001/*******************************************************************************
002 * This software is provided as a supplement to the authors' textbooks on digital
003 * image processing published by Springer-Verlag in various languages and editions.
004 * Permission to use and distribute this software is granted under the BSD 2-Clause
005 * "Simplified" License (see http://opensource.org/licenses/BSD-2-Clause).
006 * Copyright (c) 2006-2023 Wilhelm Burger, Mark J. Burge. All rights reserved.
007 * Visit https://imagingbook.com for additional details.
008 ******************************************************************************/
009package imagingbook.common.morphology;
010
011import ij.process.ByteProcessor;
012
013import static imagingbook.common.morphology.StructuringElements.reflect;
014
015/**
016 * <p>
017 * Implements a binary morphological erosion operation. See Sec. 7.2.4 of [1] for additional details.
018 * </p>
019 * <p>
020 * [1] W. Burger, M.J. Burge, <em>Digital Image Processing &ndash; An Algorithmic Introduction</em>, 3rd ed, Springer
021 * (2022).
022 * </p>
023 *
024 * @author WB
025 * @version 2022/09/18
026 */
027public class BinaryErosion extends BinaryMorphologyFilter {
028        
029        /**
030         * Constructor, creates a {@link BinaryErosion} with a 3x3 box structuring
031         * element by default.
032         */
033        public BinaryErosion() {
034                super();
035        }
036        
037        /**
038         * Constructor, creates a {@link BinaryErosion} with the specified structuring
039         * element.
040         * 
041         * @param H the structuring element
042         */
043        public BinaryErosion(byte[][] H) {
044                super(H);
045        }
046
047        @Override
048        public void applyTo(ByteProcessor bp) {
049                // dilates the background
050                bp.invert();
051                new BinaryDilation(reflect(H)).applyTo(bp); //dilate(ip, reflect(H));
052                bp.invert();
053        }
054
055}