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.image.objectdetection.haar.training;
031
032import java.io.File;
033import java.io.IOException;
034import java.util.List;
035
036import org.openimaj.image.DisplayUtilities;
037import org.openimaj.image.FImage;
038import org.openimaj.image.ImageUtilities;
039import org.openimaj.image.objectdetection.haar.HaarFeature;
040import org.openimaj.image.objectdetection.haar.WeightedRectangle;
041import org.openimaj.image.processing.resize.ResizeProcessor;
042import org.openimaj.math.geometry.shape.Rectangle;
043
044public class DrawingTest {
045        static FImage loadPositive() throws IOException {
046                final String base = "/Users/jsh2/Data/att_faces/s%d/%d.pgm";
047
048                final FImage image = new FImage(400, 400);
049                for (int j = 1; j <= 40; j++) {
050                        for (int i = 1; i <= 10; i++) {
051                                final File file = new File(String.format(base, j, i));
052
053                                FImage img = ImageUtilities.readF(file);
054                                img = img.extractCenter(50, 50);
055                                img = ResizeProcessor.resample(img, 400, 400);
056                                image.addInplace(img);
057                        }
058                }
059
060                return image.normalise();
061        }
062
063        public static FImage drawRects(WeightedRectangle[] rects) {
064                final FImage image = new FImage(400, 400);
065                return drawRects(rects, image);
066        }
067
068        public static FImage drawRects(WeightedRectangle[] rects, FImage image) {
069                final int scale = 20;
070                for (final WeightedRectangle r : rects) {
071
072                        final Rectangle rect = new Rectangle(scale * r.x, scale * r.y, scale * r.width, scale * r.height);
073
074                        image.drawShape(rect, 1F);
075                }
076                return image;
077        }
078
079        public static void main(String[] args) throws IOException, InterruptedException {
080                final List<HaarFeature> features = HaarFeatureType.generateFeatures(20, 20, HaarFeatureType.BASIC);
081
082                final FImage img = loadPositive();
083                for (int i = 0; i < features.size(); i++) {
084                        final HaarFeature f = features.get(i);
085
086                        DisplayUtilities.displayName(drawRects(f.rects, img.clone()), "foo");
087                        Thread.sleep(100);
088                }
089        }
090}