new Rect(rect.x, rect.y, rect.width, rect.height); if (rect.width + rect.height > rectCrop.height + rectCrop.width) { rectCrop = new Rect(rect.x, rect.y, rect.width, rect.height); } System.out.println(String.format("检测到 %s 个人脸! ", rectArray.length)); Mat imageRoi = new Mat(frame, rectCrop); String name = System.currentTimeMillis()+".png"; Highgui.imwrite(name, imageRoi); Core.rectangle(frame, new Point(rect.x, rect.y), new Point(rect.x + rect.width, rect.y + rect.height), new Scalar(0, 0, 255), 2); } } //转换图像格式并输出 label.setIcon(new ImageIcon(mat2BufferedImage.matToBufferedImage(frame))); try { Thread.sleep(500);//线程暂停500ms } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } // if (faceCount > 0) { // faceSerialCount++; // System.out.println(faceSerialCount); // } else { // faceSerialCount = 0; // } // // if (faceSerialCount > 6) { // Mat imageRoi = new Mat(frame, rectCrop); // Highgui.imwrite("haha.png", imageRoi); // faceSerialCount = 0; // } } } } private CameraBasic() { initialize(); } private void initialize() { frame = new JFrame(); frame.setBounds(100, 100, 1000, 600); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.getContentPane().setLayout(null); label = new JLabel(""); label.setBounds(0, 0, 1000, 500); frame.getContentPane().add(label); } } 完整源码下载地址:Java+OpenCV实现人脸检测并拍照
Rect rect = rectArray[i];
Rect rectCrop = new Rect(rect.x, rect.y, rect.width, rect.height);
if (rect.width + rect.height > rectCrop.height + rectCrop.width) {
rectCrop = new Rect(rect.x, rect.y, rect.width, rect.height);
}
System.out.println(String.format("检测到 %s 个人脸! ", rectArray.length));
Mat imageRoi = new Mat(frame, rectCrop);
String name = System.currentTimeMillis()+".png";
Highgui.imwrite(name, imageRoi);
Core.rectangle(frame, new Point(rect.x, rect.y), new Point(rect.x + rect.width, rect.y + rect.height), new Scalar(0, 0, 255), 2);
}
}
//转换图像格式并输出
label.setIcon(new ImageIcon(mat2BufferedImage.matToBufferedImage(frame)));
try {
Thread.sleep(500);//线程暂停500ms
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// if (faceCount > 0) {
// faceSerialCount++;
// System.out.println(faceSerialCount);
// } else {
// faceSerialCount = 0;
// }
//
// if (faceSerialCount > 6) {
// Mat imageRoi = new Mat(frame, rectCrop);
// Highgui.imwrite("haha.png", imageRoi);
// faceSerialCount = 0;
// }
}
}
}
private CameraBasic() {
initialize();
}
private void initialize() {
frame = new JFrame();
frame.setBounds(100, 100, 1000, 600);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().setLayout(null);
label = new JLabel("");
label.setBounds(0, 0, 1000, 500);
frame.getContentPane().add(label);
}
}
完整源码下载地址:Java+OpenCV实现人脸检测并拍照
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