OpenCv Some Tests

#include "opencv2/imgproc/imgproc.hpp"
#include "opencv2/highgui/highgui.hpp"
#include <opencv2/video/background_segm.hpp>
using namespace std;
using namespace cv;

/**  @function Erosion  */
Mat erosion(Mat &src, int erosion_elem)
{
  Mat erosion_dst;
  int erosion_type;
  int erosion_size = 3;
  if( erosion_elem == 0 ){ erosion_type = MORPH_RECT; }
  else if( erosion_elem == 1 ){ erosion_type = MORPH_CROSS; }
  else if( erosion_elem == 2) { erosion_type = MORPH_ELLIPSE; }

  Mat element = getStructuringElement( erosion_type,
                                       Size( 2*erosion_size + 1, 2*erosion_size+1 ),
                                       Point( erosion_size, erosion_size ) );
  /// Apply the erosion operation
  erode( src, erosion_dst, element );
  //imshow( "Erosion Demo", erosion_dst );

  return erosion_dst;
}

/** @function Dilation */

Mat dilation(Mat &src, int dilation_elem)
{
  Mat dilation_dst;
  int dilation_type;
  int dilation_size = 3;
  if( dilation_elem == 0 ){ dilation_type = MORPH_RECT; }
  else if( dilation_elem == 1 ){ dilation_type = MORPH_CROSS; }
  else if( dilation_elem == 2) { dilation_type = MORPH_ELLIPSE; }

  Mat element = getStructuringElement( dilation_type,
                                       Size( 2*dilation_size + 1, 2*dilation_size+1 ),
                                       Point( dilation_size, dilation_size ) );
  /// Apply the dilation operation
  dilate( src, dilation_dst, element );

  return dilation_dst;
}

Mat open(Mat &src)
{
  Mat aux = erosion(src,0);
  Mat open_dst = dilation(aux,0);
  //imshow( "Open", open_dst );

  return open_dst;
}



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

 Mat frame; //current frame
 Mat resizeF;
 Mat fgMaskMOG; //fg mask generated by MOG method
 Mat fgMaskMOG2; //fg mask fg mask generated by MOG2 method
 Mat fgMaskGMG; //fg mask fg mask generated by MOG2 method

 Ptr< BackgroundSubtractor> pMOG; //MOG Background subtractor
 Ptr< BackgroundSubtractor> pMOG2; //MOG2 Background subtractor
 Ptr< BackgroundSubtractorGMG> pGMG; //MOG2 Background subtractor



 pMOG = new BackgroundSubtractorMOG();
 pMOG2 = new BackgroundSubtractorMOG2();
 pGMG = new BackgroundSubtractorGMG();


 VideoCapture stream1(argv[1]);

 Mat element = getStructuringElement(MORPH_RECT, Size(3, 3), Point(1,1) );

 //unconditional loop
 while (true) {
  Mat cameraFrame;
  if(!(stream1.read(frame))) //get one frame form video
   break;


  resize(frame, resizeF, Size(frame.size().width/2, frame.size().height/2) );
  pMOG->operator()(resizeF, fgMaskMOG);
  pMOG2->operator()(resizeF, fgMaskMOG2);
  pGMG->operator()(resizeF, fgMaskGMG);
  //*/
  //morphologyEx(fgMaskGMG, fgMaskGMG, CV_MOP_OPEN, element);




  imshow("Origin", resizeF);
  imshow("MOG", fgMaskMOG);
  imshow("MOG2", fgMaskMOG2);
  imshow("GMG", fgMaskGMG);


  if (waitKey(30) >= 0)
   break;
 }



    /*
    VideoCapture cap(0);
    //MOG(newFrame, foregroundMask);
    backgroundSubtractor = new BackgroundSubtractorMOG(3, 4, 0.8);
    if(!cap.isOpened())
        return -1;

    Mat edges, dil, erod, op, clo;
    namedWindow("Dif", 1);
    namedWindow("Frame",1);
    Mat frame1;
    cap >> frame1;
    /// Apply Histogram Equalization
    double alpha = 2.2;
    int beta = 50;
    while(1)
    {
        Mat frame, teste;
        cap >> frame;
    */
        //frame.convertTo(frame, -1, alpha, beta);
        //frame1 = frame - frame1;
        /*
        cvtColor(frame,edges, CV_BGR2GRAY);
        erod = erosion(frame,0);
        imshow("erodion", erod);
        dil = dilation(frame,0);
        imshow( "dilation", dil );
        op = open(frame);
        imshow( "open", dil );
        */
        //GaussianBlur(edges,edges,Size(7,7),1.5,1.5);
        //Canny(edges,edges,0,30,3);
        //imshow("Dif", frame1);
//      imshow("Frame",frame);
        //frame1 = frame;
//      if(waitKey(30) >= 0) break;
//  }

    return 0;
}