[OpenCV]: use cvPyrSegmentation

#include <stdio.h>
#include <cv.h>
#include <highgui.h>
#include <stdio.h>

void f( 
  IplImage* src, 
  IplImage* dst 
) {
  CvMemStorage* storage = cvCreateMemStorage(0);
  CvSeq* comp = NULL;

  cvPyrSegmentation( src, dst, storage, &comp, 4, 200, 50 );
  int n_comp = comp->total;

  for( int i=0; i<n_comp; i++ ) {
    CvConnectedComp* cc = (CvConnectedComp*) cvGetSeqElem( comp, i );
    // do_something_with( cc );
  }
  cvReleaseMemStorage( &storage );
}

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

  // Create a named window with a the name of the file.
  cvNamedWindow( argv[1], 1 );
  // Load the image from the given file name.
  IplImage* src = cvLoadImage( argv[1] );
  if(!src) { printf("Couldn't seem to Open %s, sorry\n",argv[1]); return -1;}
  IplImage* dst = cvCreateImage( cvGetSize(src), src->depth, src->nChannels);
  f( src, dst);

  // Show the image in the named window
  cvShowImage( argv[1], dst );

  // Idle until the user hits the "Esc" key.
  while( 1 ) { if( cvWaitKey( 100 ) == 27 ) break; }

  // Clean up and don’t be piggies
  cvDestroyWindow( argv[1] );
  cvReleaseImage( &src );
  cvReleaseImage( &dst );
}

code from 'learning opencv' book