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.ipd.finder;
031
032import java.util.ArrayList;
033import java.util.HashMap;
034import java.util.List;
035
036import org.openimaj.image.FImage;
037import org.openimaj.image.analysis.pyramid.gaussian.GaussianOctave;
038import org.openimaj.image.analysis.pyramid.gaussian.GaussianPyramid;
039import org.openimaj.image.feature.local.detector.ipd.collector.InterestPointFeatureCollector;
040import org.openimaj.image.feature.local.interest.IPDSelectionMode;
041import org.openimaj.image.feature.local.interest.InterestPointData;
042import org.openimaj.image.feature.local.interest.MultiscaleInterestPointDetector;
043
044/**
045 * Finder with a specified detector which finds interest points at a given
046 * gaussian octave. This is often used in conjunction with a
047 * {@link GaussianPyramid} which provides {@link GaussianOctave} instances.
048 *
049 * This finder calls a specified {@link InterestPointFeatureCollector} which
050 * does something with the features located at a given octave.
051 *
052 * @author Sina Samangooei (ss@ecs.soton.ac.uk)
053 * @param <T>
054 *            The type of {@link InterestPointData}
055 *
056 */
057public class LoggingOctaveInterestPointFinder<T extends InterestPointData> extends OctaveInterestPointFinder<T> {
058
059        private HashMap<String, Integer> scalePoints;
060        private ArrayList<String> scales;
061
062        /**
063         * instantiate scalepoints the superclass and scalepoints to log
064         *
065         * @param detector
066         * @param selectionMode
067         */
068        public LoggingOctaveInterestPointFinder(MultiscaleInterestPointDetector<T> detector, IPDSelectionMode selectionMode) {
069                super(detector, selectionMode);
070                scalePoints = new HashMap<String, Integer>();
071                scales = new ArrayList<String>();
072        }
073
074        @Override
075        protected void processOctaveLevelPoints(FImage fImage, List<T> points, float currentScale, float octaveSize) {
076                super.processOctaveLevelPoints(fImage, points, currentScale, octaveSize);
077                final String key = String.format("%f-%f", currentScale * octaveSize, octaveSize);
078                this.scalePoints.put(key, points.size());
079                this.scales.add(key);
080        }
081
082        private void printScalePoints() {
083                for (final String scale : scales) {
084                        final Integer entry = this.scalePoints.get(scale);
085                        System.out.format("%s,%d\n", scale, entry);
086                }
087        }
088
089        @Override
090        public void finish() {
091                printScalePoints();
092        }
093}