How to create png image with the pixels array?

[xie yufei]

I attempt to use MemoryImageSource but I don't know how to create the image and how to reserve the image?

import java.awt.*;
import java.awt.image.*;
import java.awt.event.*;
import java.io.*;
import javax.imageio.*;
 
public class Test {
public static void main(String[] args) {

Color[]colors = { 
Color.red, Color.yellow, Color.blue, Color.cyan,
Color.white, Color.green, Color.magenta, 
Color.orange};
 
byte[] reds = { 
(byte)colors[0].getRed(),(byte)colors[1].getRed(),
(byte)colors[2].getRed(),(byte)colors[3].getRed(),
(byte)colors[4].getRed(),(byte)colors[5].getRed(),
(byte)colors[6].getRed(),(byte)colors[7].getRed() };
 
byte[] greens = { 
(byte)colors[0].getGreen(),(byte)colors[1].getGreen(),
(byte)colors[2].getGreen(),(byte)colors[3].getGreen(),
(byte)colors[4].getGreen(),(byte)colors[5].getGreen(),
(byte)colors[6].getGreen(),(byte)colors[7].getGreen()
};
 
byte[] blues = { 
(byte)colors[0].getBlue(),(byte)colors[1].getBlue(),
(byte)colors[2].getBlue(),(byte)colors[3].getBlue(),
(byte)colors[4].getBlue(),(byte)colors[5].getBlue(),
(byte)colors[6].getBlue(),(byte)colors[7].getBlue()};
 
IndexColorModel icm = new IndexColorModel(
8, // bits per pixel
8, // size of arrays that follow
reds,  // red components
greens, // green components
blues);// blue components
Image image;
 
int[] imageBits = new int[] { 
0,0,0,1,1,1,2,2,2,3,3,3,4,4,4,5,5,5,6,6,6,7,7,7,
0,0,0,1,1,1,2,2,2,3,3,3,4,4,4,5,5,5,6,6,6,7,7,7,
0,0,0,1,1,1,2,2,2,3,3,3,4,4,4,5,5,5,6,6,6,7,7,7,
0,0,0,1,1,1,2,2,2,3,3,3,4,4,4,5,5,5,6,6,6,7,7,7,
0,0,0,1,1,1,2,2,2,3,3,3,4,4,4,5,5,5,6,6,6,7,7,7,
0,0,0,1,1,1,2,2,2,3,3,3,4,4,4,5,5,5,6,6,6,7,7,7,
0,0,0,1,1,1,2,2,2,3,3,3,4,4,4,5,5,5,6,6,6,7,7,7,
0,0,0,1,1,1,2,2,2,3,3,3,4,4,4,5,5,5,6,6,6,7,7,7,
0,0,0,1,1,1,2,2,2,3,3,3,4,4,4,5,5,5,6,6,6,7,7,7,
0,0,0,1,1,1,2,2,2,3,3,3,4,4,4,5,5,5,6,6,6,7,7,7};
 
MemoryImageSource mis = new MemoryImageSource(
24,10,  // width, height of image
icm,// ColorModel
imageBits, // bits of image
0, // offset
24);// scansize
image = createImage(mis);//How to create the image ????????????
try {
      FileOutputStream fos = new FileOutputStream("E:\\chart3.png");                
      ImageIO.write(image, "png", fos);// How to reserve the image???????      
      fos.close();
    } catch(Exception e) {
      System.out.println(e);
    }
 
}
}    

[Ulf Dittmer]

Moved to the AWT/Swing/GUI forum.