扩大有富馀的可乐
项目总体结构图323131335323631343130323130331363533 e 4b 893 e 5b 19e 313337383961 :
将DetectFaceDemo.java编写如下：
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package com.njupt.zhb.test；
import org.opencv.core.Core；
import org.opencv.core.Mat；
importorg.opencv.core.matofrect；
import org.opencv.core.Point；
import org.opencv.core.Rect；
import org.opencv.core.Scalar；
importorg.opencv.highgui.highgui；
importorg.opencv.obj detect.cascade classifier；
//
//Detects faces in an image，draws boxes around them，and writes the results
//to 'faceDetection.png '。
//
公共类检测功能演示{
公共void run (}
//createafacedetectorfromthecascadefileintheresources
//目录。
//cascadeclassifierfacedetector=newcascadeclassifier (getclass ).get resource (LBP cascade _ frontal face.XML ' ) )
//matimage=highgui.im read (getclass (.get resource (' Lena.png ' ).getPath ) )；
//注意：由于源程序路径中多打印了一个“/”，因此总是出现以下错误
/*
//因此，删除第一个字符
stringxmlfilepath=getclass (.get resource (' LBP cascade _ frontal face.XML ' ).getPath ).substring(1) 1；
cascadeclassifierfacedetector=newcascadeclassifier (xmlfile路径)；
//Detect faces in the image。
//matofrectisaspecialcontainerclassforrect。
face detector.detect multiscale (image，faceDetections；
//drawaboundingboxaroundeachface。
for (rect rect : face detections.to array () ) )。
core.rectangle(image，newpoint ) rect.y，rect.y )，newpoint ) rect.xrect.width，rect.y rect.height，news
}
//Save the visualized
detection.String filename = "faceDetection.png";
Highgui.imwrite(filename, image);
}
}
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;
//
// Detects faces in an image, draws boxes around them, and writes the results
// to "faceDetection.png".
//
public class DetectFaceDemo {
public void run() {
// Create a face detector from the cascade file in the resources
// directory.
//CascadeClassifier faceDetector = new CascadeClassifier(getClass().getResource("lbpcascade_frontalface.xml").getPath());
//Mat image = Highgui.imread(getClass().getResource("lena.png").getPath());
//注意：源程序的路径会多打印一个‘/’，因此总是出现如下错误
/*
//因此，我们将第一个字符去掉
String xmlfilePath=getClass().getResource("lbpcascade_frontalface.xml").getPath().substring(1);
CascadeClassifier faceDetector = new CascadeClassifier(xmlfilePath);
// Detect faces in the image.
// MatOfRect is a special container class for Rect.
faceDetector.detectMultiScale(image, faceDetections);
// Draw a bounding box around each face.
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));
}
// Save the visualized detection.
String filename = "faceDetection.png";
Highgui.imwrite(filename, image);
}
}
3.编写测试类：
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package com.njupt.zhb.test;
public class TestMain {
public static void main(Stringwxdhn args) {
// Load the native library.
new DetectFaceDemo().run();
}
}
//运行结果:
//Hello, 受伤的玫瑰/p>
//
//Running wmdqyg/p>
///E:/eclipse笨笨的咖啡豆/workspace/JavaOpenCV246/bin/com/njupt/zhb/test/lbpcascade_frontalface.xml
//Detected 8 faces
//Writing faceDetection.png
package com.njupt.zhb.test;
public class TestMain {
public static void main(Stringwxdhn args) {
// Load the native library.
new DetectFaceDemo().run();
}
}
//运行结果:
//Hello, 受伤的玫瑰/p>
//
//Running wmdqyg/p>
///E:/eclipse笨笨的咖啡豆/workspace/JavaOpenCV246/bin/com/njupt/zhb/test/lbpcascade_frontalface.xml
//Detected 8 faces
//Writing faceDetection.png
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