001/** 002 * Copyright (c) 2011, The University of Southampton and the individual contributors. 003 * All rights reserved. 004 * 005 * Redistribution and use in source and binary forms, with or without modification, 006 * are permitted provided that the following conditions are met: 007 * 008 * * Redistributions of source code must retain the above copyright notice, 009 * this list of conditions and the following disclaimer. 010 * 011 * * Redistributions in binary form must reproduce the above copyright notice, 012 * this list of conditions and the following disclaimer in the documentation 013 * and/or other materials provided with the distribution. 014 * 015 * * Neither the name of the University of Southampton nor the names of its 016 * contributors may be used to endorse or promote products derived from this 017 * software without specific prior written permission. 018 * 019 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 020 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 021 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 022 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR 023 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 024 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 025 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 026 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 027 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 028 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 029 */ 030/** 031 * 032 */ 033package org.openimaj.examples.image.drawing; 034 035import java.awt.Font; 036import java.io.IOException; 037import java.net.URL; 038 039import org.openimaj.image.DisplayUtilities; 040import org.openimaj.image.FImage; 041import org.openimaj.image.ImageUtilities; 042import org.openimaj.image.MBFImage; 043import org.openimaj.image.typography.general.GeneralFont; 044 045/** 046 * Example showing alpha composition of text on an image. 047 * 048 * @author David Dupplaw (dpd@ecs.soton.ac.uk) 049 * @created 20 Jul 2012 050 * @version $Author$, $Revision$, $Date$ 051 */ 052public class AlphaCompositionExample 053{ 054 /** 055 * Main method 056 * 057 * @param args 058 * ignored 059 * @throws IOException 060 * if image can't be loaded 061 */ 062 public static void main(final String[] args) throws IOException 063 { 064 final URL imgurl = new URL("http://www.sableandhogg-gallery.co.uk/shop/images/autumn%20landscape,%20beacons.jpg"); 065 066 // ------------------------------------------------------------------ 067 // FImage test 068 // ------------------------------------------------------------------ 069 final FImage fi1 = ImageUtilities.readF(imgurl); 070 final FImage fi2 = new FImage(300, 100); 071 fi2.drawText("HELLO", 0, 35, new GeneralFont("Arial", Font.BOLD), 48); 072 073 final FImage alpha = fi2.clone().multiplyInplace(0.5f); 074 fi1.overlayInplace(fi2, alpha, 200, 200); 075 076 DisplayUtilities.display(fi1, "Composite"); 077 078 // ------------------------------------------------------------------ 079 // MBFImage test 080 // ------------------------------------------------------------------ 081 final MBFImage i1 = ImageUtilities.readMBF(imgurl); 082 final MBFImage i2 = new MBFImage(300, 100, 3); 083 i2.drawText("HELLO", 0, 35, new GeneralFont("Arial", Font.BOLD), 48); 084 i2.addBand(alpha); 085 i1.overlayInplace(i2, 200, 200); 086 DisplayUtilities.display(i1, "Multiband Composite"); 087 088 final MBFImage i1b = ImageUtilities.readMBF(imgurl); 089 i1b.drawImage(i2, 200, 200); 090 DisplayUtilities.display(i1b, "Multiband Composite"); 091 } 092}