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 */ 030package org.openimaj.tools.globalfeature.type; 031 032import org.kohsuke.args4j.Option; 033import org.openimaj.feature.FeatureVector; 034import org.openimaj.image.FImage; 035import org.openimaj.image.MBFImage; 036import org.openimaj.image.feature.global.RuleOfThirds; 037import org.openimaj.tools.globalfeature.GlobalFeatureExtractor; 038 039/** 040 * Rule of thirds feature 041 * @see RuleOfThirds 042 */ 043public class RuleOfThirdsExtractor extends GlobalFeatureExtractor { 044 @Option(name="--saliency-sigma", aliases="-sals", required=false, usage="the amount of Gaussian blurring for the saliency estimation (default 1.0)") 045 float saliencySigma = 1f; 046 047 @Option(name="--segment-sigma", aliases="-segs", required=false, usage="the amount of Gaussian blurring applied prior to segmentation (default 0.5)") 048 float segmenterSigma = 0.5f; 049 050 @Option(name="--threshold", aliases="-k", required=false, usage="the segmentation threshold (default 500/255)") 051 float k = 500f / 255f; 052 053 @Option(name="--min-size", aliases="-m", required=false, usage="the minimum segment size (default 50)") 054 int minSize = 50; 055 056 @Override 057 public FeatureVector extract(MBFImage image, FImage mask) { 058 RuleOfThirds cc = new RuleOfThirds(saliencySigma, segmenterSigma, k, minSize); 059 image.analyseWith(cc); 060 return cc.getFeatureVector(); 061 } 062}