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.image.feature.local.detector.dog.collector; 031 032import org.openimaj.feature.local.LocalFeature; 033import org.openimaj.feature.local.list.LocalFeatureList; 034import org.openimaj.feature.local.list.MemoryLocalFeatureList; 035import org.openimaj.image.FImage; 036import org.openimaj.image.Image; 037import org.openimaj.image.analysis.pyramid.Octave; 038import org.openimaj.image.feature.local.extraction.FeatureVectorExtractor; 039import org.openimaj.image.feature.local.extraction.ScaleSpaceImageExtractorProperties; 040import org.openimaj.image.processor.SinglebandImageProcessor; 041 042/** 043 * Abstract base class for objects that collate {@link LocalFeature}s as they 044 * are extracted from {@link Octave}s. This base class holds a generic list for 045 * storing the features and a reference to the feature extractor instance that 046 * is responsible for extracting the feature vectors. 047 * 048 * Typically the same AbstractOctaveLocalFeatureCollector will be used across 049 * all Octaves, and will thus contain all the features from the image. 050 * 051 * @author Jonathon Hare (jsh2@ecs.soton.ac.uk) 052 * 053 * @param <OCTAVE> 054 * the type of {@link Octave} from which features are extracted 055 * @param <EXTRACTOR> 056 * the type of {@link FeatureVectorExtractor} which extracts the 057 * feature vectors 058 * @param <FEATURE> 059 * the type of {@link LocalFeature} which are extracted 060 * @param <IMAGE> 061 * the type of {@link Image} from which features are extracted 062 */ 063public abstract class AbstractOctaveLocalFeatureCollector<OCTAVE extends Octave<?, ?, IMAGE>, EXTRACTOR extends FeatureVectorExtractor<?, ScaleSpaceImageExtractorProperties<IMAGE>>, FEATURE extends LocalFeature<?, ?>, IMAGE extends Image<?, IMAGE> & SinglebandImageProcessor.Processable<Float, FImage, IMAGE>> 064 implements 065 Collector<OCTAVE, FEATURE, IMAGE> 066{ 067 protected EXTRACTOR featureExtractor; 068 protected LocalFeatureList<FEATURE> features = new MemoryLocalFeatureList<FEATURE>(); 069 070 /** 071 * Construct the AbstractOctaveLocalFeatureCollector with the given feature 072 * extractor. 073 * 074 * @param featureExtractor 075 * the feature extractor 076 */ 077 public AbstractOctaveLocalFeatureCollector(EXTRACTOR featureExtractor) { 078 this.featureExtractor = featureExtractor; 079 } 080 081 /** 082 * Get the list of features collected. 083 * 084 * @return the features 085 */ 086 @Override 087 public LocalFeatureList<FEATURE> getFeatures() { 088 return features; 089 } 090}