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.segmentation;
031
032import java.util.List;
033
034import org.openimaj.image.MBFImage;
035import org.openimaj.image.colour.ColourSpace;
036import org.openimaj.image.colour.RGBColour;
037import org.openimaj.image.pixel.ConnectedComponent;
038import org.openimaj.image.pixel.PixelSet;
039import org.openimaj.image.processor.connectedcomponent.render.BlobRenderer;
040
041/**
042 * Some utility functions for dealing with segmented output
043 * 
044 * @author Jonathon Hare (jsh2@ecs.soton.ac.uk)
045 * 
046 */
047public class SegmentationUtilities {
048        private SegmentationUtilities() {
049        }
050
051        /**
052         * Render the components to the image with randomly assigned colours.
053         * 
054         * @param image
055         *            Image to draw to
056         * @param components
057         *            the components
058         * @return the image
059         */
060        public static MBFImage renderSegments(MBFImage image, List<? extends PixelSet> components) {
061                for (final PixelSet cc : components) {
062                        final BlobRenderer<Float[]> br = new BlobRenderer<Float[]>(image, RGBColour.randomColour());
063                        br.process(new ConnectedComponent(cc.pixels));
064                }
065
066                return image;
067        }
068
069        /**
070         * Render the components to an image with randomly assigned colours.
071         * 
072         * @param width
073         *            Width of image.
074         * @param height
075         *            Height of image.
076         * @param components
077         *            the components.
078         * @return the rendered image.
079         */
080        public static MBFImage renderSegments(int width, int height, List<? extends PixelSet> components) {
081                return renderSegments(new MBFImage(width, height, ColourSpace.RGB), components);
082        }
083}