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.demos.sandbox.image.vlad;
031
032import java.io.File;
033import java.io.IOException;
034import java.util.List;
035
036import org.openimaj.feature.MultidimensionalFloatFV;
037import org.openimaj.feature.local.list.LocalFeatureList;
038import org.openimaj.feature.normalisation.HellingerNormaliser;
039import org.openimaj.image.DisplayUtilities;
040import org.openimaj.image.FImage;
041import org.openimaj.image.ImageUtilities;
042import org.openimaj.image.feature.local.aggregate.VLAD;
043import org.openimaj.image.feature.local.engine.DoGSIFTEngine;
044import org.openimaj.image.feature.local.keypoints.FloatKeypoint;
045import org.openimaj.image.feature.local.keypoints.Keypoint;
046import org.openimaj.image.indexing.vlad.VLADIndexerData;
047
048public class VLADDemo {
049        public static void main(String[] args) throws IOException {
050                final FImage image = ImageUtilities.readF(new File("/Users/jsh2/Data/ukbench/full/ukbench01001.jpg"));
051                final DoGSIFTEngine engine = new DoGSIFTEngine();
052                engine.getOptions().setDoubleInitialImage(false);
053
054                final LocalFeatureList<Keypoint> features = engine.findFeatures(image);
055                final List<FloatKeypoint> fkeys = FloatKeypoint.convert(features);
056
057                for (final FloatKeypoint k : fkeys)
058                        HellingerNormaliser.normalise(k.vector, 0);
059
060                final VLADIndexerData indexer = VLADIndexerData.read(new File("/Users/jsh2/vlad-indexer-ukbench-2x.dat"));
061
062                // final ByteCentroidsResult centroids = IOUtils.read(new
063                // File("/Users/jsh2/Desktop/ukbench16.voc"),
064                // ByteCentroidsResult.class);
065                // final ExactByteAssigner assigner = new ExactByteAssigner(centroids);
066                // final VLAD<byte[]> vlad = new VLAD<byte[]>(assigner,
067                // centroids.centroids, true);
068                // final MultidimensionalFloatFV agg = vlad.aggregate(features);
069
070                final MultidimensionalFloatFV agg = indexer.getVLAD().aggregate(fkeys);
071
072                System.out.println(agg);
073
074                DisplayUtilities.display(VLAD.drawDescriptor(agg.values, 64, 4, 8));
075        }
076}