import org.bytedeco.javacv.OpenCVFrameGrabber; //导入依赖的package包/类
@Override
public void start() {
    OpenCVFrameGrabber grabberCV = new OpenCVFrameGrabber(this.systemNumber);
    grabberCV.setImageWidth(width());
    grabberCV.setImageHeight(height());
    grabberCV.setFrameRate(frameRate);
    grabberCV.setImageMode(FrameGrabber.ImageMode.COLOR);
 
    try {
        grabberCV.start();
        this.grabber = grabberCV;
        this.isConnected = true;
    } catch (Exception e) {
        System.err.println("Could not start frameGrabber... " + e);

        System.err.println("Could not camera start frameGrabber... " + e);
        System.err.println("Camera ID " + this.systemNumber + " could not start.");
        System.err.println("Check cable connection, ID and resolution asked.");

        this.grabber = null;
    }
}
 

import org.bytedeco.javacv.OpenCVFrameGrabber; //导入依赖的package包/类
@Override
public void start() {
    OpenCVFrameGrabber grabberCV = new OpenCVFrameGrabber(this.systemNumber);
    grabberCV.setImageWidth(width());
    grabberCV.setImageHeight(height());
    grabberCV.setImageMode(FrameGrabber.ImageMode.COLOR);
 
    try {
        grabberCV.start();
        this.grabber = grabberCV;
        this.isConnected = true;
    } catch (Exception e) {
        System.err.println("Could not start frameGrabber... " + e);

        System.err.println("Could not camera start frameGrabber... " + e);
        System.err.println("Camera ID " + this.systemNumber + " could not start.");
        System.err.println("Check cable connection, ID and resolution asked.");

        this.grabber = null;
    }
}
 

import org.bytedeco.javacv.OpenCVFrameGrabber; //导入依赖的package包/类
@Override
public FrameGrabber create(int deviceNumber) {
  // On Windows, videoInput is much more reliable for webcam capture.  On other platforms,
  // OpenCV's frame
  // grabber class works fine.
  if (StandardSystemProperty.OS_NAME.value().contains("Windows")) {
    return new VideoInputFrameGrabber(deviceNumber);
  } else {
    return new OpenCVFrameGrabber(deviceNumber);
  }
}
 

import org.bytedeco.javacv.OpenCVFrameGrabber; //导入依赖的package包/类
public OpenCVWebCam(int device, int width, int height) {
	this.grabber = new OpenCVFrameGrabber(device);
	grabber.setImageWidth(width);
	grabber.setImageHeight(height);
	this.setBackground(Color.LIGHT_GRAY);
}