3 * Copyright (C) 2013 Miguel Casas-Sanchez <miguelecasassanchez@gmail.com>
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:
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
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.
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
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.
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.
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.
44 #ifndef __GST_SEGMENTATION_H__
45 #define __GST_SEGMENTATION_H__
48 #include <gst/opencv/gstopencvvideofilter.h>
50 #include <opencv2/video.hpp>
51 #include <opencv2/core.hpp>
52 #include <opencv2/bgsegm.hpp>
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;
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) */
81 typedef struct code_book
85 int t; /*count every access */
88 struct _GstSegmentation
90 GstOpencvVideoFilter element;
99 cv::Mat cvFG; /* used for the alpha BW 1ch image composition */
100 cv::Mat ch1, ch2, ch3;
103 /* for codebook approach */
105 int learning_interval;
107 /* for MOG methods */
108 cv::Ptr<cv::BackgroundSubtractor> mog; /* cv::BackgroundSubtractorMOG */
109 cv::Ptr<cv::BackgroundSubtractorMOG2> mog2; /* cv::BackgroundSubtractorMOG2 */
111 double learning_rate;
114 struct _GstSegmentationClass
116 GstOpencvVideoFilterClass parent_class;
119 GType gst_segmentation_get_type (void);
121 GST_ELEMENT_REGISTER_DECLARE (segmentation);
124 #endif /* __GST_SEGMENTATION_H__ */