CreateARFFFile.java

/*
 * This file is part of the LIRE project: http://lire-project.net
 * 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
 */

package net.semanticmetadata.lire.sampleapp;

import net.semanticmetadata.lire.imageanalysis.features.GlobalFeature;
import net.semanticmetadata.lire.imageanalysis.features.global.CEDD;
import net.semanticmetadata.lire.utils.FileUtils;

import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Iterator;

/**
 * User: Mathias Lux, mathias@juggle.at
 * Date: 06.02. 2014
 */
public class CreateARFFFile {
    public static void main(String[] args) throws IOException {
        // Checking if arg[0] is there and if it is a directory.
        boolean passed = false;
        if (args.length > 0) {
            File f = new File(args[0]);
            System.out.println("% Indexing images in " + args[0]);
            if (f.exists() && f.isDirectory()) passed = true;
        }
        if (!passed) {
            System.out.println("No directory given as first argument.");
            System.out.println("Run \"CreateARFFFile <directory>\" to index files of a directory.");
            System.exit(1);
        }
        // Getting all images from a directory and its sub directories.
        ArrayList<String> images = FileUtils.getAllImages(new File(args[0]), true);

        // Create the instance of the LireFeature you want to use:
        GlobalFeature feature = new CEDD();

        if (images.size()>0) {
            // getting the number of dimensions:
            feature.extract(ImageIO.read(new FileInputStream(images.get(0))));
            System.out.println("@RELATION images\n");
            System.out.println("@ATTRIBUTE filename string\n");
            for (int i=0;i<feature.getFeatureVector().length;i++) {
                System.out.println("@ATTRIBUTE f"+i+" NUMERIC\n");
            }
            System.out.println("\n@DATA\n");
            // Iterating through images building the low level features
            for (Iterator<String> it = images.iterator(); it.hasNext(); ) {
                String imageFilePath = it.next();
                try {
                    BufferedImage img = ImageIO.read(new FileInputStream(imageFilePath));
                    System.out.print(imageFilePath);
                    feature.extract(img);
                    for (int i = 0; i < feature.getFeatureVector().length; i++) {
                        double v = feature.getFeatureVector()[i];
                        System.out.print("," + (Double.toString(v)).replace(',', '.'));
                    }
                    System.out.println();
                } catch (Exception e) {
                    System.err.println("Error reading image or indexing it.");
                    e.printStackTrace();
                }
            }
            // closing the IndexWriter
            System.out.println("% Finished indexing.");
        }  else {
            System.err.println("No images found in kgiven directory: " + args[0]);
        }
    }
}