1 /* 2 * Copyright (c) 2007, 2017, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package org.jemmy.image.awt; 27 28 29 import org.jemmy.image.pixel.AverageDistanceComparator; 30 31 32 /** 33 * Compares two images calculating average color distance between pixels and 34 * comparing it to the threshold value. See {@linkplain NaturalImageComparator 35 * NaturalImageComparator} for color comparison details. 36 * 37 * @author KAM 38 */ 39 public class AverageDistanceImageComparator extends BufferedImageComparator { 40 41 /** 42 * Creates comparator with the default sensitivity value = 0.02 43 * (around 5 in 0-255 color component value). 44 * @see #AverageDistanceImageComparator(double) 45 */ 46 public AverageDistanceImageComparator() { 47 this(0.02); 48 } 49 50 /** 51 * Creates comparator with the specified sensitivity value 52 * @param sensitivity Maximum threshold for average 3-D distance between 53 * colors in 3-D sRGB color space for images to be considered equal. 54 * Meaningful values lay between 0 and approx 1.733. 0 means colors should 55 * be equal to pass the comparison, 1.733 (which is more than square root 56 * of 3) means that comparison will be passed even if all the colors are 57 * completely different. 58 */ 59 public AverageDistanceImageComparator(double sensitivity) { 60 super(new AverageDistanceComparator(sensitivity)); 61 } 62 63 public void setSensitivity(double sensitivity) { 64 ((AverageDistanceComparator)getRasterComparator()).setThreshold(sensitivity); 65 } 66 public double getSensitivity() { 67 return ((AverageDistanceComparator)getRasterComparator()).getThreshold(); 68 } 69 }