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.processing.face.feature.ltp;
031
032import org.openimaj.citation.annotation.Reference;
033import org.openimaj.citation.annotation.ReferenceType;
034import org.openimaj.io.ReadWriteableBinary;
035
036/**
037 * 
038 * 
039 * @author Jonathon Hare (jsh2@ecs.soton.ac.uk)
040 *
041 */
042@Reference(
043                type = ReferenceType.Article,
044                author = { "Xiaoyang Tan", "Triggs, B." },
045                title = "Enhanced Local Texture Feature Sets for Face Recognition Under Difficult Lighting Conditions",
046                year = "2010",
047                journal = "Image Processing, IEEE Transactions on",
048                pages = { "1635 ", "1650" },
049                month = "june ",
050                number = "6",
051                volume = "19",
052                customData = {
053                        "keywords", "CAS-PEAL-R1;Gabor wavelets;PCA;distance transform based matching;extended Yale-B;face recognition;kernel-based feature extraction;local binary patterns;local spatial histograms;local ternary patterns;local texture feature set enhancement;local texture-based face representations;multiple feature fusion;principal component analysis;robust illumination normalization;face recognition;feature extraction;image enhancement;image fusion;image representation;image texture;principal component analysis;wavelet transforms;Algorithms;Biometry;Face;Humans;Image Enhancement;Image Interpretation, Computer-Assisted;Imaging, Three-Dimensional;Lighting;Pattern Recognition, Automated;Reproducibility of Results;Sensitivity and Specificity;Subtraction Technique;",
054                        "doi", "10.1109/TIP.2010.2042645",
055                        "ISSN", "1057-7149"
056                }
057        )
058public interface LTPWeighting extends ReadWriteableBinary {
059        /**
060         * Determine the weighting scheme for the distances produced
061         * by the EuclideanDistanceTransform.
062         * @param distance the unweighted distance in pixels
063         * @return the weighted distance
064         */
065        public abstract float weightDistance(float distance);
066}