保存网络摄像头中的图像

Question

语言：Java
此外还用于：JMF

下面是代码（没有摆动表单），它允许使用网络相机捕获图像：

MediaLocator getWebCam = new MediaLocator("vfw://0");
    private Player player;
    Timer timer = new Timer(40, this);
    public BufferedImage grabFrameImage() {
        Image image = null;
        FrameGrabbingControl frameGrabbingControl = null;
        if (player != null)
            frameGrabbingControl = (FrameGrabbingControl) player.getControl("javax.media.control.FrameGrabbingControl");
        Buffer buffer = frameGrabbingControl.grabFrame();
        if (buffer != null)
            image = new BufferToImage((VideoFormat) buffer.getFormat()).createImage(buffer);
        if (image != null)
            return (BufferedImage) image;
        return null;
    }
    public WorkWithWebCam() throws NoDataSourceException, IOException, NoPlayerException {
            initComponents();
            player = Manager.createPlayer(Manager.createDataSource(getWebCam));
            player.start();
    }
private void jButton1ActionPerformed(ActionEvent e) {
        timer.start();
    }
    public static void main(String args[]) {
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                try{
                    new WorkWithWebCam().setVisible(true);
                }catch(Exception ex){}
            }
        });
    }
    public void actionPerformed(ActionEvent e) {
        panelMain.getGraphics().drawImage(this.grabFrameImage(), 0, 0, 400, 300, null);
    }

你能告诉如何使用网络摄像头保存图像吗？

展望未来，我们扩展了方法操作已执行：

public void actionPerformed(ActionEvent e) {
        panelMain.getGraphics().drawImage(this.grabFrameImage(), 0, 0, 400, 300, null);
        BufferedImage image = new BufferedImage(400, 300, BufferedImage.TYPE_INT_RGB);
        String fileOut = "temp.jpg";
        Graphics g = image.getGraphics();
        panelMain.paint(g);
        try {
            ImageIO.write(image, "jpg", new FileOutputStream(fileOut));
        } catch (IOException e1) {
            e1.printStackTrace();  //To change body of catch statement use File | Settings | File Templates.
        }
    }

唯一的事情是，没有图片被网络摄像头保存，白色背景在右侧带有垂直条纹。

Answer 1

image = new BufferToImage((VideoFormat) buffer.getFormat()).createImage(buffer);
ImageIO.write(image, "png", new File("screengrab.png"));

有关详细信息，请参阅ImageIO.write(RenderedImage,String,File)。