JLabel上に表示した画像のクリックした位置の色を取得する

JLabel label = new JLabel(new ImageIcon(image));
label.addMouseListener(new MouseAdapter() {
  @Override public void mousePressed(MouseEvent e) {
    updateViewRect(label);
    Point pt = e.getPoint();
    if (iconRect.contains(pt)) {
      int argb = image.getRGB(pt.x - iconRect.x, pt.y - iconRect.y);
      field.setText(String.format("#%06X", argb & 0x00_FF_FF_FF));
      sample.setIcon(new ColorIcon(new Color(argb, true)));
    }
  }
});