1 /* 2 * GStreamer 3 * Copyright (C) 2013 Miguel Casas-Sanchez <miguelecasassanchez@gmail.com> 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the "Software"), 7 * to deal in the Software without restriction, including without limitation 8 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 9 * and/or sell copies of the Software, and to permit persons to whom the 10 * Software is furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice shall be included in 13 * all copies or substantial portions of the Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 21 * DEALINGS IN THE SOFTWARE. 22 * 23 * Alternatively, the contents of this file may be used under the 24 * GNU Lesser General Public License Version 2.1 (the "LGPL"), in 25 * which case the following provisions apply instead of the ones 26 * mentioned above: 27 * 28 * This library is free software; you can redistribute it and/or 29 * modify it under the terms of the GNU Library General Public 30 * License as published by the Free Software Foundation; either 31 * version 2 of the License, or (at your option) any later version. 32 * 33 * This library is distributed in the hope that it will be useful, 34 * but WITHOUT ANY WARRANTY; without even the implied warranty of 35 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 36 * Library General Public License for more details. 37 * 38 * You should have received a copy of the GNU Library General Public 39 * License along with this library; if not, write to the 40 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 41 * Boston, MA 02110-1301, USA. 42 */ 43 44 #ifndef __GST_SEGMENTATION_H__ 45 #define __GST_SEGMENTATION_H__ 46 47 #include <gst/gst.h> 48 #include <gst/opencv/gstopencvvideofilter.h> 49 50 #include <opencv2/video.hpp> 51 #include <opencv2/core.hpp> 52 #include <opencv2/bgsegm.hpp> 53 54 G_BEGIN_DECLS 55 /* #defines don't like whitespacey bits */ 56 #define GST_TYPE_SEGMENTATION \ 57 (gst_segmentation_get_type()) 58 #define GST_SEGMENTATION(obj) \ 59 (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_SEGMENTATION,GstSegmentation)) 60 #define GST_SEGMENTATION_CLASS(klass) \ 61 (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_SEGMENTATION,GstSegmentationClass)) 62 #define GST_IS_SEGMENTATION(obj) \ 63 (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_SEGMENTATION)) 64 #define GST_IS_SEGMENTATION_CLASS(klass) \ 65 (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_SEGMENTATION)) 66 typedef struct _GstSegmentation GstSegmentation; 67 typedef struct _GstSegmentationClass GstSegmentationClass; 68 69 #define CHANNELS 3 70 typedef struct ce 71 { 72 unsigned char learnHigh[CHANNELS]; /* High side threshold for learning */ 73 unsigned char learnLow[CHANNELS]; /* Low side threshold for learning */ 74 unsigned char max[CHANNELS]; /* High side of box boundary */ 75 unsigned char min[CHANNELS]; /* Low side of box boundary */ 76 int t_last_update; /* Allow us to kill stale entries */ 77 int stale; /* max negative run (longest period of inactivity) */ 78 } code_element; 79 80 81 typedef struct code_book 82 { 83 code_element **cb; 84 int numEntries; 85 int t; /*count every access */ 86 } codeBook; 87 88 struct _GstSegmentation 89 { 90 GstOpencvVideoFilter element; 91 gint method; 92 93 gboolean test_mode; 94 gint width, height; 95 96 cv::Mat cvRGB; 97 cv::Mat cvYUV; 98 99 cv::Mat cvFG; /* used for the alpha BW 1ch image composition */ 100 cv::Mat ch1, ch2, ch3; 101 int framecount; 102 103 /* for codebook approach */ 104 codeBook *TcodeBook; 105 int learning_interval; 106 107 /* for MOG methods */ 108 cv::Ptr<cv::BackgroundSubtractor> mog; /* cv::BackgroundSubtractorMOG */ 109 cv::Ptr<cv::BackgroundSubtractorMOG2> mog2; /* cv::BackgroundSubtractorMOG2 */ 110 111 double learning_rate; 112 }; 113 114 struct _GstSegmentationClass 115 { 116 GstOpencvVideoFilterClass parent_class; 117 }; 118 119 GType gst_segmentation_get_type (void); 120 121 gboolean gst_segmentation_plugin_init (GstPlugin * plugin); 122 123 G_END_DECLS 124 #endif /* __GST_SEGMENTATION_H__ */ 125