ImageUtil.java Source code

Introduction

Here is the source code for ImageUtil.java

Source

/*
 * ImageUtil.java
 *
 * Created on 15 May 2006, 01:12
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.image.BufferedImage;

/**
 * Provides utility methods for handling images (<tt>java.awt.BufferedImage</tt>
 * )
 * 
 * @author Ian McDonagh
 */
public class ImageUtil {
    /**
     * Creates a scaled copy of the source image.
     * 
     * @param src
     *            source image to be scaled
     * @param width
     *            the width for the new scaled image in pixels
     * @param height
     *            the height for the new scaled image in pixels
     * @return a copy of the source image scaled to <tt>width</tt> x
     *         <tt>height</tt> pixels.
     */
    public static BufferedImage scaleImage(BufferedImage src, int width, int height) {
        Image scaled = src.getScaledInstance(width, height, 0);
        BufferedImage ret = null;
        /*
         * ColorModel cm = src.getColorModel(); if (cm instanceof
         * IndexColorModel) { ret = new BufferedImage( width, height,
         * src.getType(), (IndexColorModel) cm ); } else { ret = new
         * BufferedImage( src.getWidth(), src.getHeight(), src.getType() ); }
         * Graphics2D g = ret.createGraphics(); //clear alpha channel Composite
         * comp = g.getComposite();
         * g.setComposite(AlphaComposite.getInstance(AlphaComposite.CLEAR,
         * 0.0f)); Rectangle2D.Double d = new
         * Rectangle2D.Double(0,0,ret.getWidth(),ret.getHeight()); g.fill(d);
         * g.setComposite(comp);
         */
        ret = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
        Graphics2D g = ret.createGraphics();
        // copy image
        g.drawImage(scaled, 0, 0, null);
        return ret;
    }
}