用Java绘制具有亚像素精度的图像

import java.awt.Color;
import java.awt.Graphics;
import import java.awt.Graphics2D;
import import java.awt.RenderingHints;
import import java.awt.image.BufferedImage;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class SubpixelImage extends JPanel {
    @Override
    public void paintComponent(Graphics g) {
        super.paintComponent(g);
        
        // 创建Graphics2D对象
        Graphics2D g2d = (Graphics2D) g;
        
        // 设置抗锯齿
        g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
        
        // 创建BufferedImage对象
        BufferedImage image = new BufferedImage(200, 200, BufferedImage.TYPE_INT_RGB);
        
        // 绘制图像
        for (int x = 0; x < 200; x++) {
            for (int y = 0; y < 200; y++) {
                float subpixel = x / 200.0f;
                Color color = new Color(subpixel, 0, 0);
                image.setRGB(x, y, color.getRGB());
            }
        }
        
        // 在面板上绘制图像
        g2d.drawImage(image, 0, 0, null);
    }
    
    public static void main(String[] args) {
        JFrame frame = new JFrame("Subpixel Image");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(250, 250);
        frame.add(new SubpixelImage());
        frame.setVisible(true);
    }
}