Here you can find the source of scaleImage(Image sourceImage, int width, int height)
public static BufferedImage scaleImage(Image sourceImage, int width, int height)
//package com.java2s; /**/* www . java2 s .com*/ * aTunes 1.6.0 * Copyright (C) 2006-2007 Alex Aranda (fleax) alex.aranda@gmail.com * * http://www.atunes.org * http://sourceforge.net/projects/atunes * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ import java.awt.Color; import java.awt.Graphics2D; import java.awt.Image; import java.awt.Toolkit; import java.awt.image.BufferedImage; import java.awt.image.FilteredImageSource; import java.awt.image.ImageFilter; import java.awt.image.ImageProducer; import java.awt.image.ReplicateScaleFilter; import javax.swing.ImageIcon; public class Main { public static BufferedImage scaleImage(Image sourceImage, int width, int height) { if (sourceImage == null) return null; ImageFilter filter = new ReplicateScaleFilter(width, height); ImageProducer producer = new FilteredImageSource(sourceImage.getSource(), filter); Image resizedImage = Toolkit.getDefaultToolkit().createImage(producer); return toBufferedImage(resizedImage); } private static BufferedImage toBufferedImage(Image image) { BufferedImage bufferedImage; try { image = new ImageIcon(image).getImage(); bufferedImage = new BufferedImage(image.getWidth(null), image.getHeight(null), BufferedImage.TYPE_INT_RGB); Graphics2D g = bufferedImage.createGraphics(); g.setColor(Color.white); g.fillRect(0, 0, image.getWidth(null), image.getHeight(null)); g.drawImage(image, 0, 0, null); g.dispose(); } catch (IllegalArgumentException e) { return null; } return bufferedImage; } }