JAVA：图像处理

java通过Graphics将多张图片进行合并成一张图

/**
 * 合成图片
 * @param tuli 图例图片
 * @param strPic 多张图片的地址
 * @param title 标题
*/
public static String CreatePic(String tuli,String strPic,String title,String filePath){
	String[] overPath=strPic.split(",");
	int width=725,height=683;
	// 创建BufferedImage对象
	BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
	// 获取Graphics2D
	Graphics2D g = image.createGraphics();
	g.setColor(Color.WHITE);
	g.fillRect(0, 0,width, height);
	try {
		for (String path : overPath) {
			BufferedImage bImage = ImageIO.read(new File(path));
			g.drawImage(bImage, 0, 0, width, height, null);
		}
		BufferedImage bImage = ImageIO.read(new File(tuli));
		g.drawImage(bImage,552, 450, 122, 203, null);
	} catch (IOException e) {
		e.printStackTrace();
	}
	
	g.setColor(Color.black);
	BasicStroke wideStroke = new BasicStroke(1.5f);
	g.setStroke(wideStroke);
	g.drawRoundRect(1,1,width-2,height-2,0,0);
	
	//标题
	Font font=new Font("微软雅黑",Font.PLAIN ,23);
	g.setFont(font);
	g.setColor(Color.black);
	//文字
	String title1=title.split(",")[0];
	g.drawString(title1, 256,23);
	font=new Font("仿宋",Font.PLAIN ,20);
	g.setFont(font);
	String title2=title.split(",")[1];
	g.drawString(title2, 222,50);
	String title3="河北省气象台";
	font=new Font("宋体",Font.PLAIN,20);
	g.setFont(font);
	g.drawString(title3, 380,640);
	g.dispose();
	
	try {
		ImageIO.write(image, "png", new File(filePath));
	} catch (IOException e) {
		e.printStackTrace();
	}
	return filePath;
}