Java - Bytes to Image & vice versa

package org.configurator.pdfgenerator.utils;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;

import org.apache.xerces.impl.dv.util.Base64;
 
 
public class SimpleConvertImage {
 public static void main(String[] args) throws IOException{
  String dirName="D:\\";
  ByteArrayOutputStream baos=new ByteArrayOutputStream(1000);
  BufferedImage img=ImageIO.read(new File(dirName,"plot.png"));
  ImageIO.write(img, "png", baos);
  baos.flush();
 
  String base64String=Base64.encode(baos.toByteArray());
  baos.close();
 
  byte[] bytearray = Base64.decode(base64String);
 
  BufferedImage imag=ImageIO.read(new ByteArrayInputStream(bytearray));
  ImageIO.write(imag, "png", new File(dirName,"snap.png"));
 }
}

Or Specific Functions

/***
  * Image 2 Byte Array
  * @param imageFile
  * @return
  *   byte[]
  */
 public static byte[] Image2Bytes(String imageFile){
  ByteArrayOutputStream baos=new ByteArrayOutputStream(1000);
  BufferedImage img;
  try {
   img = ImageIO.read(new File(imageFile));
   ImageIO.write(img, "png", baos);
   baos.flush();
   baos.close();
  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
  String base64String=Base64.encode(baos.toByteArray());
  return Base64.decode(base64String);
 }
 
 /****
  * Byte Array to Image
  * @param ImageBytesArray
  * @param filePathName
  * @return
  *   Image File
  */
 public static File Bytes2Image(byte[] ImageBytesArray,String filePathName){
  File imageFile = new File(filePathName);
  try {
   BufferedImage imag=ImageIO.read(new ByteArrayInputStream(ImageBytesArray));
   ImageIO.write(imag, "png", imageFile);
  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
  return imageFile;
 }

Reference:

http://www.programcreek.com/2009/02/java-convert-image-to-byte-array-convert-byte-array-to-image/

http://stackoverflow.com/questions/3211156/how-to-convert-image-to-byte-array-in-java