OpenCV246人脸检测
来源:互联网 发布:java 异步方法 编辑:程序博客网 时间:2024/05/30 05:20
1.环境搭建:见上一篇博客
整个项目的结构图:
2.编写DetectFaceDemo.java,代码如下:
- package com.njupt.zhb.test;
- import org.opencv.core.Core;
- import org.opencv.core.Mat;
- import org.opencv.core.MatOfRect;
- import org.opencv.core.Point;
- import org.opencv.core.Rect;
- import org.opencv.core.Scalar;
- import org.opencv.highgui.Highgui;
- import org.opencv.objdetect.CascadeClassifier;
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- public class DetectFaceDemo {
- public void run() {
- System.out.println("\nRunning DetectFaceDemo");
- System.out.println(getClass().getResource("lbpcascade_frontalface.xml").getPath());
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- String xmlfilePath=getClass().getResource("lbpcascade_frontalface.xml").getPath().substring(1);
- CascadeClassifier faceDetector = new CascadeClassifier(xmlfilePath);
- Mat image = Highgui.imread(getClass().getResource("we.jpg").getPath().substring(1));
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- MatOfRect faceDetections = new MatOfRect();
- faceDetector.detectMultiScale(image, faceDetections);
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- System.out.println(String.format("Detected %s faces", faceDetections.toArray().length));
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- for (Rect rect : faceDetections.toArray()) {
- Core.rectangle(image, new Point(rect.x, rect.y), new Point(rect.x + rect.width, rect.y + rect.height), new Scalar(0, 255, 0));
- }
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- String filename = "faceDetection.png";
- System.out.println(String.format("Writing %s", filename));
- Highgui.imwrite(filename, image);
- }
- }
3.编写测试类:- package com.njupt.zhb.test;
- public class TestMain {
- public static void main(String[] args) {
- System.out.println("Hello, OpenCV");
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- System.loadLibrary("opencv_java246");
- new DetectFaceDemo().run();
- }
- }
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