Java tutorial
/* * This file is part of the LIRE project: http://www.semanticmetadata.net/lire * LIRE is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * LIRE is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with LIRE; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * We kindly ask you to refer the any or one of the following publications in * any publication mentioning or employing Lire: * * Lux Mathias, Savvas A. Chatzichristofis. Lire: Lucene Image Retrieval * An Extensible Java CBIR Library. In proceedings of the 16th ACM International * Conference on Multimedia, pp. 1085-1088, Vancouver, Canada, 2008 * URL: http://doi.acm.org/10.1145/1459359.1459577 * * Lux Mathias. Content Based Image Retrieval with LIRE. In proceedings of the * 19th ACM International Conference on Multimedia, pp. 735-738, Scottsdale, * Arizona, USA, 2011 * URL: http://dl.acm.org/citation.cfm?id=2072432 * * Mathias Lux, Oge Marques. Visual Information Retrieval using Java and LIRE * Morgan & Claypool, 2013 * URL: http://www.morganclaypool.com/doi/abs/10.2200/S00468ED1V01Y201301ICR025 * * Copyright statement: * -------------------- * (c) 2002-2013 by Mathias Lux (mathias@juggle.at) * http://www.semanticmetadata.net/lire, http://www.lire-project.net * * Updated: 16.04.13 18:32 */ package net.semanticmetadata.lire.benchmarking; import junit.framework.TestCase; import net.semanticmetadata.lire.DocumentBuilderFactory; import net.semanticmetadata.lire.imageanalysis.SurfFeature; import net.semanticmetadata.lire.imageanalysis.bovw.BOVWBuilder; import net.semanticmetadata.lire.impl.ChainedDocumentBuilder; import net.semanticmetadata.lire.impl.SurfDocumentBuilder; import net.semanticmetadata.lire.utils.FileUtils; import net.semanticmetadata.lire.utils.LuceneUtils; import org.apache.lucene.document.Document; import org.apache.lucene.index.IndexReader; import org.apache.lucene.index.IndexWriter; import org.apache.lucene.store.FSDirectory; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.util.ArrayList; /** * Created by IntelliJ IDEA. * User: mlux * Date: 30.06.2011 * Time: 15:18:41 * To change this template use File | Settings | File Templates. */ public class CombinationTest extends TestCase { String indexPath = "combi-index"; String dataPath = "wang-1000"; private int[] sampleQueries = { 284, 77, 108, 416, 144, 534, 898, 104, 67, 10, 607, 165, 343, 973, 591, 659, 812, 231, 261, 224, 227, 914, 427, 810, 979, 716, 253, 708, 751, 269, 531, 699, 835, 370, 642, 504, 297, 970, 929, 20, 669, 434, 201, 9, 575, 631, 730, 7, 546, 816, 431, 235, 289, 111, 862, 184, 857, 624, 323, 393, 465, 905, 581, 626, 212, 459, 722, 322, 584, 540, 194, 704, 410, 267, 349, 371, 909, 403, 724, 573, 539, 812, 831, 600, 667, 672, 454, 873, 452, 48, 322, 424, 952, 277, 565, 388, 149, 966, 524, 36, 528, 75, 337, 655, 836, 698, 230, 259, 897, 652, 590, 757, 673, 937, 676, 650, 297, 434, 358, 789, 484, 975, 318, 12, 506, 38, 979, 732, 957, 904, 852, 635, 620, 28, 59, 732, 84, 788, 562, 913, 173, 508, 32, 16, 882, 847, 320, 185, 268, 230, 259, 931, 653, 968, 838, 906, 596, 140, 880, 847, 297, 77, 983, 536, 494, 530, 870, 922, 467, 186, 254, 727, 439, 241, 12, 947, 561, 160, 740, 705, 619, 571, 745, 774, 845, 507, 156, 936, 473, 830, 88, 66, 204, 737, 770, 445, 358, 707, 95, 349 }; public void testIndexing() throws IOException { ChainedDocumentBuilder cb = new ChainedDocumentBuilder(); cb.addBuilder(new SurfDocumentBuilder()); cb.addBuilder(DocumentBuilderFactory.getColorLayoutBuilder()); System.out.println("-< Getting files to index >--------------"); ArrayList<String> images = FileUtils.getAllImages(new File(dataPath), true); System.out.println("-< Indexing " + images.size() + " files >--------------"); IndexWriter iw = LuceneUtils.createIndexWriter(indexPath, true); int count = 0; long time = System.currentTimeMillis(); for (String identifier : images) { Document doc = cb.createDocument(new FileInputStream(identifier), identifier); iw.addDocument(doc); count++; if (count % 100 == 0) System.out.println(count + " files indexed."); // if (count == 200) break; } long timeTaken = (System.currentTimeMillis() - time); float sec = ((float) timeTaken) / 1000f; System.out.println(sec + " seconds taken, " + (timeTaken / count) + " ms per image."); iw.commit(); iw.close(); System.out.println("-< Local features are getting clustered >--------------"); BOVWBuilder sh = new BOVWBuilder(IndexReader.open(FSDirectory.open(new File(indexPath))), new SurfFeature(), 200, 8000); sh.index(); System.out.println("-< Indexing finished >--------------"); } // public void testSearch() throws IOException { // int numHitsFiltering = 50; // IndexReader indexReader = IndexReader.open(FSDirectory.open(new File(indexPath))); // float eval = 0f; // for (int i = 0; i < sampleQueries.length; i++) { // Document query = indexReader.document(sampleQueries[i]); // eval += getResults(numHitsFiltering, indexReader, query); // } // eval = eval / (float) sampleQueries.length; // System.out.println("precision @ ten = " + eval); // } // // private float getResults(int numHitsFiltering, IndexReader indexReader, Document query) throws IOException { // SurfVisualWordsImageSearcher searcher = new SurfVisualWordsImageSearcher(numHitsFiltering); // // ColorLayout clQuery = new ColorLayout(); // clQuery.setByteArrayRepresentation(query.getBinaryValue(DocumentBuilder.FIELD_NAME_COLORLAYOUT_FAST)); // ImageSearchHits searchHits = searcher.search(query, indexReader); // // // ---- ranking: // ArrayList<SimpleResult> results = new ArrayList<SimpleResult>(numHitsFiltering); // for (int i = 0; i < searchHits.length(); i++) { //// results.add(new SimpleResult(searchHits.score(i), searchHits.doc(i))); // Document d = searchHits.doc(i); // ColorLayout cl = new ColorLayout(); // cl.setByteArrayRepresentation(d.getBinaryValue(DocumentBuilder.FIELD_NAME_COLORLAYOUT_FAST)); // float distance = clQuery.getDistance(cl); // SimpleResult s = new SimpleResult(distance, d); // results.add(s); // } // Collections.sort(results); // // int count = 0; // int goodOnes = 0; // String queryFile = query.getValues(DocumentBuilder.FIELD_NAME_IDENTIFIER)[0].split("\\\\")[5].replace(".jpg", ""); // int queryClass = Integer.parseInt(queryFile) / 100; // // for (Iterator<SimpleResult> simpleResultIterator = results.iterator(); simpleResultIterator.hasNext(); ) { // SimpleResult simpleResult = simpleResultIterator.next(); // String file = simpleResult.getDocument().getValues(DocumentBuilder.FIELD_NAME_IDENTIFIER)[0].split("\\\\")[5].replace(".jpg", ""); // int wangClass = Integer.parseInt(file) / 100; // if (!(simpleResult.getDistance() <= 0f) && count < 10) { // if (wangClass == queryClass) goodOnes++; // count++; // } // } // return (float) goodOnes / 10f; // } }