/* package whatever; // don't place package name! */
package java_hw_01;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.GridLayout;
import java.awt.Image;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.imageio.ImageIO;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.SwingUtilities;
import javax.swing.border.LineBorder;


public class divide_image extends JFrame {

	public JFrame frame;
    public JButton[] button;
    public static String imagePath = "/Users/chulgu/Documents/Admin_s_folder/background/Sculpture-Liberty-Wallpaper-HD.jpg";
    public final int rows = 16; //You should decide the values for rows and cols variables
    public final int cols = 16;
    public final int chunks = rows * cols;
    public final int SPACING = 0;//spacing between split images

   public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {

            @Override
            public void run() {
                new divide_image().createAndShowUI();
            }
        });
    }

    void createAndShowUI() {
        frame = new JFrame("divide_16*16_image");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        initComponents();
        frame.setResizable(false);
        frame.pack();
        frame.setVisible(true);
    }

	private void initComponents() {
        BufferedImage[] imgs = getImages();

        //set contentpane layout for grid
        frame.getContentPane().setLayout(new GridLayout(rows, cols, SPACING, SPACING));

        button = new JButton[imgs.length];

        //create JButtons with split images and add to frame contentPane
        for (int i = 0; i < imgs.length; i++) {
            button[i] = new JButton(new ImageIcon(Toolkit.getDefaultToolkit().createImage(imgs[i].getSource())));
            button[i].setBorder(new LineBorder(Color.BLACK)); // paint button's border
            frame.getContentPane().add(button[i]);
           
        }
    }

private void image_buff() {
		// TODO Auto-generated method stub
		
	}

    private BufferedImage[] getImages() {
        File file = new File(imagePath); // I have bear.jpg in my working directory
        FileInputStream fis = null;
        try {
            fis = new FileInputStream(file);
        } catch (FileNotFoundException ex) {
            Logger.getLogger(divide_image.class.getName()).log(Level.SEVERE, null, ex);
        }
        BufferedImage image = null;
        try {
            image = ImageIO.read(fis); //reading the image file
        } catch (IOException ex) {
            Logger.getLogger(divide_image.class.getName()).log(Level.SEVERE, null, ex);
        }
        int chunkWidth = image.getWidth() / cols; // determines the chunk width and height
        int chunkHeight = image.getHeight() / rows;
        int count = 0;
        BufferedImage imgs[] = new BufferedImage[chunks]; //Image array to hold image chunks
        for (int x = 0; x < rows; x++) {
            for (int y = 0; y < cols; y++) {
                //Initialize the image array with image chunks
                imgs[count] = new BufferedImage(chunkWidth, chunkHeight, image.getType());

                // draws the image chunk
                Graphics2D gr = imgs[count++].createGraphics();
                gr.drawImage(image, 0, 0, chunkWidth, chunkHeight, chunkWidth * y, chunkHeight * x, chunkWidth * y + chunkWidth, chunkHeight * x + chunkHeight, null);
                gr.dispose();
            }
        }
        return imgs;
    }
}


제이프레임으로 짠 소스입니다......

일단  여기까진 이미지가 256개로 잘 분할이 됩니다.

근데 이걸 버튼을 하나 누르면 모자이크 효과가 일어나고 다시 누르면 원상 복구가 되야합니다....

문제는 액션을 어떻게 넣어야 하는지 이틀 밤을 새서 고민했는데....

구글에도 다 소스가 다르고 하니까 멘탈이 다 터지더라고요....

성님들... 정말  한번 멘탈좀 회복시켜주세요...