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.experiment.gmm.retrieval;
031
032import org.openimaj.feature.FeatureVector;
033import org.openimaj.feature.local.LocalFeature;
034import org.openimaj.feature.local.list.LocalFeatureList;
035import org.openimaj.image.FImage;
036import org.openimaj.image.feature.dense.gradient.dsift.DenseSIFT;
037import org.openimaj.util.function.Function;
038
039/**
040 *
041 * @author Sina Samangooei (ss@ecs.soton.ac.uk)
042 */
043public class DSiftFeatureExtractor implements 
044        Function<
045                FImage,  
046                LocalFeatureList<? extends LocalFeature<?,? extends FeatureVector>>  
047        >{
048        
049        @Override
050        public LocalFeatureList<? extends LocalFeature<?,? extends FeatureVector>> apply(FImage img) {
051                DenseSIFT dsift = new DenseSIFT();
052                dsift.analyseImage(img);
053                LocalFeatureList<? extends LocalFeature<?, ? extends FeatureVector>> kps = dsift.getByteKeypoints();
054                return kps;
055        }
056}