java截取unity图片 java截取图片的一部分

import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;

import javax.imageio.ImageIO;
public class ImageCutUtils {

    public static void main(String[] args){
        cutImg("/Users/jinx/Downloads/21.jpg",500,600,"/Users/jinx/Downloads/24.jpg");
    }

    public static void cutImg(String path,int x,int y,String outPath) {//图片路径，截取位置坐标,输出新突破路径
        try {
            File sourcePic = new File(path);
            File outPic = new File(outPath);
            BufferedImage pic = ImageIO.read(sourcePic);
            int imgwidth = pic.getWidth();
            int imgheight = pic.getHeight();
            int widthInt = imgwidth/4;//截取宽度为原图的四分之一宽
            int heightInt = imgheight/4;//截取高度为原图的四分之一高
            //参数依次为，截取起点的x坐标，y坐标，截取宽度，截取高度
            BufferedImage pic2 = pic.getSubimage(x, y, widthInt, heightInt);
            //将截取的子图另行存储
            Image _img = pic2.getScaledInstance(imgwidth, imgheight, Image.SCALE_DEFAULT);
            BufferedImage image = new BufferedImage(imgwidth, imgheight, BufferedImage.TYPE_INT_RGB);
            Graphics2D graphics = image.createGraphics();
            graphics.drawImage(_img, 0, 0, null);
            graphics.dispose();
            OutputStream out = new FileOutputStream(outPic);
            ImageIO.write(image, "jpg", out);
            out.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }


}