誤差調整在Java

Question

圖像時，我想問一下您的幫助與Java SE解決以下問題

我正在開發軟件，並使用Java的圖像縮放庫，在網址：

https://code.google.com/p/java-image-scaling/

我正在調整6400x4800大小爲47 MB​​的照片。

如果我在Netbeans內運行程序，調整大小是成功執行的。 如果我運行JAR開始DOS調整成功也會發生。 如果我在Windows中運行JAR文件資源管理器，則圖像不會調整大小，程序將永久停止。不產生任何異常

的問題是在代碼行（當.JAR運行在Windows上）：

BufferedImage的重新調整= resampleOp.filter（SRC，NULL）;

我認爲Windows鎖定的調整大小是因爲圖像大小太大或太重，或需要很長時間才能運行此大小調整。

如果調整後的圖像較小，則不會發生Windows錯誤。我做了這個測試

如何解決Windows中的這個問題？

有沒有解決方案？

非常感謝

Answer 1

似乎只是正常工作對我來說;縮放圖像7680x4800 @ 23.3mb JPG。我遇到的唯一問題是，從Windows資源管理器雙擊時，它將圖像放入C:\Windows\System32。您可能會考慮popuping了輸出文件的完整（CanonicalPath）一JOptionPane ...

import com.mortennobel.imagescaling.ProgressListener; 
import com.mortennobel.imagescaling.ResampleOp; 
import java.awt.EventQueue; 
import java.awt.image.BufferedImage; 
import java.io.File; 
import java.io.IOException; 
import java.util.List; 
import java.util.concurrent.ExecutionException; 
import javax.imageio.ImageIO; 
import javax.swing.JFrame; 
import javax.swing.JLabel; 
import javax.swing.JOptionPane; 
import javax.swing.ProgressMonitor; 
import javax.swing.SwingWorker; 
import javax.swing.UIManager; 
import javax.swing.UnsupportedLookAndFeelException; 
import javax.swing.border.EmptyBorder; 

public class Test { 

    public static void main(String[] args) { 
     new Test(); 
    } 

    protected JLabel message; 

    public Test() { 
     EventQueue.invokeLater(new Runnable() { 
      @Override 
      public void run() { 
       try { 
        UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); 
       } catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) { 
        ex.printStackTrace(); 
       } 

       message = new JLabel("Rescampling, wait for it..."); 
       message.setHorizontalAlignment(JLabel.CENTER); 
       message.setBorder(new EmptyBorder(10, 10, 10, 10)); 

       JFrame frame = new JFrame("Testing"); 
       frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
       frame.add(message); 
       frame.pack(); 
       frame.setLocationRelativeTo(null); 
       frame.setVisible(true); 

       ResampleWorker worker = new ResampleWorker(); 
       worker.execute(); 
      } 
     }); 
    } 

    public class ResampleWorker extends SwingWorker<String, String> { 

     @Override 
     protected String doInBackground() throws Exception { 
      ProgressMonitor pm = new ProgressMonitor(null, "Scaling", "Please wait...", 0, 100); 
      File source = new File("C:\\Users\\shane\\Downloads\\1713601.jpg"); 
      try { 
       System.out.println("Reading..."); 
       publish("Reading source image..."); 
       BufferedImage img = ImageIO.read(source); 

       int toWidth = img.getWidth() * 10; 
       int toHeight = img.getHeight()* 10; 

       System.out.println("From..." + (img.getWidth()) + "x" + (img.getHeight())); 
       System.out.println("to..." + toWidth + "x" + toHeight); 
       publish("Resample..." + toWidth + "x" + toHeight); 
       ResampleOp op = new ResampleOp(toWidth, toHeight); 
       Thread.yield(); 
       op.addProgressListener(new ProgressListener() { 
        public void notifyProgress(float fraction) { 
         int p = (int) (fraction * 100); 
         pm.setProgress(p); 
//      System.out.println(p); 
        } 
       }); 
       BufferedImage scaled = op.filter(img, null); 
       pm.close(); 
//    File dest = new File("scaled.jpg"); 
//    ImageIO.write(scaled, "jpg", dest); 
//    JTextField field = new JTextField(dest.getCanonicalPath()); 
//    JOptionPane.showMessageDialog(null, field); 
      } catch (IOException ex) { 
       JOptionPane.showMessageDialog(null, "Failed to load - " + ex.getMessage()); 
      } 
      publish("Done..."); 
      return null; 
     } 

     @Override 
     protected void process(List<String> chunks) { 
      message.setText(chunks.get(chunks.size() - 1)); 
      message.revalidate(); 
      message.repaint(); 
     } 

     @Override 
     protected void done() { 
      try { 
       get(); 
       JOptionPane.showMessageDialog(null, "All done"); 
      } catch (InterruptedException | ExecutionException ex) { 
       ex.printStackTrace(); 
       JOptionPane.showMessageDialog(null, "Error " + ex.getMessage()); 
      } 
      System.exit(0); 
     } 


    } 

} 

具有1920×1200的圖像還測試，擴展到7680x4800。