Create iamge from pixels

Question

hi!
i need to know how to create an image from array of pixels without using applets..

Answer 1

import java.awt.*;
import java.awt.color.*;
import java.awt.image.*;
import java.io.*;
import java.util.*;
import javax.imageio.*;
import javax.swing.*;
public class Example {
    public static void main(String[] args) throws IOException {
        final int H = 400;
        final int W = 600;
        byte[] pixels = createPixels(W*H);
        BufferedImage image = toImage(pixels, W, H);
        display(image);
        ImageIO.write(image, "jpeg", new File("static.jpeg"));
    public static void _main(String[] args) throws IOException {
        BufferedImage m = new BufferedImage(1, 1, BufferedImage.TYPE_BYTE_GRAY);
        WritableRaster r = m.getRaster();
        System.out.println(r.getClass());
    static byte[] createPixels(int size){
        byte[] pixels = new byte[size];
        Random r = new Random();
        r.nextBytes(pixels);
        return pixels;
    static BufferedImage toImage(byte[] pixels, int w, int h) {
        DataBuffer db = new DataBufferByte(pixels, w*h);
        WritableRaster raster = Raster.createInterleavedRaster(db,
            w, h, w, 1, new int[]{0}, null);
        ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_GRAY);
        ColorModel cm = new ComponentColorModel(cs, false, false,
            Transparency.OPAQUE, DataBuffer.TYPE_BYTE);
        return new BufferedImage(cm, raster, false, null);
    static void display(BufferedImage image) {
        final JFrame f = new JFrame("");
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.getContentPane().add(new JLabel(new ImageIcon(image)));
        f.pack();
        SwingUtilities.invokeLater(new Runnable(){
            public void run() {
                f.setLocationRelativeTo(null);
                f.setVisible(true);
}