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.demos.sandbox.image; 034 035import java.io.IOException; 036import java.net.MalformedURLException; 037 038import org.openimaj.image.DisplayUtilities; 039import org.openimaj.image.FImage; 040import org.openimaj.image.ImageUtilities; 041import org.openimaj.image.MBFImage; 042import org.openimaj.image.processing.mask.MatteGenerator; 043import org.openimaj.image.processing.mask.MatteGenerator.MatteType; 044 045/** 046 * 047 * 048 * @author David Dupplaw (dpd@ecs.soton.ac.uk) 049 * @created 31 Jan 2013 050 * @version $Author$, $Revision$, $Date$ 051 */ 052public class MatteGeneratorTest 053{ 054 /** 055 * @param args 056 * @throws IOException 057 * @throws MalformedURLException 058 */ 059 public static void main( final String args[] ) throws MalformedURLException, IOException 060 { 061 final FImage linearMatteBlackTop = new FImage( 400, 400 ); 062 MatteGenerator.generateMatte( linearMatteBlackTop, MatteType.LINEAR_VERTICAL_GRADIENT, true ); 063 DisplayUtilities.display( linearMatteBlackTop, "Linear Matte - Black Top" ); 064 065 final FImage linearMatteWhiteTop = new FImage( 400, 400 ); 066 MatteGenerator.generateMatte( linearMatteWhiteTop, MatteType.LINEAR_VERTICAL_GRADIENT, false ); 067 DisplayUtilities.display( linearMatteWhiteTop, "Linear Matte - White Top" ); 068 069 final FImage linearMatteBlackLeft = new FImage( 400, 400 ); 070 MatteGenerator.generateMatte( linearMatteBlackLeft, MatteType.LINEAR_HORIZONTAL_GRADIENT, true ); 071 DisplayUtilities.display( linearMatteBlackLeft, "Linear Matte - Black Left" ); 072 073 final FImage linearMatteWhiteLeft = new FImage( 400, 400 ); 074 MatteGenerator.generateMatte( linearMatteWhiteLeft, MatteType.LINEAR_HORIZONTAL_GRADIENT, false ); 075 DisplayUtilities.display( linearMatteWhiteLeft, "Linear Matte - White Left" ); 076 077 final FImage radialBlackMiddle = new FImage( 400, 400 ); 078 MatteGenerator.generateMatte( radialBlackMiddle, MatteType.RADIAL_GRADIENT, false ); 079 DisplayUtilities.display( radialBlackMiddle, "Radial Matte - Black Middle" ); 080 081 FImage radialWhiteMiddle = new FImage( 400, 400 ); 082 MatteGenerator.generateMatte( radialWhiteMiddle, MatteType.RADIAL_GRADIENT, true ); 083 DisplayUtilities.display( radialWhiteMiddle, "Radial Matte - White Middle" ); 084 085 for( double angle = Math.PI/4; angle < Math.PI*2; angle+= Math.PI/4 ) 086 { 087 final FImage angledGrad = new FImage( 400, 400 ); 088 MatteGenerator.generateMatte( angledGrad, MatteType.ANGLED_LINEAR_GRADIENT, angle, 200d, 200d ); 089 DisplayUtilities.display( angledGrad, "Angled Gradient - "+Math.floor(angle*57.3)+" degrees" ); 090 } 091 092 // This test should show using the matte generator used to generate image alpha mattes 093 094 // Loads an image, makes a copy and inverts the copy adding an alpha matte to it. 095 // It then plonks the matted image back into the original image, so there should end 096 // up with an image where the inverted version in the centre fades out to the original version. 097 098 // Load an image 099 final String testImage = "/org/openimaj/image/image_for_testing.jpg"; 100 final MBFImage i = ImageUtilities.readMBFAlpha( 101 MatteGeneratorTest.class.getResource( testImage ) ); 102 103 // Clone and invert the image, add an alpha matte using a radial gradient 104 final MBFImage f = i.clone().inverse(); 105 radialWhiteMiddle = new FImage( i.getWidth(), i.getHeight() ); 106 MatteGenerator.generateMatte( radialWhiteMiddle, 107 MatteType.RADIAL_GRADIENT, false ); 108 f.bands.set( 3, radialWhiteMiddle ); 109 110 // Draw the matted image onto the original image 111 i.drawImage( f, 0, 0 ); 112 113 DisplayUtilities.display( i, "Alpha Matte" ); 114 } 115}