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copied!<p>The problem must lie in your <code>resizeImage</code> method. I have no issue with your code:</p> <pre><code>import java.awt.Image; import java.awt.image.BufferedImage; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.net.MalformedURLException; import java.net.URL; import javax.imageio.ImageIO; import javax.swing.ImageIcon; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.SwingUtilities; public class TestImageResize { protected void initUI() throws MalformedURLException, IOException { final JFrame frame = new JFrame(TestImageResize.class.getSimpleName()); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); BufferedImage bi = ImageIO.read(new URL("http://noupe.com/img/wallpaper-4.jpg")); File file = new File(System.getProperty("user.home"), "test.jpg"); FileOutputStream fos = new FileOutputStream(file); Image image = bi.getScaledInstance(100, -1, Image.SCALE_SMOOTH); BufferedImage bsi = new BufferedImage(image.getWidth(null), image.getHeight(null), BufferedImage.TYPE_INT_RGB); bsi.getGraphics().drawImage(image, 0, 0, null); ImageIO.write(bsi, "jpg", fos); JPanel panel = new JPanel(); JLabel label = new JLabel(new ImageIcon(file.getAbsolutePath())); panel.add(label); frame.add(panel); frame.pack(); frame.setVisible(true); } public static void main(String[] args) { SwingUtilities.invokeLater(new Runnable() { @Override public void run() { try { new TestImageResize().initUI(); } catch (MalformedURLException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } }); } } </code></pre> <p>Result scaled image displayed in JFrame: <img src="https://i.stack.imgur.com/P7xFc.png" alt="Result scaled image"></p> <p>Result scaled image (displayed by your browser): <img src="https://i.stack.imgur.com/NgHQy.jpg" alt="Result image uploaded from disk"></p> <p>Original image: <img src="https://i.stack.imgur.com/tdI9n.jpg" alt="Original image"></p>

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