1 /** 2 * Copyright (c) 2011, The University of Southampton and the individual contributors. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without modification, 6 * are permitted provided that the following conditions are met: 7 * 8 * * Redistributions of source code must retain the above copyright notice, 9 * this list of conditions and the following disclaimer. 10 * 11 * * Redistributions in binary form must reproduce the above copyright notice, 12 * this list of conditions and the following disclaimer in the documentation 13 * and/or other materials provided with the distribution. 14 * 15 * * Neither the name of the University of Southampton nor the names of its 16 * contributors may be used to endorse or promote products derived from this 17 * software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 22 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR 23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 26 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 package org.openimaj.image.feature; 31 32 import org.openimaj.feature.FeatureExtractor; 33 import org.openimaj.feature.FloatFV; 34 import org.openimaj.image.FImage; 35 import org.openimaj.util.array.ArrayUtils; 36 37 /** 38 * Transform a {@link FloatFV} into an {@link FImage}. 39 * Note: this makes a copy of the data 40 * 41 * @author Jonathon Hare (jsh2@ecs.soton.ac.uk) 42 * 43 */ 44 public class FloatFV2FImage implements FeatureExtractor<FImage, FloatFV> { 45 /** 46 * the image width 47 */ 48 public int width; 49 50 /** 51 * the image height 52 */ 53 public int height; 54 55 /** 56 * Construct the converter with the given image size 57 * @param width 58 * @param height 59 */ 60 public FloatFV2FImage(int width, int height) { 61 this.width = width; 62 this.height = height; 63 } 64 65 @Override 66 public FImage extractFeature(FloatFV object) { 67 return new FImage(ArrayUtils.reshape(object.values, width, height)); 68 } 69 70 /** 71 * Transform a {@link FloatFV} into an {@link FImage}. 72 * Note: this makes a copy of the data. 73 * 74 * @param fv the feature vector 75 * @param width the image width 76 * @param height the image height 77 * @return the image 78 */ 79 public static FImage extractFeature(FloatFV fv, int width, int height) { 80 return new FImage(ArrayUtils.reshape(fv.values, width, height)); 81 } 82 }