如何从图像中切出并保存矩形? [英] How to cut out and save a rectangle from an image?

问题描述

如何剪切图像并将其保存到其他图像?

How can cut the image and save it block to another image?

推荐答案

如果src是BufferedImage，则可以从中切出矩形(x1,y1)-(x2,y2)并将其写到dst.png中，如下所示:

If src is a BufferedImage, then you can cut the rectangle (x1,y1)-(x2,y2) from it and write that to dst.png like this:

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"));

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