切割图片

public static void main(String[] agrs) {
		try {
			BufferedImage img = ImageIO.read(new File("D:\\Program Files\\myftp\\3.jpg"));
			int w = img.getWidth();
			int h = img.getHeight();
			
			BufferedImage subImg = img.getSubimage(0, 0, w/2, h/2);
			
			ImageIO.write(subImg, "jpg", new File("D:\\Program Files\\myftp\\new.jpg"));
		} catch (IOException e) {
			e.printStackTrace();
		}
	}