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.tools.faces.recognition;
031
032import java.io.File;
033import java.io.IOException;
034
035import org.kohsuke.args4j.CmdLineException;
036import org.kohsuke.args4j.CmdLineParser;
037import org.openimaj.image.ImageUtilities;
038import org.openimaj.image.processing.face.detection.DetectedFace;
039import org.openimaj.image.processing.face.recognition.FaceRecognitionEngine;
040import org.openimaj.image.processing.face.recognition.benchmarking.dataset.TextFileDataset;
041import org.openimaj.tools.faces.recognition.options.RecognitionStrategy;
042
043/**
044 * A tool for training face recognisers
045 * 
046 * @author Jonathon Hare (jsh2@ecs.soton.ac.uk)
047 * 
048 * @param <T>
049 *            Type of {@link DetectedFace}
050 */
051public class FaceRecogniserTrainingTool<T extends DetectedFace> {
052
053        /**
054         * The main method of the tool.
055         * 
056         * @param <T>
057         *            Type of DetectedFace
058         * 
059         * @param args
060         * @throws IOException
061         */
062        public static <T extends DetectedFace> void main(String[] args) throws IOException {
063                final FaceRecogniserTrainingToolOptions options = new FaceRecogniserTrainingToolOptions();
064                final CmdLineParser parser = new CmdLineParser(options);
065
066                try
067                {
068                        parser.parseArgument(args);
069                } catch (final CmdLineException e)
070                {
071                        System.err.println(e.getMessage());
072                        System.err.println("java FaceRecogniserTrainingTool [options...] IMAGE-FILES-OR-DIRECTORIES");
073                        parser.printUsage(System.err);
074
075                        System.err.println();
076                        System.err.println("Strategy information:");
077                        for (final RecognitionStrategy s : RecognitionStrategy.values()) {
078                                System.err.println(s);
079                        }
080                        return;
081                }
082
083                final FaceRecognitionEngine<T, String> engine = options.getEngine();
084
085                if (options.identifier == null) {
086                        if (options.datasetFile == null)
087                        {
088                                for (final File f : options.files)
089                                        engine.train(options.identifier, ImageUtilities.readF(f));
090                        }
091                        else {
092                                engine.train(new TextFileDataset(options.datasetFile));
093                        }
094                } else {
095                        for (final File f : options.files)
096                                engine.train(options.identifier, ImageUtilities.readF(f));
097                }
098
099                engine.save(options.recogniserFile);
100        }
101
102}