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602 lines
21 KiB
C++
602 lines
21 KiB
C++
/*
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* GStreamer
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* Copyright (C) 2011 Robert Jobbagy <jobbagy.robert@gmail.com>
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* Copyright (C) 2011 Nicola Murino <nicola.murino@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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/* This breaks the build for reasons that aren't entirely clear to me yet */
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#if 0
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//#ifdef HAVE_CONFIG_H
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//#include "config.h"
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//#endif
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#endif
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#include <cstdlib>
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#include <errno.h>
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#include <math.h>
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#include <gst/gst.h>
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#include <arpa/inet.h>
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#include "MotionCells.h"
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uint64_t ntohl64 (uint64_t val);
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uint64_t htonl64 (uint64_t val);
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uint64_t
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ntohl64 (uint64_t val)
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{
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uint64_t res64;
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uint32_t low = (uint32_t) (val & 0x00000000FFFFFFFFLL);
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uint32_t high = (uint32_t) ((val & 0xFFFFFFFF00000000LL) >> 32);
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low = ntohl (low);
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high = ntohl (high);
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res64 = (uint64_t) high + (((uint64_t) low) << 32);
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return res64;
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}
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uint64_t
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htonl64 (uint64_t val)
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{
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uint64_t res64;
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uint32_t low = (uint32_t) (val & 0x00000000FFFFFFFFLL);
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uint32_t high = (uint32_t) ((val & 0xFFFFFFFF00000000LL) >> 32);
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low = htonl (low);
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high = htonl (high);
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res64 = (uint64_t) high + (((uint64_t) low) << 32);
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return res64;
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}
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MotionCells::MotionCells ()
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{
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m_framecnt = 0;
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m_motioncells_idx_count = 0;
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m_motioncellsidxcstr = NULL;
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m_saveInDatafile = false;
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mc_savefile = NULL;
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m_pcurFrame = NULL;
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m_pprevFrame = NULL;
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transparencyimg = NULL;
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m_pdifferenceImage = NULL;
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m_pbwImage = NULL;
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m_initdatafilefailed = new char[BUSMSGLEN];
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m_savedatafilefailed = new char[BUSMSGLEN];
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m_initerrorcode = 0;
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m_saveerrorcode = 0;
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m_alpha = 0.5;
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m_beta = 0.5;
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m_useAlpha = false;
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m_isVisible = false;
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}
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MotionCells::~MotionCells ()
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{
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if (mc_savefile) {
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fclose (mc_savefile);
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mc_savefile = NULL;
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}
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delete[]m_initdatafilefailed;
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delete[]m_savedatafilefailed;
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if (m_motioncellsidxcstr)
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delete[]m_motioncellsidxcstr;
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if (m_pcurFrame)
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cvReleaseImage (&m_pcurFrame);
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if (m_pprevFrame)
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cvReleaseImage (&m_pprevFrame);
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if (transparencyimg)
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cvReleaseImage (&transparencyimg);
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if (m_pdifferenceImage)
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cvReleaseImage (&m_pdifferenceImage);
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if (m_pbwImage)
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cvReleaseImage (&m_pbwImage);
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}
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int
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MotionCells::performDetectionMotionCells (IplImage * p_frame,
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double p_sensitivity, double p_framerate, int p_gridx, int p_gridy,
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gint64 timestamp_millisec, bool p_isVisible, bool p_useAlpha,
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int motionmaskcoord_count, motionmaskcoordrect * motionmaskcoords,
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int motionmaskcells_count, motioncellidx * motionmaskcellsidx,
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cellscolor motioncellscolor, int motioncells_count,
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motioncellidx * motioncellsidx, gint64 starttime, char *p_datafile,
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bool p_changed_datafile, int p_thickness)
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{
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int sumframecnt = 0;
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int ret = 0;
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p_framerate >= 1 ? p_framerate <= 5 ? sumframecnt = 1
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: p_framerate <= 10 ? sumframecnt = 2
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: p_framerate <= 15 ? sumframecnt = 3
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: p_framerate <= 20 ? sumframecnt = 4
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: p_framerate <= 25 ? sumframecnt = 5 : sumframecnt = 0 : sumframecnt = 0;
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m_framecnt++;
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m_changed_datafile = p_changed_datafile;
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if (m_framecnt >= sumframecnt) {
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m_useAlpha = p_useAlpha;
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m_gridx = p_gridx;
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m_gridy = p_gridy;
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if (m_changed_datafile) {
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ret = initDataFile (p_datafile, starttime);
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if (ret != 0)
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return ret;
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}
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m_frameSize = cvGetSize (p_frame);
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m_frameSize.width /= 2;
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m_frameSize.height /= 2;
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setMotionCells (m_frameSize.width, m_frameSize.height);
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m_sensitivity = 1 - p_sensitivity;
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m_isVisible = p_isVisible;
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m_pcurFrame = cvCloneImage (p_frame);
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IplImage *m_pcurgreyImage = cvCreateImage (m_frameSize, IPL_DEPTH_8U, 1);
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IplImage *m_pprevgreyImage = cvCreateImage (m_frameSize, IPL_DEPTH_8U, 1);
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IplImage *m_pgreyImage = cvCreateImage (m_frameSize, IPL_DEPTH_8U, 1);
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IplImage *m_pcurDown =
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cvCreateImage (m_frameSize, m_pcurFrame->depth, m_pcurFrame->nChannels);
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IplImage *m_pprevDown = cvCreateImage (m_frameSize, m_pprevFrame->depth,
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m_pprevFrame->nChannels);
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m_pbwImage = cvCreateImage (m_frameSize, IPL_DEPTH_8U, 1);
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cvPyrDown (m_pprevFrame, m_pprevDown);
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cvCvtColor (m_pprevDown, m_pprevgreyImage, CV_RGB2GRAY);
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cvPyrDown (m_pcurFrame, m_pcurDown);
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cvCvtColor (m_pcurDown, m_pcurgreyImage, CV_RGB2GRAY);
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m_pdifferenceImage = cvCloneImage (m_pcurgreyImage);
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//cvSmooth(m_pcurgreyImage, m_pcurgreyImage, CV_GAUSSIAN, 3, 0);//TODO camera noise reduce,something smoothing, and rethink runningavg weights
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//Minus the current gray frame from the 8U moving average.
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cvAbsDiff (m_pprevgreyImage, m_pcurgreyImage, m_pdifferenceImage);
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//Convert the image to black and white.
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cvAdaptiveThreshold (m_pdifferenceImage, m_pbwImage, 255,
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CV_ADAPTIVE_THRESH_GAUSSIAN_C, CV_THRESH_BINARY_INV, 7);
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// Dilate and erode to get object blobs
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cvDilate (m_pbwImage, m_pbwImage, NULL, 2);
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cvErode (m_pbwImage, m_pbwImage, NULL, 2);
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//mask-out the overlay on difference image
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if (motionmaskcoord_count > 0)
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performMotionMaskCoords (motionmaskcoords, motionmaskcoord_count);
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if (motionmaskcells_count > 0)
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performMotionMask (motionmaskcellsidx, motionmaskcells_count);
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if (getIsNonZero (m_pbwImage)) { //detect Motion
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GST_DEBUG ("DETECT MOTION \n");
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if (m_MotionCells.size () > 0) //it contains previous motioncells what we used when frames dropped
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m_MotionCells.clear ();
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if (transparencyimg)
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cvReleaseImage (&transparencyimg);
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(motioncells_count > 0) ?
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calculateMotionPercentInMotionCells (motioncellsidx,
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motioncells_count)
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: calculateMotionPercentInMotionCells (motionmaskcellsidx, 0);
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transparencyimg = cvCreateImage (cvGetSize (p_frame), p_frame->depth, 3);
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cvSetZero (transparencyimg);
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if (m_motioncellsidxcstr)
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delete[]m_motioncellsidxcstr;
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m_motioncells_idx_count = m_MotionCells.size () * MSGLEN; //one motion cell idx: (lin idx : col idx,) it's 4 character except last motion cell idx
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m_motioncellsidxcstr = new char[m_motioncells_idx_count];
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char *tmpstr = new char[MSGLEN];
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for (int i = 0; i < MSGLEN; i++)
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tmpstr[i] = ' ';
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for (unsigned int i = 0; i < m_MotionCells.size (); i++) {
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CvPoint pt1, pt2;
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pt1.x = m_MotionCells.at (i).cell_pt1.x * 2;
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pt1.y = m_MotionCells.at (i).cell_pt1.y * 2;
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pt2.x = m_MotionCells.at (i).cell_pt2.x * 2;
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pt2.y = m_MotionCells.at (i).cell_pt2.y * 2;
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if (m_useAlpha && m_isVisible) {
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cvRectangle (transparencyimg,
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pt1,
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pt2,
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CV_RGB (motioncellscolor.B_channel_value,
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motioncellscolor.G_channel_value,
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motioncellscolor.R_channel_value), CV_FILLED);
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} else if (m_isVisible) {
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cvRectangle (p_frame,
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pt1,
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pt2,
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CV_RGB (motioncellscolor.B_channel_value,
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motioncellscolor.G_channel_value,
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motioncellscolor.R_channel_value), p_thickness);
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}
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if (i < m_MotionCells.size () - 1) {
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snprintf (tmpstr, MSGLEN, "%d:%d,", m_MotionCells.at (i).lineidx,
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m_MotionCells.at (i).colidx);
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} else {
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snprintf (tmpstr, MSGLEN, "%d:%d", m_MotionCells.at (i).lineidx,
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m_MotionCells.at (i).colidx);
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}
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if (i == 0)
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strncpy (m_motioncellsidxcstr, tmpstr, m_motioncells_idx_count);
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else
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strcat (m_motioncellsidxcstr, tmpstr);
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}
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if (m_MotionCells.size () == 0)
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strncpy (m_motioncellsidxcstr, " ", m_motioncells_idx_count);
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if (m_useAlpha && m_isVisible) {
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if (m_MotionCells.size () > 0)
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blendImages (p_frame, transparencyimg, m_alpha, m_beta);
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}
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delete[]tmpstr;
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if (mc_savefile && m_saveInDatafile) {
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ret = saveMotionCells (timestamp_millisec);
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if (ret != 0)
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return ret;
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}
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} else {
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m_motioncells_idx_count = 0;
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if (m_MotionCells.size () > 0)
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m_MotionCells.clear ();
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if (transparencyimg)
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cvReleaseImage (&transparencyimg);
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}
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if (m_pprevFrame)
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cvReleaseImage (&m_pprevFrame);
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m_pprevFrame = cvCloneImage (m_pcurFrame);
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m_framecnt = 0;
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if (m_pcurFrame)
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cvReleaseImage (&m_pcurFrame);
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if (m_pdifferenceImage)
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cvReleaseImage (&m_pdifferenceImage);
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if (m_pcurgreyImage)
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cvReleaseImage (&m_pcurgreyImage);
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if (m_pprevgreyImage)
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cvReleaseImage (&m_pprevgreyImage);
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if (m_pgreyImage)
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cvReleaseImage (&m_pgreyImage);
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if (m_pbwImage)
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cvReleaseImage (&m_pbwImage);
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if (m_pprevDown)
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cvReleaseImage (&m_pprevDown);
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if (m_pcurDown)
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cvReleaseImage (&m_pcurDown);
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if (m_pCells) {
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for (int i = 0; i < m_gridy; ++i) {
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delete[]m_pCells[i];
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}
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delete[]m_pCells;
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}
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if (p_framerate <= 5) {
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if (m_MotionCells.size () > 0)
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m_MotionCells.clear ();
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if (transparencyimg)
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cvReleaseImage (&transparencyimg);
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}
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} else { //we do frame drop
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m_motioncells_idx_count = 0;
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ret = -2;
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for (unsigned int i = 0; i < m_MotionCells.size (); i++) {
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CvPoint pt1, pt2;
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pt1.x = m_MotionCells.at (i).cell_pt1.x * 2;
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pt1.y = m_MotionCells.at (i).cell_pt1.y * 2;
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pt2.x = m_MotionCells.at (i).cell_pt2.x * 2;
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pt2.y = m_MotionCells.at (i).cell_pt2.y * 2;
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if (m_useAlpha && m_isVisible) {
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cvRectangle (transparencyimg,
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pt1,
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pt2,
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CV_RGB (motioncellscolor.B_channel_value,
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motioncellscolor.G_channel_value,
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motioncellscolor.R_channel_value), CV_FILLED);
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} else if (m_isVisible) {
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cvRectangle (p_frame,
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pt1,
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pt2,
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CV_RGB (motioncellscolor.B_channel_value,
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motioncellscolor.G_channel_value,
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motioncellscolor.R_channel_value), p_thickness);
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}
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}
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if (m_useAlpha && m_isVisible) {
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if (m_MotionCells.size () > 0)
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blendImages (p_frame, transparencyimg, m_alpha, m_beta);
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}
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}
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return ret;
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}
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int
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MotionCells::initDataFile (char *p_datafile, gint64 starttime) //p_date is increased with difference between current and previous buffer ts
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{
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MotionCellData mcd;
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if (strncmp (p_datafile, " ", 1)) {
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mc_savefile = fopen (p_datafile, "w");
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if (mc_savefile == NULL) {
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//fprintf(stderr, "%s %d:initDataFile:fopen:%d (%s)\n", __FILE__, __LINE__, errno,
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//strerror(errno));
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strncpy (m_initdatafilefailed, strerror (errno), BUSMSGLEN - 1);
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m_initerrorcode = errno;
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return 1;
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} else {
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m_saveInDatafile = true;
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}
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} else
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mc_savefile = NULL;
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bzero (&m_header, sizeof (MotionCellHeader));
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m_header.headersize = htonl (MC_HEADER);
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m_header.type = htonl (MC_TYPE);
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m_header.version = htonl (MC_VERSION);
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//it needs these bytes
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m_header.itemsize =
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htonl ((int) ceil (ceil (m_gridx * m_gridy / 8.0) / 4.0) * 4 +
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sizeof (mcd.timestamp));
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m_header.gridx = htonl (m_gridx);
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m_header.gridy = htonl (m_gridy);
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m_header.starttime = htonl64 (starttime);
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snprintf (m_header.name, sizeof (m_header.name), "%s %dx%d", MC_VERSIONTEXT,
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ntohl (m_header.gridx), ntohl (m_header.gridy));
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m_changed_datafile = false;
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return 0;
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}
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int
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MotionCells::saveMotionCells (gint64 timestamp_millisec)
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{
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MotionCellData mc_data;
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mc_data.timestamp = htonl (timestamp_millisec);
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mc_data.data = NULL;
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//There is no datafile
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if (mc_savefile == NULL)
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return 0;
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if (ftello (mc_savefile) == 0) {
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//cerr << "Writing out file header"<< m_header.headersize <<":" << sizeof(MotionCellHeader) << " itemsize:"
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//<< m_header.itemsize << endl;
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if (fwrite (&m_header, sizeof (MotionCellHeader), 1, mc_savefile) != 1) {
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//fprintf(stderr, "%s %d:saveMotionCells:fwrite:%d (%s)\n", __FILE__, __LINE__, errno,
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//strerror(errno));
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strncpy (m_savedatafilefailed, strerror (errno), BUSMSGLEN - 1);
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m_saveerrorcode = errno;
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return -1;
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}
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}
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mc_data.data =
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(char *) calloc (1,
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ntohl (m_header.itemsize) - sizeof (mc_data.timestamp));
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if (mc_data.data == NULL) {
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//fprintf(stderr, "%s %d:saveMotionCells:calloc:%d (%s)\n", __FILE__, __LINE__, errno,
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//strerror(errno));
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strncpy (m_savedatafilefailed, strerror (errno), BUSMSGLEN - 1);
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m_saveerrorcode = errno;
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return -1;
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}
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for (unsigned int i = 0; i < m_MotionCells.size (); i++) {
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int bitnum =
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m_MotionCells.at (i).lineidx * ntohl (m_header.gridx) +
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m_MotionCells.at (i).colidx;
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int bytenum = (int) floor (bitnum / 8.0);
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int shift = bitnum - bytenum * 8;
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mc_data.data[bytenum] = mc_data.data[bytenum] | (1 << shift);
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//cerr << "Motion Detected " << "line:" << m_MotionCells.at(i).lineidx << " col:" << m_MotionCells.at(i).colidx;
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//cerr << " bitnum " << bitnum << " bytenum " << bytenum << " shift " << shift << " value " << (int)mc_data.data[bytenum] << endl;
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}
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if (fwrite (&mc_data.timestamp, sizeof (mc_data.timestamp), 1,
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mc_savefile) != 1) {
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//fprintf(stderr, "%s %d:saveMotionCells:fwrite:%d (%s)\n", __FILE__, __LINE__, errno,
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//strerror(errno));
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strncpy (m_savedatafilefailed, strerror (errno), BUSMSGLEN - 1);
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m_saveerrorcode = errno;
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return -1;
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}
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if (fwrite (mc_data.data,
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ntohl (m_header.itemsize) - sizeof (mc_data.timestamp), 1,
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mc_savefile) != 1) {
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//fprintf(stderr, "%s %d:saveMotionCells:fwrite:%d (%s)\n", __FILE__, __LINE__, errno,
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|
//strerror(errno));
|
|
strncpy (m_savedatafilefailed, strerror (errno), BUSMSGLEN - 1);
|
|
m_saveerrorcode = errno;
|
|
return -1;
|
|
}
|
|
|
|
free (mc_data.data);
|
|
return 0;
|
|
}
|
|
|
|
double
|
|
MotionCells::calculateMotionPercentInCell (int p_row, int p_col,
|
|
double *p_cellarea, double *p_motionarea)
|
|
{
|
|
double cntpixelsnum = 0;
|
|
double cntmotionpixelnum = 0;
|
|
|
|
int ybegin = floor ((double) p_row * m_cellheight);
|
|
int yend = floor ((double) (p_row + 1) * m_cellheight);
|
|
int xbegin = floor ((double) (p_col) * m_cellwidth);
|
|
int xend = floor ((double) (p_col + 1) * m_cellwidth);
|
|
int cellw = xend - xbegin;
|
|
int cellh = yend - ybegin;
|
|
int cellarea = cellw * cellh;
|
|
*p_cellarea = cellarea;
|
|
int thresholdmotionpixelnum = floor ((double) cellarea * m_sensitivity);
|
|
|
|
for (int i = ybegin; i < yend; i++) {
|
|
for (int j = xbegin; j < xend; j++) {
|
|
cntpixelsnum++;
|
|
if ((((uchar *) (m_pbwImage->imageData + m_pbwImage->widthStep * i))[j]) >
|
|
0) {
|
|
cntmotionpixelnum++;
|
|
if (cntmotionpixelnum >= thresholdmotionpixelnum) { //we dont needs calculate anymore
|
|
*p_motionarea = cntmotionpixelnum;
|
|
return (cntmotionpixelnum / cntpixelsnum);
|
|
}
|
|
}
|
|
int remainingpixelsnum = cellarea - cntpixelsnum;
|
|
if ((cntmotionpixelnum + remainingpixelsnum) < thresholdmotionpixelnum) { //moving pixels number will be less than threshold
|
|
*p_motionarea = 0;
|
|
return 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
return (cntmotionpixelnum / cntpixelsnum);
|
|
}
|
|
|
|
void
|
|
MotionCells::calculateMotionPercentInMotionCells (motioncellidx *
|
|
p_motioncellsidx, int p_motioncells_count)
|
|
{
|
|
if (p_motioncells_count == 0) {
|
|
for (int i = 0; i < m_gridy; i++) {
|
|
for (int j = 0; j < m_gridx; j++) {
|
|
m_pCells[i][j].MotionPercent = calculateMotionPercentInCell (i, j,
|
|
&m_pCells[i][j].CellArea, &m_pCells[i][j].MotionArea);
|
|
m_pCells[i][j].hasMotion =
|
|
m_sensitivity < m_pCells[i][j].MotionPercent ? true : false;
|
|
if (m_pCells[i][j].hasMotion) {
|
|
MotionCellsIdx mci;
|
|
mci.lineidx = i;
|
|
mci.colidx = j;
|
|
mci.cell_pt1.x = floor ((double) j * m_cellwidth);
|
|
mci.cell_pt1.y = floor ((double) i * m_cellheight);
|
|
mci.cell_pt2.x = floor ((double) (j + 1) * m_cellwidth);
|
|
mci.cell_pt2.y = floor ((double) (i + 1) * m_cellheight);
|
|
int w = mci.cell_pt2.x - mci.cell_pt1.x;
|
|
int h = mci.cell_pt2.y - mci.cell_pt1.y;
|
|
mci.motioncell = cvRect (mci.cell_pt1.x, mci.cell_pt1.y, w, h);
|
|
m_MotionCells.push_back (mci);
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
for (int k = 0; k < p_motioncells_count; ++k) {
|
|
|
|
int i = p_motioncellsidx[k].lineidx;
|
|
int j = p_motioncellsidx[k].columnidx;
|
|
m_pCells[i][j].MotionPercent =
|
|
calculateMotionPercentInCell (i, j,
|
|
&m_pCells[i][j].CellArea, &m_pCells[i][j].MotionArea);
|
|
m_pCells[i][j].hasMotion =
|
|
m_pCells[i][j].MotionPercent > m_sensitivity ? true : false;
|
|
if (m_pCells[i][j].hasMotion) {
|
|
MotionCellsIdx mci;
|
|
mci.lineidx = p_motioncellsidx[k].lineidx;
|
|
mci.colidx = p_motioncellsidx[k].columnidx;
|
|
mci.cell_pt1.x = floor ((double) j * m_cellwidth);
|
|
mci.cell_pt1.y = floor ((double) i * m_cellheight);
|
|
mci.cell_pt2.x = floor ((double) (j + 1) * m_cellwidth);
|
|
mci.cell_pt2.y = floor ((double) (i + 1) * m_cellheight);
|
|
int w = mci.cell_pt2.x - mci.cell_pt1.x;
|
|
int h = mci.cell_pt2.y - mci.cell_pt1.y;
|
|
mci.motioncell = cvRect (mci.cell_pt1.x, mci.cell_pt1.y, w, h);
|
|
m_MotionCells.push_back (mci);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
MotionCells::performMotionMaskCoords (motionmaskcoordrect * p_motionmaskcoords,
|
|
int p_motionmaskcoords_count)
|
|
{
|
|
CvPoint upperleft;
|
|
upperleft.x = 0;
|
|
upperleft.y = 0;
|
|
CvPoint lowerright;
|
|
lowerright.x = 0;
|
|
lowerright.y = 0;
|
|
for (int i = 0; i < p_motionmaskcoords_count; i++) {
|
|
upperleft.x = p_motionmaskcoords[i].upper_left_x;
|
|
upperleft.y = p_motionmaskcoords[i].upper_left_y;
|
|
lowerright.x = p_motionmaskcoords[i].lower_right_x;
|
|
lowerright.y = p_motionmaskcoords[i].lower_right_y;
|
|
cvRectangle (m_pbwImage, upperleft, lowerright, CV_RGB (0, 0, 0),
|
|
CV_FILLED);
|
|
}
|
|
}
|
|
|
|
void
|
|
MotionCells::performMotionMask (motioncellidx * p_motionmaskcellsidx,
|
|
int p_motionmaskcells_count)
|
|
{
|
|
for (int k = 0; k < p_motionmaskcells_count; k++) {
|
|
int beginy = p_motionmaskcellsidx[k].lineidx * m_cellheight;
|
|
int beginx = p_motionmaskcellsidx[k].columnidx * m_cellwidth;
|
|
int endx =
|
|
(double) p_motionmaskcellsidx[k].columnidx * m_cellwidth + m_cellwidth;
|
|
int endy =
|
|
(double) p_motionmaskcellsidx[k].lineidx * m_cellheight + m_cellheight;
|
|
for (int i = beginy; i < endy; i++)
|
|
for (int j = beginx; j < endx; j++) {
|
|
((uchar *) (m_pbwImage->imageData + m_pbwImage->widthStep * i))[j] = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
///BGR if we use only OpenCV
|
|
//RGB if we use gst+OpenCV
|
|
void
|
|
MotionCells::blendImages (IplImage * p_actFrame, IplImage * p_cellsFrame,
|
|
float p_alpha, float p_beta)
|
|
{
|
|
|
|
int height = p_actFrame->height;
|
|
int width = p_actFrame->width;
|
|
int step = p_actFrame->widthStep / sizeof (uchar);
|
|
int channels = p_actFrame->nChannels;
|
|
int cellstep = p_cellsFrame->widthStep / sizeof (uchar);
|
|
uchar *curImageData = (uchar *) p_actFrame->imageData;
|
|
uchar *cellImageData = (uchar *) p_cellsFrame->imageData;
|
|
|
|
for (int i = 0; i < height; i++)
|
|
for (int j = 0; j < width; j++)
|
|
for (int k = 0; k < channels; k++)
|
|
if (cellImageData[i * cellstep + j * channels + k] > 0) {
|
|
curImageData[i * step + j * channels + k] =
|
|
round ((double) curImageData[i * step + j * channels +
|
|
k] * p_alpha + ((double) cellImageData[i * cellstep +
|
|
j * channels + k] * p_beta));
|
|
}
|
|
}
|