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JLabel Icon Resize

Posted on 2007-11-19
Medium Priority
Last Modified: 2013-11-23
I have a JPanel in which I placed a JLabel of the same size as the JPanel.  I set the icon property of the JLabel to a jpg image file.  The image file displays, but it is too large, and needs to be resized.

How do I resize the displayed (in the JLabel) icon to be the same height and width as the JLabel?

Possibly, JLabel icons cannot be resized, which would explain why I'm running into a dead end.  If so, would someone tell me the best way to display a picture in a JPanel, sized to the same size as the JPanel?

(As an aside, my IDE is Netbeans.  But, I think this is just a Java question.)
Question by:LarryAndro
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Expert Comment

ID: 20316084
One possible solution is to resize .jpg image with some external editor (for example Paint), and use resized image from Netbeans.

Author Comment

ID: 20316100
Thank you for suggestion to resize the actual image.  I can do that with a batch image editor like IrfanView.  But, since I use the image for several reasons, I would prefer to programmatically resize the image at the time of use.

Hopefully, there is a way...

Accepted Solution

UrosVidojevic earned 1000 total points
ID: 20316265
Method for resizing ImageIcon objects:
Modified from source:

    public ImageIcon resizeImageIcon(ImageIcon imageIcon, double factor) {
        Image image = imageIcon.getImage();
        int width = (int) (factor * image.getWidth(null));
        int height = (int) (factor * image.getHeight(null));
        Image newImage  = image.getScaledInstance(width, height, Image.SCALE_SMOOTH);
        ImageIcon newImageIcon = new ImageIcon(newImage);
        return newImageIcon;


        ImageIcon icon = new ImageIcon("C:\\image.jpg");
        label.setIcon(resizeImageIcon(icon, 0.5));
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Assisted Solution

objects earned 1000 total points
ID: 20317833
this panel will resize the image according to the size of the panel.

Author Comment

ID: 20319513
I'm testing and researching these techniques.  I'll respond shortly.  Thanks for help...

Author Closing Comment

ID: 31410030
Success!  Great suggestions.  (Splitting points.)  And, thank you...

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