JPEG Encoder to GIF

Hi I have this code, it works great except it creates JPEG's and I want to create GIFS...anyone know how????
Cheers
    try {file.createNewFile();} catch (IOException e2) {}
    try
      OutputStream out = new FileOutputStream( file );
      Image image = s.getImage();
      BufferedImage bufImage = (BufferedImage)image;
      JPEGImageEncoder jencoder = JPEGCodec.createJPEGEncoder(out);
      jencoder.encode(bufImage);
      out.flush();
      out.close();
    catch(Exception e)
    }

ImageIO.write( image, "gif" );
or
use PNGs instead.

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Is there a JPEG encoder for j2me, PNG,GIF and BMP encoders are also wanted.

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well, of course ... what did you expect?Hum, I want to do some processing on my pictures, such as rotation, and then save it or send to my friends via MMS. but it's not easy to save the processed pixels to image file, such as JPEG, GIF or PNG.

Problems when jpeg encoding multiple images

Hi, im trying to write a servlet which generates multiple thumbs. However when encoding for the second time i get an error java.io.IOException: reading encoded JPEG Stream.
I can't figure out the problem
import java.sql.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.awt.Image;
import java.awt.Graphics2D;
import java.awt.geom.AffineTransform;
import java.awt.image.BufferedImage;
import javax.swing.ImageIcon;
import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGImageEncoder;
public class Thumbs extends HttpServlet {
private String dbDriver = "com.mysql.jdbc.Driver";
private String dbURL = "jdbc:mysql://localhost/shopper?";
private String userID = "javauser";
private String passwd = "javadude";
private Connection dbConnection;
//Initialize global variables
public void init() throws ServletException {
//Process the HTTP Get request
public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    try{
      String foreignNr = request.getParameterValues("p")[0];
      String maxDim = request.getParameterValues("s")[0];
      if (foreignNr != null){
        int foreignID = Integer.parseInt(foreignNr);
        int maxDimension = Integer.parseInt(maxDim);
        response.setContentType("image/jpeg");
        OutputStream out = response.getOutputStream();
        writeThumbnailPictures(out,foreignID,maxDimension);
    } catch (Exception ex){
        log(ex.getMessage());
public void writeThumbnailPictures(OutputStream out,int foreignID,int maxDimension){
    try{
      Class.forName(dbDriver);
      dbConnection = DriverManager.getConnection(dbURL, userID, passwd);
      PreparedStatement pageStatement;
      pageStatement = dbConnection.prepareStatement(
          "select * from pictures where ForeignID = ?");
      pageStatement.setInt(1, foreignID);
      ResultSet recs = pageStatement.executeQuery();
      while (recs.next()) {
        byte[] data = recs.getBytes("Picture");
        if (data != null) {
          Image inImage = new ImageIcon(data).getImage();
          // Determine the scale.
           double scale = (double)maxDimension / (double)inImage.getHeight(null);
           if (inImage.getWidth(null) > inImage.getHeight(null)) {
               scale = (double)maxDimension /(double)inImage.getWidth(null);
           // Determine size of new image.
           // One of them should equal maxDim.
           int scaledW = (int)(scale*inImage.getWidth(null));
           int scaledH = (int)(scale*inImage.getHeight(null));
           // Create an image buffer in
           //which to paint on.
           BufferedImage outImage = new BufferedImage(scaledW, scaledH,
               BufferedImage.TYPE_INT_RGB);
           // Set the scale.
           AffineTransform tx = new AffineTransform();
           // If the image is smaller than
           // the desired image size,
           // don't bother scaling.
           if (scale < 1.0d) {
               tx.scale(scale, scale);
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           Graphics2D g2d = outImage.createGraphics();
           g2d.drawImage(inImage, tx, null);
           g2d.dispose();
           // JPEG-encode the image
           JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
           encoder.encode(outImage);
      out.close();
    catch(Exception ex){
      ex.printStackTrace();
//Clean up resources
public void destroy() {
}

Hi,
I am facing same problem while generating the thumbs. Did you figure out what the problem is? if you have the solution, do post it.
Thanks in advance
Mo

Jpeg encoding

Hi
I wondered if someone could help.
I am working on an app that allows people to manipulate
images and have them passed to the server to be sent or stored. I
have all the basics working here and the jpeg encoded data being
passed to the server etc. All works well.
However, my next hurdle is how to pass multiple encoded files
in what shot? As the user can say have 5 images that they can make
in one session, to create a simple animation. Is there a way of
packaging multiple bytearrays up and for php to sort them out on
the server?
I avent had much experience with byte arrays so any pointers
would be great.
regards
ade

the jdk library is open source. did you look for the jpeg encoder?
package com.sun.image.codec.jpeg

Problems with JPEG encoding

I'm making photo album on the web. But I have a problem with thumbnails generation. I have read alot about it on this forum (thanks guys) but I have a problem:
Sometimes (but not every time) and independent on the image I've got thumbnail picture that can not be readed neither by IE or Photoshop or another programm. I'm using next encoding sequence:
PEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
com.sun.image.codec.jpeg.JPEGEncodeParam param = encoder.getDefaultJPEGEncodeParam(bufferedImage);
writeParam.setCompressionMode(JPEGImageWriteParam.MODE_EXPLICIT);
param.setQuality(0.7f, true);
encoder.setJPEGEncodeParam(param);
encoder.encode(bufferedImage);
And this code operate in the Servlet enviroment. So, I can not understand what is wrong?
Renat.

Hi Renat.
I may be wrong but I have observed some troubles with JPEG encoding (particularly because of a lack of CPU)... You may have the same trouble... The problem is that I don't how to catch these errors but if someone knows how to, I would be really interested in... I can only catch them when I decode these images thanks to TruncatedFileException and ImageFormatException.
Stephane.

Jpeg Encoding Problem

Hello,
I have an applet that reads a data file and plots a graph. Now i'm having problem converting the graph into a jpg file using a jpeg encoder.
I have the following snippet of code in the end.
File file = new File("c:\\vj\\graph.jpg");
     if (file.exists()) {file.delete();}
     try {file.createNewFile();} catch (IOException eIo) {}
     try
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     Image image = (Image)chart2D.createImage(chart2D.getWidth() ,chart2D.getHeight());
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     chart2D.paint(g);
     BufferedImage bufImage = (BufferedImage)image;
//     JPEGEncodeParam jep = new JPEGEncodeParam();
     JPEGImageEncoder jencoder = JPEGCodec.createJPEGEncoder(out);
     jencoder.encode(bufImage);
     out.flush();
     out.close();
     } catch (IOException e) {}
But when i run the applet it gives me a security exception saying:
java.security.AccessControlException: access denied (java.io.FilePermission c:\vj\graph.jpg read)
How do i fix this problem??
Any help would be appreciated,
Thanks,
Mamtha.

Unfortunately, you can't do file I/O from an applet unless it is a signed applet. See applet security FAQ:
http://java.sun.com/sfaq/
If it's at all feasible, by far the simplest solution is to add a min method and make it an application instead of an applet. If it must be an applet, things get a little more complicated! Here are a couple of possibilities:
1) You could sign your applet. For an example, see:
http://java.sun.com/security/signExample/
2) You can send the file to the server where the applet came from, and then have the server write it to disk. Finally, the client can request the file from the server. For an explanation and example code, see:
http://java.sun.com/docs/books/tutorial/applet/practical/workaround.html

Info abt jpeg Encoder

hi
i'm doing some image processing and i want to save tht processed image in mobile memory.I think to retrieve the processed image after storing needs some encoding format is there any jpeg encoder available or else v've have write our own encoder.
and also is it possible to change the encoder in core java to j2me
thanx in advance

Hi nitin
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Hello, thank you so much for anyone that might be able to help me. If I am in the wrong forum, sorry.. please tell me where I need to go (I'm new here).
I am running a servlet (tomcat 4.01 - JRE 1.4.1) that uploads jpg images and creates thumbnails from them in a headless environment. The images are created without a problem for some amount of time and then all the images created are black (but they are the correct size). I haven't figured out what the trigger is yet. The memory seems to be ok (5 - 20MB left depending on how big the upload is). The only think I can do to make the process work correctly again is to restart the server. I have written out the image to a file before converting it and the image uploads fine... just the resized thumbnail is black. I have seen other issues like this which say to use a MediaTracker but I have 2 questions about that:
1) I don't have a component to use for the MediaTracker because I get a HeadlessException
2) I save the uploaded content into a byte array before converting so, I should have it already, right?
Below is the code I am using and any help would GREATLY appreciated. I thank anyone for taking the time to read this!
import java.awt.Image;
import java.awt.Graphics2D;
import java.awt.geom.AffineTransform;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.OutputStream;
import java.io.FileOutputStream;
import javax.swing.ImageIcon;
import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGImageEncoder;
// this is the image resizine method snippet
public void resizeImage (int maxDim, byte[] imgContent, File outputFile) throws IOException {
     Image inImage = new ImageIcon(imgContent).getImage();
     int width = inImage.getWidth(null);
     int height = inImage.getHeight(null);
     double scale = maxDim / (double) height;
     if (width > height) scale = maxDim / (double) width;
     int scaledWidth = (int)(scale * width);
     int scaledHeight = (int)(scale * height);
     BufferedImage outImage = new BufferedImage(scaledWidth, scaledHeight, BufferedImage.TYPE_INT_RGB);
     AffineTransform tx = new AffineTransform();
     // If the image is smaller than
     //the desired image size,
     // don't bother scaling.
     if (scale < 1.0d) {
          tx.scale(scale, scale);
     // Paint image.
     Graphics2D g2d = outImage.createGraphics();
     g2d.drawImage(inImage, tx, null);
     g2d.dispose();
     // JPEG-encode the image
     //and write to file.
     FileOutputStream os = null;
     try {
          os = new FileOutputStream(outputFile);
          JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(os);
          encoder.encode(outImage);
     finally {
          os.close();
}

Hello, thank you so much for anyone that might be able to help me. If I am in the wrong forum, sorry.. please tell me where I need to go (I'm new here).
I am running a servlet (tomcat 4.01 - JRE 1.4.1) that uploads jpg images and creates thumbnails from them in a headless environment. The images are created without a problem for some amount of time and then all the images created are black (but they are the correct size). I haven't figured out what the trigger is yet. The memory seems to be ok (5 - 20MB left depending on how big the upload is). The only think I can do to make the process work correctly again is to restart the server. I have written out the image to a file before converting it and the image uploads fine... just the resized thumbnail is black. I have seen other issues like this which say to use a MediaTracker but I have 2 questions about that:
1) I don't have a component to use for the MediaTracker because I get a HeadlessException
2) I save the uploaded content into a byte array before converting so, I should have it already, right?
Below is the code I am using and any help would GREATLY appreciated. I thank anyone for taking the time to read this!
import java.awt.Image;
import java.awt.Graphics2D;
import java.awt.geom.AffineTransform;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.OutputStream;
import java.io.FileOutputStream;
import javax.swing.ImageIcon;
import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGImageEncoder;
// this is the image resizine method snippet
public void resizeImage (int maxDim, byte[] imgContent, File outputFile) throws IOException {
     Image inImage = new ImageIcon(imgContent).getImage();
     int width = inImage.getWidth(null);
     int height = inImage.getHeight(null);
     double scale = maxDim / (double) height;
     if (width > height) scale = maxDim / (double) width;
     int scaledWidth = (int)(scale * width);
     int scaledHeight = (int)(scale * height);
     BufferedImage outImage = new BufferedImage(scaledWidth, scaledHeight, BufferedImage.TYPE_INT_RGB);
     AffineTransform tx = new AffineTransform();
     // If the image is smaller than
     //the desired image size,
     // don't bother scaling.
     if (scale < 1.0d) {
          tx.scale(scale, scale);
     // Paint image.
     Graphics2D g2d = outImage.createGraphics();
     g2d.drawImage(inImage, tx, null);
     g2d.dispose();
     // JPEG-encode the image
     //and write to file.
     FileOutputStream os = null;
     try {
          os = new FileOutputStream(outputFile);
          JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(os);
          encoder.encode(outImage);
     finally {
          os.close();
}

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Hi!
I was trying to figure out how can i use the Alchemy JPEG encoder with ImageSnapShot to capture image and encode with Alchemy encoder
If you see the ImageSnapShot function to capture is:
var jpg : JPEGEncoder = new JPEGEncoder();
var imageSnap:ImageSnapshot = ImageSnapshot.captureImage(image, 0, jpg);
I want to capture a BIG screen, using JPEGEncoder its impossible beacose times of encoding.
So, some can anyone that had worked with this tell me if its possible?
Thanks in advance
And excuse about my english =)

I have just put up a tutorial/guide on how to use the Alchemy JPEG encoder in Flash. It's also an example on how to use a progressbar to monitor the encoding. Check out http://last.instinct.se/graphics-and-effects/using-the-fast-asynchronous-alchemy-jpeg-enco der-in-flash/640

Jpeg and animated gif's

Hi. Does anybody know how to put an *.jpeg image and an animated gif
on the front panel of a VI?
I would be greatfull for any help.
Vlad

"Ioan Vlad Dragomir" wrote:
>>Hi. Does anybody know how to put an *.jpeg image and an animated gif >on
the front panel of a VI?>>I would be greatfull for any help.>Vlad
Hi Vlad
Have a look at the ""Example Programs Database ""
Reading from JPEG/PNG/BMP Images into a LabVIEW Picture Control.
http://digital.ni.com/explprog.nsf/75c7cd5de6d387788625663d00558a4c/ab8e1f3913731e208625677d0076acd6?OpenDocument
This VI will give you a good example of how you can display a *.jpeg
Hope that help.
Rejean

Cannot import still image: jpeg/tiff/png/gif/ai/psd

Hello all:
I'm running into a strange error. No matter what size image I try, I cannot seem to import a still image into Adoe Premiere Pro cs4 running on Mac OSX 10.6.2
The error I receive is a "File Import Error: File Video Dimensions width/height too large."
I've tried the following to isolate why Premiere is returning this error:
- importing images at different sizes: 100x200, 1000x2000 etc
- saving the image as different file formats: jpeg, tiff, gif, png etc
- importing it as an illustrator file
- importing it as a Photoshop file
None of that worked. I'm at my wit's end and I can't seem to find anybody that has experienced this error before.

Here are some threads to check:
http://forums.adobe.com/thread/387776
http://forums.adobe.com/thread/480381
http://forums.adobe.com/thread/387156
http://forums.adobe.com/thread/443138
IIRC, the third one is for the Mac, but might be useful info in all.
Good luck,
Hunt
PS - welcome to the forum

JPEG encoder quality problem

my static method is as follow: (copy from here, and i and a setQuality Method)
public class JPEGHandler
     public static void saveJPG(BufferedImage bi,float q,String pathname){
          String s = null;
          //BufferedImage bi = createBufferedImage(img);
          FileOutputStream out = null;
          try     {
               File file = new File(pathname);
               s = file.getName();
               out = new FileOutputStream(file);
          catch (java.io.FileNotFoundException io){
               System.out.println("File Not Found");
          catch (java.io.IOException e){
               System.err.println(e);
               JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
               JPEGEncodeParam param = encoder.getDefaultJPEGEncodeParam(bi);
               param.setQuality(q, true); //Set the quality
          try {
               encoder.encode(bi);
          catch (java.io.IOException io)
               System.out.println("IOException");
          try{
               out.close();
          catch (java.io.IOException io){
               System.out.println("IOException");
          System.out.println("JPEG Saved: " + s);
no matter i assign 0.5 or 1 to the setQuality method, the quailty and the file size of the jpg remain unchange.
also, i have tried to set the second param of setQuailty to true and false, it dosn't help at all !!
Anyone know how to solve it ?

try{
     ByteArrayInputStream in=new ByteArrayInputStream(image_data);
     JPEGImageDecoder decoder =JPEGCodec.createJPEGDecoder(in,params);
     image = decoder.decodeAsBufferedImage();
     in.close();
     }catch (Exception e) {
     System.err.println("Exception "+e + " decoding "+image_name+" as JPEG");
I've just been playing with Java 1.4 (which includes updates Graphics2D) and it fixes a number or errors I had with 1.3
MArk

Jpeg encoding with imageio - pink distortion problem

Hello, I am using the imageio classes to scale down jpg images (for thumbnails) and write them to a file. On most images, everything works perfectly. On some images, however, the resulting thumbnail image has a strange pink coloration to the whole picture. Does anyone have any ideas as to why this would happen? The code I am using is below. I thank anyone that takes the time to read this and hope someone can help.
import java.awt.Graphics2D;
import java.awt.geom.AffineTransform;
import java.awt.image.AffineTransformOp;
import java.awt.image.BufferedImage;
import java.awt.image.IndexColorModel;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import javax.imageio.IIOImage;
import javax.imageio.ImageIO;
import javax.imageio.ImageTypeSpecifier;
import javax.imageio.ImageWriteParam;
import javax.imageio.ImageWriter;
import javax.imageio.plugins.jpeg.JPEGImageWriteParam;
import javax.imageio.stream.ImageOutputStream;
public class ImageResizer
     private static final int THUMBNAIL_MAX = 120;
     private static final int SMALL_MAX = 250;
     private static final int LARGE_MAX = 575;
     private static final int LARGE_THRESHOLD = 425;
     BufferedImage inImage;
     int width;
     int height;
     private static JPEGImageWriteParam params;
     static {
          JPEGImageWriteParam params = new JPEGImageWriteParam(null);
          params.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
          params.setCompressionQuality(0.8f);
          params.setProgressiveMode(ImageWriteParam.MODE_DISABLED);
          params.setDestinationType(
               new ImageTypeSpecifier(IndexColorModel.getRGBdefault(),
               IndexColorModel.getRGBdefault().createCompatibleSampleModel(16,16)));
     public ImageResizer(byte[] image, long id) throws IOException
          inImage = ImageIO.read(new ByteArrayInputStream(image));
          width = inImage.getWidth(null);
          height = inImage.getHeight(null);
     public void makeSmallImage (File outputFile) throws IOException {
          resizeImage(120, outputFile);
     private void resizeImage (int maxDim, File file) throws IOException {
          double scale = maxDim / (double) height;
          if (width > height) scale = maxDim / (double) width;
          int scaledWidth = (int)(scale * width);
          int scaledHeight = (int)(scale * height);
          BufferedImage outImage = new BufferedImage(scaledWidth, scaledHeight, BufferedImage.TYPE_INT_RGB);
          AffineTransform xform = AffineTransform.getScaleInstance(scale, scale);
          AffineTransformOp op = new AffineTransformOp(xform, AffineTransformOp.TYPE_NEAREST_NEIGHBOR);
          // Paint image.
          Graphics2D g2d = outImage.createGraphics();
          g2d.drawImage(inImage, op, 0, 0);
          g2d.dispose();
          // write the image out
          ImageOutputStream ios = null;
          try {
               ios = ImageIO.createImageOutputStream(file);
               ImageWriter writer = (ImageWriter) ImageIO.getImageWritersByFormatName("jpg").next();
               writer.setOutput(ios);
               writer.write(null, new IIOImage(outImage, null, null), params);
               writer.dispose();
          catch (IOException e) {
               System.out.println("cought IOException while writing " +
               file.getPath());
          finally {
               if (null != ios) ios.close();
}

I am having the same problem with jpegs.
The strange thing is that this only happends with the same exact code on OS X, while it never happens on any windows machine.
I have tried using the the ImageIO classes, and a class I got off of this board a while back; however when using this class on an OS X machine, encoding takes a really long time and gives the pink distortion.
import java.awt.*;
import java.awt.image.*;
import java.io.*;
import javax.swing.*;
import com.sun.image.codec.jpeg.*;
import java.awt.event.*;
import java.util.*;
import java.awt.geom.*;
public class ImageUtils {
     private static JPEGImageEncoder encoder = null;
     private static FileOutputStream fileStream = null;
     public static BufferedImage createComponentImage(Component component)
          BufferedImage image = (BufferedImage)component.createImage(component.getWidth(),component.getHeight());
          Graphics graphics = image.getGraphics();
          if(graphics != null) { component.paintAll(graphics); }
          return image;
     public static void encodeImage(BufferedImage image, File file) throws IOException
          fileStream = new FileOutputStream(file);
          JPEGEncodeParam encodeParam = JPEGCodec.getDefaultJPEGEncodeParam(image);
          encoder = JPEGCodec.createJPEGEncoder(fileStream);
          encoder.encode(image,encodeParam);
}use it like this:
File file = new File("ImageTest.jpg");
image = ImageUtils.createComponentImage(imageCanvas);
ImageUtils.encodeImage(image,file);

Series of jpegs to animated gif (or wmv)

Hi
Is there any way to take some 25-50 sequentially numbered jpegs and output either an animated gif or a wmv?
Either in fireworks or any other adobe product?
i dont want to have to drag and drop all 50 images. Something faily automatic would be nice.
Thank you
Jerry C

In Fireworks, choose File > Open. Browse to the folder where the series of images is stored. Press Shift and click on the images to select them. Check the Open as Animation box at the bottom of the Open dialog window, and then click on the Open button. Your series of images are automagically loaded into states, ready to optimise and export as a GIF animation.
Since the images are JPEG's, you might want to experiment with exporting the animation in Flash (SWF) format. To do that, choose File > Save As. In the Save as dialog window, give the file a name. For Save Copy As, choose Adobe Flash SWF. Click on the Options button to open the SWF Export Options dialog window. Once you've finished, choose Save. Ta Da! :-)

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