javacpp 人脸_使用JavaCV播放视频、摄像头、人脸识别

import org.bytedeco.javacpp.*;import org.bytedeco.javacv.*;importorg.junit.Test;import javax.swing.*;importjava.io.File;importjava.math.RoundingMode;importjava.net.MalformedURLException;importjava.util.Map;importjava.util.concurrent.TimeUnit;import staticorg.bytedeco.javacpp.opencv_core.Mat;import staticorg.bytedeco.javacpp.opencv_imgproc.COLOR_BGRA2GRAY;public classJavaCVTest {private void showFrames(String winTitle, FrameGrabber grabber) throwsFrameGrabber.Exception, InterruptedException {

CanvasFrame canvas= new CanvasFrame(winTitle,1);//新建一个窗口

canvas.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);

canvas.setAlwaysOnTop(true);while (true) {if (!canvas.isVisible()) {break;

}

Frame frame=grabber.grab();

canvas.showImage(frame);

Thread.sleep(50);//50毫秒刷新一次图像

}

}private void showFramesWithFace(String winTitle, FrameGrabber grabber) throwsFrameGrabber.Exception, InterruptedException {

OpenCVFrameConverter.ToMat convertToMat= newOpenCVFrameConverter.ToMat();

File fileAbsolutePath= new File(ClassLoader.getSystemClassLoader().getResource("data/lbpcascade_frontalface_improved.xml").getFile());//opencv_objdetect.CvHaarClassifierCascade face_cascade=opencv_objdetect.cvLoadHaarClassifierCascade(fileAbsolutePath.getAbsolutePath(),new opencv_core.CvSize(0,0));

opencv_objdetect.CascadeClassifier face_cascade = newopencv_objdetect.CascadeClassifier(fileAbsolutePath.getAbsolutePath());

opencv_core.RectVector faces= newopencv_core.RectVector();

CanvasFrame canvas= new CanvasFrame(winTitle,1);//新建一个窗口

canvas.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);

canvas.setAlwaysOnTop(true);while (true) {if (!canvas.isVisible()) {break;

}

Frame frame=grabber.grab();

Mat mat=convertToMat.convert(frame);if(mat.empty())continue;

Mat videoMatGray= newMat();

opencv_imgproc.cvtColor(mat, videoMatGray, COLOR_BGRA2GRAY);

opencv_imgproc.equalizeHist(videoMatGray, videoMatGray);//int[] rejectLevels = new int[0];//double[] levelWeights = new double[0];

face_cascade.detectMultiScale(videoMatGray, faces);for (int i = 0; i < faces.size(); i++) {

opencv_core.Rect face=faces.get(i);

opencv_imgproc.rectangle(mat, face, opencv_core.Scalar.RED,4, 8, 0);

}//opencv_highgui.imshow(winTitle, mat);//opencv_highgui.waitKey(30);

canvas.showImage(convertToMat.convert(mat));

Thread.sleep(30);//50毫秒刷新一次图像

}

}

@Testpublic void testCamera() throwsInterruptedException, FrameGrabber.Exception {

OpenCVFrameGrabber grabber= new OpenCVFrameGrabber(0);

grabber.setImageWidth(1280);

grabber.setImageHeight(720);

grabber.start();//开始获取摄像头数据

showFrames("Camera", grabber);

grabber.stop();

grabber.close();

}

@Testpublic void testCamera1() throwsFrameGrabber.Exception, InterruptedException {

VideoInputFrameGrabber grabber= new VideoInputFrameGrabber(0);

grabber.start();//开始获取摄像头数据

showFrames("Camera", grabber);

grabber.stop();

grabber.close();

}

@Testpublic void testCamera2() throwsFrameGrabber.Exception, InterruptedException, MalformedURLException {

IPCameraFrameGrabber grabber= new IPCameraFrameGrabber("http://admin:[email protected]:554/MPEG-4/ch1/main/av_stream", 30, 30, TimeUnit.SECONDS);

grabber.start();

showFrames("IPCamera", grabber);

grabber.stop();

grabber.close();

}

@Testpublic void testVideo() throwsFrameGrabber.Exception, InterruptedException, MalformedURLException {

FFmpegFrameGrabber grabber= FFmpegFrameGrabber.createDefault("rtmp://127.0.0.1:12580/live/app"); //这里也可以是本地文件，也可以网络文件。如：rtmp://127.0.0.1:12580/live/app

grabber.setImageWidth(1366);

grabber.setImageHeight(768);

grabber.start();

showFrames("Video", grabber);

grabber.stop();

grabber.close();

}

@Testpublic void testFaceRecognize() throwsFrameGrabber.Exception, InterruptedException, MalformedURLException, FrameRecorder.Exception {

OpenCVFrameGrabber grabber= OpenCVFrameGrabber.createDefault(0);

grabber.start();

showFramesWithFace("Video", grabber);

grabber.stop();

grabber.close();

}}