How can I mousedrag different BufferedImages in Java2D?

For instance, if I have ten or more images, how can I move that images which my mouse is over?

Now I'm importing an BufferedImage with

BufferedImage img = new BufferdImage(new File("filename"));

And I'm painting this with Graphics2D with

public void paintComponent(Graphics g) {
    super.paintComponent(g);
    g2d = (Graphics2D) g;
    g2d.drawImage(img, x1, y1, null);
    g2d.drawImage(img2, x2, y2,null);
}

Everytime I'm moving on a image I'm repaint()-ing the entire screen. My mousemove class is as follows

class MouseMotionHandler extends MouseMotionAdapter {

    @Override
    public void mouseDragged(MouseEvent e) {
        x1 = e.getX() - (img.getWidth() / 2);
        y1 = e.getY() - (img.getHeight() / 2);
        repaint();
    }
}

With this method I'm able to "drag" one picture, but what to do when I will drag more individually?