如何从图像中剪切并保存矩形？

Question

如何剪切图像并将其保存到另一个图像？

Answer 1

如果src是a BufferedImage,则可以从中剪切矩形(x1,y1)-(x2,y2)并将其写为dst.png:

final BufferedImage dst = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);    

Graphics2D g = dst.createGraphics();
g.drawImage(src, x1, y1, x2, y2, null);
g.dispose();

ImageIO.write(dst, "PNG", new FileOutputStream("dst.png"));