Creating Thumbnails

Im creating a swf editor in flex and the app loads in the
available images from a directory where the user can add to a
timeline, which will then save to a db to be loaded into a
slideshow. My problem is that Im making the image library, so i
repeat an Image component and set the width and height. It works
fine, however, the image DOES resize, but it causes huge spacing
between each Image because each area is still occupying the size of
the original image size. So if the original image is 100 x 100, and
in my image components(using a repeater) I say 50x50, it causes a
50px gap between images. Its like the component itself does NOT
resize, but the image DOES..
Anyone know a way around this?

To anyone who may help;
I have created a jsp having the following statement:
<im:convertImage sourceFile="D:/apache/jakarta-tomcat-4.1.12/webapps/jspchart/images/struts-power.gif"
width="50"
keepRatio="true"/>
However I get 'org.apache.jasper.JasperException: ij/io/JpegEncoder' error. How can I solve this problem.
Besides, how do I display the converted image to be displayed upon successful convertion within the same page. Is there any example available?

Similar Messages

PSE unable to create thumbnails after Album Starter removed

My sister accepted the upgrade to Adobe Reader 8.0 and said Photoshop Album Starter was automatically loaded on her computer with that upgrade. When she had difficulty working with it, we found some instructions for unloading it, which she did. However, then her problems "really" began. Several pictures on her Desktop were renamed with the PDF file extension, and their thumbnails were totally black. Her "Pix" folder on her Desktop and all the pictures she had in it, plus other pictures stored on her Desktop, disappeared into her Recycle Bin. I restored these files and the folder back to her Desktop, but many of these also had the black thumbnails, or black thumbnails with a thin stripe of colors mixed in with the black across the top. We could still open the pictures, which was a blessing, at least.
However, things became worse as we discovered that ALL new files created with Photoshop Elements (she has both 3.0 and 1.0 and both responded the same way) will no longer create thumbnails. I opened one of the corrupted-thumbnail photos and copied the layer into a new Photoshop Elements document and saved the file with a new filename and a PSD extension thinking that would give us back a file with a thumbnail. Wrong. Still got a black thumbnail. Tried saving as a JPG; still no go. I then selected New and created a totally new document. Same result; no thumbnail. So I created new documents in her Corel Painter IX and Microsoft Paint to see if this was just an "Adobe" thing, and these other programs had no problem creating normal thumbnails with saved documents. So, it's obviously just an Adobe thing.
My only thought at this point is that unloading Adobe Album also deleted or corrupted a shared Adobe file that allows Adobe products to create thumbnails. I suggested that she try reloading her Photoshop Elements programs to see if that brings back the ability to create thumbnails.
Sorry for the long background, but does anyone out there know how to get Photoshop Elements to start creating thumbnails again after getting rid of Album? I'd be ever so grateful if you could help us out!
Marilyn Lee

Hey, Marilyn, I found an answer! Well, this doesn't "fix" the problem, but it does allow you to work around it. There is a program (shareware) called "Thumbnail View," and you can find it at the address below.
http://www.seriema.net/thumbview/index.php...e=download_lite
It worked for me, and my computer's not very new. I can now see PSD thumbnails where before there was just a little icon. Best of luck.
B.

What is the fastest way to create thumbnails in CS6?

Hi All...
I wanted to know if there is a certain way you can take larger images and have them shrink down to a thumbnail size in an automated fashion? Instead of having to load each image and change the dimensions and export the image as a thumbnail? I'm using Web Premium CS6 and also have Lightroom 4. There must be a less tedious method to create a small size and a large size image...
Any thoughts?

You can do this easily using Actions and Batching in Photoshop CS6.
Here are two video tutorials on how to do this in CS6, specifically for creating thumbnails; using actions and batching actions. The guys is a little long-winded but is very comprehensive.
And here's an article on how to do the same thing. It's from 2007 but explains the process nicely.

What is the best (easiest) way to create thumbnails?

From (image) files selected via JFileChooser, what is the best way to create thumbnails so they can be immediately displayed?

package projects.web;
import javax.swing.*;
public class UploadApplet extends JApplet{
     public void displayGUI(){
          AppletGUI createGUI = new AppletGUI(getRootPane());
     public void init(){
          try{
               SwingUtilities.invokeAndWait(new Runnable(){
                    public void run(){
                         displayGUI();
          } catch (Exception e){
               e.printStackTrace();
} // end UploadApplet class
package projects.web;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.border.*;
import javax.swing.text.*;
import java.util.*;
import java.io.*;
public class AppletGUI{
     // JButtons
     JButton addButton = new JButton("Add");
     // JPanels
     JPanel containerPanel = new JPanel();
     JPanel optionsPanel = new JPanel();
     JPanel thumbnailPanel = new JPanel();
     // JScrollPane
     JScrollPane thumbnailScroll;
     public AppletGUI(JRootPane topContainer){
          // Add actionListener
          addButton.addActionListener(new ButtonHandler());
          // Set border layout
          containerPanel.setLayout(new BorderLayout());
          // Add buttons to target panels
          optionsPanel.add(addButton);
          // Set size and color of thumbnail panel
          thumbnailPanel.setPreferredSize(new Dimension (600,500));
          thumbnailPanel.setBackground(Color.white);
          thumbnailPanel.setBorder(new LineBorder(Color.black));
          // Add thumbnail panel to scrollpane
          thumbnailScroll = new JScrollPane(thumbnailPanel);
          // Set background color of scrollPane
          thumbnailScroll.setBackground(Color.white);
          // Add subpanels to containerPanel
          containerPanel.add(optionsPanel, BorderLayout.NORTH);
          containerPanel.add(thumbnailScroll, BorderLayout.CENTER);
          // Add containerPanel to rootPane's contentPane
          topContainer.getContentPane().add(containerPanel);
     } // end constructor
     class ButtonHandler implements ActionListener{
          public void actionPerformed(ActionEvent e){
               new FileBrowser();
          } // end actionPerformed method
     } // end inner class ActionHandler
} // end AppletGUI class
package projects.web;
import java.awt.*;
import java.io.*;
import javax.swing.*;
import javax.swing.filechooser.*;
import javax.imageio.*;
import java.util.*;
public class FileBrowser{
     JFileChooser fileChooser = new JFileChooser();
     int fileChooserOption;
     LinkedList<File> selectedFilesList = new LinkedList<File>();
     LinkedList<String> fileNames = new LinkedList<String>();
     public FileBrowser(){
          fileChooser.setFileSelectionMode(JFileChooser.FILES_ONLY);
          fileChooser.setMultiSelectionEnabled(true);
          fileChooserOption = fileChooser.showOpenDialog(null);
          if (fileChooserOption == JFileChooser.APPROVE_OPTION){
          for (File selectedFile : fileChooser.getSelectedFiles()){
                    selectedFilesList.add(selectedFile);
                    fileNames.add(selectedFile.getName());
          } // end enhanced for loop
          } // end if
     } // end constructor
} // end class FileBrowser

Create Thumbnail Images

Hello, I currently use Automator on Mac OS 10.4 Tiger. I most often use this program to create thumbnail images for easy web upload. However, I plan to upgrade my operating system to Leopard soon, and I was wondering, will my Automator workflows that I've created in Tiger work on the Leopard OS? If not, is their an equivalent automation on Leopard that will output thumbnail images?

without knowing specifics it's hard to say anything definite but leopard automator includes everything Tiger automator had and a whole lot more. the action to create thumbnails is certainly present. you might have to remake the workflow from scratch but it will certainly work.

How to create thumbnail images on the fly from JSP or servlet?

Hi all,
Iam new to this forum. I need a solution for the problem iam facing in building my site. Ihave groups and briefcase section in my site. I allow users to upload files and pictures.
When they upload pictures i need to create thumbnail for them on the fly.
Is there any taglibs or java source to do this from JSP or servlets.
It would be very greatful if i can get an early answer.
Please let me know if there is any other forum where i can get better answer, if not here?
thnx.

Here is how you can create dynamic images:
http://developer.java.sun.com/developer/JDCTechTips/2001/tt0821.html#tip2
However, if you want to create gifs/jpegs and save them to the disk it depends from where you want to create the images. It is different if you are creating from another image or just drawing one from scratch etc.. But in the end you will probably need to use one of the imageencoder classes and write the result to the disk with the file io classes.

Creating Thumbnail Images

Anyone know how to create thumbnail images on the fly?

First google:
http://www.google.co.uk/search?hl=en&q=java+create+thumbnail&btnG=Google+Search&meta=
Then pick the first link:
http://schmidt.devlib.org/java/save-jpeg-thumbnail.html

Creating thumbnail images and storing it as gif or jpg

Hi all,
Iam new to this forum. I need a solution for the problem iam facing in building my site. I have groups and briefcase section in my site. I allow users to upload files and pictures.
When they upload pictures i need to create thumbnail for them and store them as gif or jpeg.
It would be very greatful if i can get an early answer.
Please let me know if there is any other forum where i can get better answer, if not here?
thnx

I found the following searching through the forum, under jpeg or thumbnail, a while back -- maybe you can use it:
import java.awt.Image;
import java.awt.Graphics2D;
import java.awt.geom.AffineTransform;
import java.awt.image.BufferedImage;
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;
class Thumbnail {
public static void main(String[] args) {
createThumbnail(args[0], args[1], Integer.parseInt(args[2]));
* Reads an image in a file and creates a thumbnail in another file.
* @param orig The name of image file.
* @param thumb The name of thumbnail file. Will be created if necessary.
* @param maxDim The width and height of the thumbnail must
* be maxDim pixels or less.
public static void createThumbnail(String orig, String thumb, int maxDim) {
try {
// Get the image from a file.
Image inImage = new ImageIcon(orig).getImage();
// Determine the scale.
double scale = (double)maxDim/(double)inImage.getHeight(null);
if (inImage.getWidth(null) > inImage.getHeight(null)) {
scale = (double)maxDim/(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);
// Paint image.
Graphics2D g2d = outImage.createGraphics();
g2d.drawImage(inImage, tx, null);
g2d.dispose();
// JPEG-encode the image and write to file.
OutputStream os = new FileOutputStream(thumb);
JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(os);
encoder.encode(outImage);
os.close();
} catch (IOException e) {
e.printStackTrace();
System.exit(0);
V.V.

Trying to add album from iphoto into idvd slideshow. Not all photos are loading. Message "creating thumbnail images...(31 remaining). Been there a long time. What is wrong?

trying to add album from iphoto into idvd slideshow. Not all photos are loading. Message "creating thumbnail images...(31 remaining). Been there a long time. What is wrong?

Open your iPhoto Library, go to that particular album and verify that you can view the full sized version of each image by double clicking on them. Report back with the results.
OT

IDVD won't create thumbnail images in slide shows

In a slide show, the window that used to show the photos in a slide show no longer renders thumbnails in the list or grid views. The status at the top of the window just sits there and spins forever, with the text "Creating thumbnail images...." Anyone know of a workaround?

Neither of these "fixes" has changed anything. I also cleared my cache, ran a diagnostic check, and a virus/trojan scan! Either way, firefox 4 is just not working up to my needs! Should, or can I go back to 3.6?

Import Images into slide show - Creating Thumbnail images -Hang

I am using iDVD 7. I imported my images into a slideshow. The pictures were not in iPhoto but just a folder that I created and edited in Photoshop. Once I import the images, the window shows all the file names as expected but all the Image Thumbnails are blank and the top of the window there is a message "+Creating thumbnail images... (32 remaining)+" with a spinning wheel next to the message. This message stays there forever. The 32 is the number of images in the slideshow. I can do most things in iDVD while this is going on, but I cannot add the audio I want.
What is causing this and can I get it to stop?

To add to this I decided to remove the slideshow and now import the pictures from iPhoto. I can only get ride of the message by closing iDVD down. When I relaunch iDVD the message is gone. When I now import the pictures from iPhoto the same thing happens where it hangs on creating thumbnail images.

Create Thumbnail Image in JSP

I have JSP a page, were I want to show Thumbnail Image from specified path. The specified path contain one or more file. If anybody have the code or reference for doing this please replay. (For one image will also the helpfule for me)
Thank You

The following is what I use to create thumbnail images. It uses struts, is a bit of a haste work but never failed in creating thousands of thumbnails. I'd be glad if you suggest improvement.
import java.io.*;
import java.text.*;
import java.util.*;
import org.apache.struts.upload.FormFile;
import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.image.BufferedImage;
import org.apache.log4j.Logger;
* @author Niklas
public class ClassifiedImage {
    Logger log = Logger.getLogger(this.getClass());
    /** Creates a new instance of ClassifiedImage */
    public ClassifiedImage() {
    public void generateImage(FormFile file, String outputFilename, String outputthumbFilename) {
        try {
            String type = file.getContentType();
            String name = file.getFileName();
            int size = file.getFileSize();
            byte[] data = file.getFileData();
            if (data != null && name.length() > 0) {
                ByteArrayInputStream bis = new ByteArrayInputStream(data);
                BufferedImage bi = ImageIO.read(bis);
                int width = bi.getWidth();
                int height = bi.getHeight();
                Image thumb = null;
                if (width > 600 || height > 600) {
                    Image scaledimage = null;
                    if (width > 600) {
                        scaledimage = bi.getScaledInstance(600, -1, Image.SCALE_SMOOTH);
                        thumb = bi.getScaledInstance(80, -1, Image.SCALE_SMOOTH);
                        BufferedImage scaledBuffImage = StrutsUploadAction.toBufferedImage(scaledimage);
                        BufferedImage thumbBuffImage = StrutsUploadAction.toBufferedImage(thumb);
                        int newWidth = scaledBuffImage.getWidth();
                        int newHeight = scaledBuffImage.getHeight();
                        int thumbBuffImagenewWidth = thumbBuffImage.getWidth();
                        int thumbBuffImagenewHeight = thumbBuffImage.getHeight();
                        if (thumbBuffImagenewHeight > 60) {
                            thumb = thumbBuffImage.getScaledInstance(-1, 60, Image.SCALE_SMOOTH);
                        if (newHeight > 600) {
                            scaledimage = scaledBuffImage.getScaledInstance(-1, 600, Image.SCALE_SMOOTH);
                        BufferedImage scaledthumbBuffImage = StrutsUploadAction.toBufferedImage(thumb);
                        BufferedImage scaledBuffImage2 = StrutsUploadAction.toBufferedImage(scaledimage);
                        int newWidth2 = scaledBuffImage2.getWidth();
                        int scaledNewHeight = scaledBuffImage2.getHeight();
                        String formatName = "jpg"; // desired format
                        File outputFile = new File(outputFilename);
                        File outputthumbfile = new File(outputthumbFilename);
                        if (width > 600 || newHeight > 600) {
                            boolean writerExists = ImageIO.write(scaledBuffImage2, formatName, outputFile);
                            boolean writerthumbExists = ImageIO.write(scaledthumbBuffImage, formatName, outputthumbfile);
                    } else if (height > 600) {
                        Image scaledimage2 = bi.getScaledInstance(-1, 600, Image.SCALE_SMOOTH);
                        thumb = bi.getScaledInstance(-1, 60, Image.SCALE_SMOOTH);
                        BufferedImage scaledBuffImage2 = StrutsUploadAction.toBufferedImage(scaledimage2);
                        int newWidth2 = scaledBuffImage2.getWidth();
                        int newHeight2 = scaledBuffImage2.getHeight();
                        BufferedImage scaledthumbBuffImage2 = StrutsUploadAction.toBufferedImage(thumb);
                        int newthumbWidth2 = scaledthumbBuffImage2.getWidth();
                        int newthumbHeight2 = scaledthumbBuffImage2.getHeight();
                        if (newWidth2 > 600) {
                            scaledimage2 = scaledBuffImage2.getScaledInstance(600, -1, Image.SCALE_SMOOTH);
                        if (newthumbWidth2 > 80) {
                            thumb = scaledthumbBuffImage2.getScaledInstance(80, -1, Image.SCALE_SMOOTH);
                        BufferedImage ndscaledBuffImage2 = StrutsUploadAction.toBufferedImage(scaledimage2);
                        BufferedImage ndscaledthumbBuffImage2 = StrutsUploadAction.toBufferedImage(thumb);
                        int n_newWidth2 = ndscaledBuffImage2.getWidth();
                        int n_newHeight2 = ndscaledBuffImage2.getHeight();
                        String formatName2 = "jpg"; // desired format
                        File outputFile2 = new File(outputFilename);
                        File outputfile3 = new File(outputthumbFilename);
                        if (height > 600 || newHeight2 > 600) {
                            boolean writerExists2 = ImageIO.write(ndscaledBuffImage2, formatName2, outputFile2);
                            boolean writerExists3 = ImageIO.write(ndscaledthumbBuffImage2, formatName2, outputfile3);
                } else {
                    FileOutputStream fileOut = new FileOutputStream(outputFilename);
                    fileOut.write(data);
                    fileOut.flush();
                    fileOut.close();
                    BufferedImage b = null;
                    ByteArrayInputStream bi2 = new ByteArrayInputStream(data);
                    BufferedImage bufi2 = ImageIO.read(bi2);
                    int width2 = bi.getWidth();
                    int height2 = bi.getHeight();
                    Image thumbnail2 = null;
                    if (height2 > width2) {
                        thumb = bufi2.getScaledInstance(-1, 60, Image.SCALE_SMOOTH);
                        BufferedImage scaledBuffImagethumb = StrutsUploadAction.toBufferedImage(thumb);
                        int newWidth7 = scaledBuffImagethumb.getWidth();
                        int newHeight7 = scaledBuffImagethumb.getHeight();
                        if (newWidth7 > 80) {
                            thumb = scaledBuffImagethumb.getScaledInstance(80, -1, Image.SCALE_SMOOTH);
                        b = StrutsUploadAction.toBufferedImage(thumb);
                    } else {
                        thumb = bufi2.getScaledInstance(80, -1, Image.SCALE_SMOOTH);
                        BufferedImage scaledthumb = StrutsUploadAction.toBufferedImage(thumb);
                        int scaledthumbwidth = scaledthumb.getWidth();
                        int scaledthumbheight = scaledthumb.getHeight();
                        if (scaledthumbheight > 60) {
                            thumb = scaledthumb.getScaledInstance(-1, 60, Image.SCALE_SMOOTH);
                        b = StrutsUploadAction.toBufferedImage(thumb);
                    File f = new File(outputthumbFilename);
                    boolean bo = ImageIO.write(b, "jpg", f);
        } catch (Exception e) {
            log.error(e.getMessage(), e);
}And the helper method:
// This method returns a buffered image with the contents of an image
    public static BufferedImage toBufferedImage(Image image) {
        if(image instanceof BufferedImage) {
            return (BufferedImage)image;
        // This code ensures that all the pixels in the image are loaded
        image = new ImageIcon(image).getImage();
        // Determine if the image has transparent pixels; for this method's
        // implementation, see e661 Determining If an Image Has Transparent Pixels
        boolean hasAlpha = false;
        // Create a buffered image with a format that's compatible with the screen
        BufferedImage bimage = null;
        GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
        try {
            // Determine the type of transparency of the new buffered image
            int transparency = Transparency.OPAQUE;
            if(hasAlpha) {
                transparency = Transparency.BITMASK;
            // Create the buffered image
            GraphicsDevice gs = ge.getDefaultScreenDevice();
            GraphicsConfiguration gc = gs.getDefaultConfiguration();
            bimage = gc.createCompatibleImage(image.getWidth(null), image.getHeight(null), transparency);
        } catch(HeadlessException e) {
            // The system does not have a screen
        if(bimage == null) {
            // Create a buffered image using the default color model
            int type = BufferedImage.TYPE_INT_RGB;
            if(hasAlpha) {
                type = BufferedImage.TYPE_INT_ARGB;
            bimage = new BufferedImage(image.getWidth(null), image.getHeight(null), type);
        // Copy image to buffered image
        Graphics g = bimage.createGraphics();
        // Paint the image onto the buffered image
        g.drawImage(image, 0, 0, null);
        g.dispose();
        return bimage;
    }

Adobe Reader XI (11.0.08) doesn't create thumbnail (bitmap) using Microsoft Interface IExtractImage -- Extract on Windows Server 2008 R2, when exe to generate thumbnail is launched from Windows service.

Adobe Reader XI (11.0.08) doesn't create thumbnail (bitmap) using Microsoft Interface IExtractImage --> Extract on Windows Server 2008 R2, when exe to generate thumbnail is launched from Windows service.
But if exe is launched as standalone, then interface IExtractImage --> Extract, gives Bitmap to generate thumbnail of PDF document.
Above problem occurs only for PDF documents, if we tried same with other software like CAD -CATIA it works without any problem.
Is there any security concerns form PDF side, which doesn't allow to generate Bitmaps, if exe to generate it is launched form Windows service.

It might be deliberate, Acrobat and Reader software is not intended to run in a service environment.

What photoshop product creates thumbnails?

What product do I need to create thumbnails for our web?

Photoshop's batch function is notoriously slow for this kind of work, I found. If you are working on a Windows machine I recommend IrfanView, which has a fast and simple batch command to process large numbers of images into thumbnails. It also has resizing options to resize to a width or height, the long side or the short side, and so on. Irfanview batch command can also perform most common batch tasks, such as adding canvas, auto cropping, add an overlay text and/or watermark, auto adjust the colours, and so on.
It is many, many times faster than Photoshop's batch processing and much more reliable in my experience (with Photoshop's batch regularly stopping for no real reason).
http://www.irfanview.com/
And best of all: it's free!

Create Thumbnails from photos in iPhoto11

I have tried to activate photo stream in iOS 5 however, my photos in iPhoto11 are too large to upload and take too long.
Is there a way to create thumbnails of my photos that I could upload to photo stream.
Thanks

It's a nuisance, but thanks for your advice.
I am begining to have concerns about space on my Mac due to iphoto!
I can move the library to my Nas server. It is then my intention to set up a new iphoto library on my Mac. If I deselct the "copy items to the iphoto library in preference" will this affect me in the future if I choose to merge the iphoto libraries in the future?
Any advice would be appreciated.
Thanks
Keith

Auto create thumbnail from pdf

Hi all, can anyone assist with writing a script to automatically create thumbnails of a saved PDF and then move that thumbnail onto a NAS SMB shared volume?
thanks
KL

Take advantage of Automator, and create a workflow that prompts you for a PDF, and then generates thumbnail images of that PDF into a Desktop folder. The workflow will overwrite any thumbnail images associated with the PDF, if you rerun it on the same PDF.
Here is the AppleScript to generate the thumbnail(s) from the PDF, and access the first thumbnail. I am not using a Server here, so that is missing from the AppleScript, but should be a Finder move/copy from your thumbnail folder to the server destination address. The applescript can be saved as an Application on your Desktop.
set pdfimage to {}
set workflowpath to "OSXHD:Users:viking:Desktop:pdf2img.workflow"
set qtdworkflowpath to quoted form of (POSIX path of workflowpath)
set command to "/usr/bin/automator " & qtdworkflowpath
set pdfimage to do shell script command
-- get first thumbnail path
set thumbnail to (second paragraph of pdfimage as text)
display dialog thumbnail
Launch Automator, and choose to make a new workflow. Save this workflow to your Desktop, or anywhere you like. For this example, it is sitting on my Desktop. Build your Automator workflow with the following Library actions:
Files and Folders - Ask for Finder Items
PDF - Render PDF Pages as Images
Files and Folders - Move Finder ItemsI created a new folder on the Desktop to place the generated thumbnails
Here is what the Automator actions look like in the finished workflow.

Creating Thumbnails

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