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.acmmm11.presentation.slides.tutorial; 031 032import org.openimaj.feature.local.list.LocalFeatureList; 033import org.openimaj.image.MBFImage; 034import org.openimaj.image.colour.RGBColour; 035import org.openimaj.image.feature.local.engine.DoGSIFTEngine; 036import org.openimaj.image.feature.local.keypoints.Keypoint; 037import org.openimaj.image.feature.local.keypoints.KeypointVisualizer; 038import org.openimaj.video.Video; 039 040/** 041 * Slide showing DoG feature localisation 042 * 043 * @author Jonathon Hare (jsh2@ecs.soton.ac.uk) 044 * @author Sina Samangooei (ss@ecs.soton.ac.uk) 045 * 046 */ 047 048public class SIFTFeatureTutorial extends TutorialPanel { 049 private static final long serialVersionUID = 1L; 050 051 private DoGSIFTEngine dog; 052 053 /** 054 * Default constructor 055 * 056 * @param capture 057 * @param width 058 * @param height 059 */ 060 public SIFTFeatureTutorial(Video<MBFImage> capture, int width,int height) { 061 super("Difference-of-Gaussian Keypoints", capture, width, height); 062 063 dog = new DoGSIFTEngine(); 064 dog.getOptions().setDoubleInitialImage(false); 065 } 066 067 @Override 068 public void doTutorial(MBFImage toDraw) { 069 LocalFeatureList<Keypoint> feats = dog.findFeatures(toDraw.flatten()); 070 KeypointVisualizer<Float[],MBFImage> vis = new KeypointVisualizer<Float[],MBFImage>(toDraw, feats); 071 toDraw.internalAssign(vis.drawCenter(RGBColour.RED)); 072 } 073}