get_background.cpp

/* get_background.cpp
 * a program to average a video to produce the background for ped counting
 
 * Brian J Gravelle
 * ix.cs.uoregon.edu/~gravelle
 * gravelle@cs.uoregon.edu

 * Apparently this is something I'm supposed to do:
 * 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.

 * If by some miracle you find this software useful, thanks are accepted in
 * the form of chocolate or introductions to potential employers.

 */

#include <opencv/cv.hpp>
//#include <opencv/highgui.h>
#include <stdio.h>
#include <iostream>
#include <stdlib.h>
#include "useful_functions.h"

using namespace std;
using namespace cv;

void show_help();

int main(int argc, char** argv){

	Mat avg_frame;

  if(argc < 3) 
	  show_help();

	string vid_name = argv[1];
	string img_name = argv[2];

	get_background(vid_name, avg_frame);
	imwrite(img_name, avg_frame);

	return 0;
}

void show_help() {
  cout << endl << 
  " Usage: ./get_background.out <input videoname> <output image name>\n"
  " examples:\n"
  " ./get_background.out /home/pi/videos/my_vid.h264 my_background.jpg\n"
  << endl << endl;
  exit(1); 
}