What is the best way to scale images in Java?

Question

I have a web application written in Java (Spring, Hibernate/JPA, Struts2) where users can upload images and store them in the file system. I would like to scale those images

Answer 1

I tried imgscalr comparing to standard Java 1.6 and I cannot say it is better.

What I've tried is

BufferedImage bufferedScaled = Scalr.resize(sourceImage, Method.QUALITY, 8000, height);

and

  Image scaled = sourceImage.getScaledInstance(-1, height, Image.SCALE_SMOOTH);
  BufferedImage bufferedScaled = new BufferedImage(scaled.getWidth(null),  scaled.getHeight(null), BufferedImage.TYPE_INT_RGB);
  bufferedScaled.getGraphics().drawImage(scaled, 0, 0, null);

some 5 minute testing by my eye got impression that second thing (pure Java 1.6) produces better results.