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.workinprogress;
031
032import java.io.File;
033import java.io.IOException;
034import java.util.ArrayList;
035import java.util.List;
036
037import org.openimaj.image.DisplayUtilities;
038import org.openimaj.image.ImageUtilities;
039import org.openimaj.image.MBFImage;
040import org.openimaj.math.util.FloatArrayStatsUtils;
041import org.openimaj.video.xuggle.XuggleVideo;
042
043public class BackgroundEstimator {
044        public static void main(String[] args) throws IOException {
045                final XuggleVideo xv = new XuggleVideo(new File("/Users/jon/Desktop/merlin/tunnel.mp4"));
046
047                final List<MBFImage> frameSample = new ArrayList<MBFImage>();
048                int count = 0;
049                for (final MBFImage fr : xv) {
050                        if (count % 30 == 0)
051                                System.out.println(count / 30);
052
053                        if (count % 30 == 0)
054                                frameSample.add(fr.clone());
055                        count++;
056                }
057
058                final MBFImage img = new MBFImage(frameSample.get(0).getWidth(), frameSample.get(0).getHeight());
059                final float[] vec = new float[frameSample.size()];
060                for (int y = 0; y < img.getHeight(); y++) {
061                        for (int x = 0; x < img.getWidth(); x++) {
062                                for (int b = 0; b < 3; b++) {
063                                        for (int i = 0; i < frameSample.size(); i++)
064                                                vec[i] = frameSample.get(i).getBand(b).pixels[y][x];
065
066                                        img.bands.get(b).pixels[y][x] = FloatArrayStatsUtils.median(vec);
067                                }
068                        }
069                }
070
071                DisplayUtilities.display(img);
072                ImageUtilities.write(img, new File("/Users/jon/Desktop/merlin/tunnel-background.png"));
073        }
074}