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3a0a4a8d70
face detection will be performed only if image standard deviation is greater that min-stddev. Default min-stddev is 0 for backward compatibility. This property will avoid to perform face detection on images with little changes improving cpu usage and reducing false positives https://bugzilla.gnome.org/show_bug.cgi?id=730510
127 lines
4.5 KiB
C
127 lines
4.5 KiB
C
/*
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* GStreamer
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* Copyright (C) 2005 Thomas Vander Stichele <thomas@apestaart.org>
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* Copyright (C) 2005 Ronald S. Bultje <rbultje@ronald.bitfreak.net>
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* Copyright (C) 2008 Michael Sheldon <mike@mikeasoft.com>
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* Copyright (C) 2011 Stefan Sauer <ensonic@users.sf.net>
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* Copyright (C) 2011 Robert Jobbagy <jobbagy.robert@gmail.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Alternatively, the contents of this file may be used under the
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* GNU Lesser General Public License Version 2.1 (the "LGPL"), in
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* which case the following provisions apply instead of the ones
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* mentioned above:
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_FACE_DETECT_H__
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#define __GST_FACE_DETECT_H__
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#include <gst/gst.h>
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#include <cv.h>
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#include "gstopencvvideofilter.h"
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#if (CV_MAJOR_VERSION >= 2) && (CV_MINOR_VERSION >= 2)
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#include <opencv2/objdetect/objdetect.hpp>
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#endif
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G_BEGIN_DECLS
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/* #defines don't like whitespacey bits */
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#define GST_TYPE_FACE_DETECT \
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(gst_face_detect_get_type())
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#define GST_FACE_DETECT(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_FACE_DETECT,GstFaceDetect))
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#define GST_FACE_DETECT_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_FACE_DETECT,GstFaceDetectClass))
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#define GST_IS_FACE_DETECT(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_FACE_DETECT))
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#define GST_IS_FACE_DETECT_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_FACE_DETECT))
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typedef struct _GstFaceDetect GstFaceDetect;
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typedef struct _GstFaceDetectClass GstFaceDetectClass;
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/**
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* GstFaceDetectUpdates
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* @GST_FACEDETECT_UPDATES_EVERY_FRAME: Send bus update messages for every frame
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* @GST_FACEDETECT_UPDATES_ON_CHANGE: Send bus update messages on change (face detected/not detected)
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* @GST_FACEDETECT_UPDATES_ON_FACE: Send bus update messages when a face is detected
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* @GST_FACEDETECT_UPDATES_NONE: No bus update messages
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*
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* Bus messages update scheme
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*/
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enum _GstFaceDetectUpdates {
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GST_FACEDETECT_UPDATES_EVERY_FRAME = 0,
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GST_FACEDETECT_UPDATES_ON_CHANGE = 1,
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GST_FACEDETECT_UPDATES_ON_FACE = 2,
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GST_FACEDETECT_UPDATES_NONE = 3
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};
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struct _GstFaceDetect
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{
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GstOpencvVideoFilter element;
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gboolean display;
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gboolean face_detected;
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gchar *face_profile;
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gchar *nose_profile;
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gchar *mouth_profile;
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gchar *eyes_profile;
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gdouble scale_factor;
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gint min_neighbors;
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gint flags;
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gint min_size_width;
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gint min_size_height;
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gint min_stddev;
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gint updates;
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IplImage *cvGray;
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CvHaarClassifierCascade *cvFaceDetect;
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CvHaarClassifierCascade *cvNoseDetect;
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CvHaarClassifierCascade *cvMouthDetect;
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CvHaarClassifierCascade *cvEyesDetect;
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CvMemStorage *cvStorage;
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};
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struct _GstFaceDetectClass
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{
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GstOpencvVideoFilterClass parent_class;
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};
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GType gst_face_detect_get_type (void);
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gboolean gst_face_detect_plugin_init (GstPlugin * plugin);
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G_END_DECLS
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#endif /* __GST_FACE_DETECT_H__ */
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