gstreamer/ext/opencv/gstfacedetect.h
Nicola Murino 3a0a4a8d70 facedetect: Add new property min-stddev
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
2014-09-05 10:38:32 +03:00

127 lines
4.5 KiB
C

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