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.objectdetection; 031 032import java.util.List; 033 034import org.openimaj.image.Image; 035import org.openimaj.image.objectdetection.filtering.DetectionFilter; 036import org.openimaj.math.geometry.shape.Rectangle; 037 038/** 039 * An {@link ObjectDetector} that wraps another {@link ObjectDetector} and 040 * performs filtering with a {@link DetectionFilter}. 041 * 042 * @author Jonathon Hare (jsh2@ecs.soton.ac.uk) 043 * 044 * @param <IMAGE> 045 * Type of image in which the detection happens 046 * @param <DETECTED_OBJECT> 047 * The type of object emitted by the inner detector 048 * @param <FILTERED_OBJECT> 049 * The type of object emitted by the filter 050 */ 051public class FilteringObjectDetector<IMAGE extends Image<?, IMAGE>, DETECTED_OBJECT, FILTERED_OBJECT> 052 implements 053 ObjectDetector<IMAGE, FILTERED_OBJECT> 054{ 055 private ObjectDetector<IMAGE, DETECTED_OBJECT> detector; 056 private DetectionFilter<DETECTED_OBJECT, FILTERED_OBJECT> filter; 057 058 /** 059 * Construct with the given detector and filter. 060 * 061 * @param detector 062 * the detector 063 * @param filter 064 * the filter 065 */ 066 public FilteringObjectDetector(ObjectDetector<IMAGE, DETECTED_OBJECT> detector, 067 DetectionFilter<DETECTED_OBJECT, FILTERED_OBJECT> filter) 068 { 069 super(); 070 this.detector = detector; 071 this.filter = filter; 072 } 073 074 @Override 075 public List<FILTERED_OBJECT> detect(IMAGE image) { 076 return filter.apply(detector.detect(image)); 077 } 078 079 @Override 080 public void setROI(Rectangle roi) { 081 detector.setROI(roi); 082 } 083}