如何在java中制作比心图案？

import javax.imageio.ImageIO;

import javax.swing.*;

import java.awt.*;

import java.awt.image.BufferedImage;

import java.io.File;

import java.io.IOException;

public class AscPic {

    public static void main(String[] args) throws IOException {

        String path = "d:/heart3.jpg";//导入的图片

        String base = "love";//将会用这个字符串里的字符填充图片

        BufferedImage image = ImageIO.read(new File(path));//读入图片，并用图片缓冲区对象来接收

        float scale = (float) 1;

        //获取缩放后的宽高

        int width = (int) (image.getWidth()*scale)*3;

        int height = (int) (image.getHeight()*scale);

        //调用缩放方法获取缩放后的图片

        Image img = image.getScaledInstance(width , height, Image.SCALE_DEFAULT);

        image = toBufferedImage(img);

        int[][] imageArray = new int[image.getHeight()][image.getWidth()];

        int[] sum = new int[image.getWidth()];

        int cnt = 0;

        //双层for循环，遍历图片

        for (int y = 0; y < image.getHeight(); y++) {//先竖向遍历，再横向遍历，即一行一行的找，后面也会一行一行的打印

            for (int x = 0; x < image.getWidth(); x++) {

                int color = image.getRGB(x, y);//图片缓冲区自带的方法，可以得到当前点的颜色值，返回值是int类型

                int r=(color>>16)&0xff;

                int g=(color>>8)&0xff;

                int b=color&0xff;

                float gray = 0.299f * r + 0.578f * g + 0.114f * b;//灰度值计算公式，固定比例，无需理解

                int index = Math.round(gray * (base.length()) / 255);

                if(index>=base.length()) {

                    imageArray[y][x] = -1;

                }else {

                    imageArray[y][x] = cnt++;

                    sum[x]+=index;

                }

            }

        }

        for(int i = 0;i<image.getHeight();i++){

            for(int j = 0;j<image.getWidth();j++){

                if(sum[j]==0) continue;

                else if(imageArray[i][j]==-1)

                    System.out.print(" ");//白色的地方打空格，相当于白色背景，这样图片轮廓比较明显

                else

                    System.out.print(base.charAt(imageArray[i][j]%base.length()));//有颜色的地方打字符

            }

            System.out.println();//一行打完，换行

        }

    }

    public static BufferedImage toBufferedImage(Image image) {

        if (image instanceof BufferedImage) {

            return (BufferedImage) image;

        }

        image = new ImageIcon(image).getImage();

        boolean hasAlpha = false;

        BufferedImage bimage = null;

        GraphicsEnvironment ge = GraphicsEnvironment

                .getLocalGraphicsEnvironment();

        try {

            int transparency = Transparency.OPAQUE;

            if (hasAlpha) {

                transparency = Transparency.BITMASK;

            }

            GraphicsDevice gs = ge.getDefaultScreenDevice();

            GraphicsConfiguration gc = gs.getDefaultConfiguration();

            bimage = gc.createCompatibleImage(image.getWidth(null), image

                    .getHeight(null), transparency);

        } catch (HeadlessException e) {

        }

        if (bimage == null) {

            int type = BufferedImage.TYPE_INT_RGB;

            if (hasAlpha) {

                type = BufferedImage.TYPE_INT_ARGB;

            }

            bimage = new BufferedImage(image.getWidth(null), image

                    .getHeight(null), type);

        }

        Graphics g = bimage.createGraphics();

        g.drawImage(image, 0, 0, null);

        g.dispose();

        return bimage;

    }

}