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.demos.sandbox;
031
032import java.util.ArrayList;
033import java.util.List;
034import java.util.Random;
035
036import org.openimaj.image.DisplayUtilities;
037import org.openimaj.image.FImage;
038import org.openimaj.image.MBFImage;
039import org.openimaj.image.colour.RGBColour;
040import org.openimaj.image.model.asm.ActiveShapeModel.IterationResult;
041import org.openimaj.image.model.asm.MultiResolutionActiveShapeModel;
042import org.openimaj.image.model.landmark.FNormalLandmarkModel;
043import org.openimaj.image.pixel.sampling.FLineSampler;
044import org.openimaj.math.geometry.point.Point2dImpl;
045import org.openimaj.math.geometry.point.PointList;
046import org.openimaj.math.geometry.point.PointListConnections;
047import org.openimaj.math.geometry.shape.PointDistributionModel;
048import org.openimaj.math.geometry.shape.Triangle;
049import org.openimaj.math.geometry.transforms.TransformUtilities;
050import org.openimaj.math.matrix.algorithm.pca.PrincipalComponentAnalysis.NumberComponentSelector;
051import org.openimaj.util.pair.IndependentPair;
052
053import Jama.Matrix;
054
055public class ASMTester {
056        public static List<IndependentPair<PointList, FImage>> generateData(int number) {
057                final List<IndependentPair<PointList, FImage>> data = new ArrayList<IndependentPair<PointList, FImage>>(number);
058
059                final Random rnd = new Random();
060
061                for (int i = 0; i < number; i++) {
062                        final float c1 = rnd.nextFloat();
063                        float c2 = rnd.nextFloat();
064
065                        while (Math.abs(c1 - c2) < 0.1) {
066                                c2 = rnd.nextFloat();
067                        }
068
069                        final Triangle t = new Triangle(
070                                        new Point2dImpl(((float) i / (number - 1)) * 80 + 10f, 10),
071                                        new Point2dImpl(90, 90),
072                                        new Point2dImpl(10, 90)
073                                        );
074
075                        final FImage img = new FImage(100, 100);
076                        img.fill(Math.min(c1, c2));
077                        img.drawShapeFilled(t, Math.max(c1, c2));
078
079                        data.add(new IndependentPair<PointList, FImage>(t.asPolygon(), img));
080                }
081
082                return data;
083        }
084
085        public static void main(String[] args) {
086                final List<IndependentPair<PointList, FImage>> data = generateData(10);
087                final PointListConnections connections = new PointListConnections();
088                connections.addConnection(0, 1);
089                connections.addConnection(1, 2);
090                connections.addConnection(2, 0);
091
092                final float scale = 0.4f;
093                final FNormalLandmarkModel.Factory factory = new FNormalLandmarkModel.Factory(connections,
094                                FLineSampler.INTERPOLATED_DERIVATIVE, 5, 13, scale);
095                final MultiResolutionActiveShapeModel<FImage> asm = MultiResolutionActiveShapeModel.trainModel(1,
096                                new NumberComponentSelector(10), data, new PointDistributionModel.BoxConstraint(3), factory);
097
098                for (final IndependentPair<PointList, FImage> inst : generateData(10)) {
099                        final MBFImage rgb = inst.secondObject().toRGB();
100
101                        // Matrix pose = TransformUtilities.translateMatrix(50,
102                        // 50).times(TransformUtilities.scaleMatrix(50, 50));
103                        // PointList shape = asm.getPDM().getMean().transform(pose);
104                        // Matrix pose = Matrix.identity(3, 3);
105                        final Matrix pose = TransformUtilities.scaleMatrixAboutPoint(0.8, 0.8, 50, 50);
106                        final PointList shape = inst.firstObject().transform(pose);
107                        rgb.drawLines(connections.getLines(shape), 1, RGBColour.RED);
108
109                        final IterationResult res = asm.fit(inst.secondObject(), shape);
110
111                        rgb.drawLines(connections.getLines(res.shape), 1, RGBColour.GREEN);
112
113                        DisplayUtilities.display(rgb);
114                }
115        }
116}