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}