学步园

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

IplImage* inpaint_mask = 0;
IplImage* img0 = 0, *img = 0, *inpainted = 0;
CvPoint prev_pt = {-1,-1};

void on_mouse( int event, int x, int y, int flags, void* zhang)
{
  if( !img )
   return;
  if( event == CV_EVENT_LBUTTONUP || !(flags & CV_EVENT_FLAG_LBUTTON) )
    prev_pt = cvPoint(-1,-1);
  else if( event == CV_EVENT_LBUTTONDOWN )
    prev_pt = cvPoint(x,y);
  else if( event == CV_EVENT_MOUSEMOVE && (flags & CV_EVENT_FLAG_LBUTTON) )
  {
    CvPoint pt = cvPoint(x,y);
    if( prev_pt.x < 0 )
    prev_pt = pt;
    cvLine( inpaint_mask, prev_pt, pt, cvScalarAll(255), 5, 8, 0 );
    cvLine( img, prev_pt, pt, cvScalarAll(255), 5, 8, 0 );
    prev_pt = pt;
    cvShowImage( "image", img );
  }
else if(event == CV_EVENT_RBUTTONUP)
    {
        cvFloodFill(maskImg,cvPoint(x,y),cvScalarAll(255));
        cvSaveImage("maskImg.bmp",maskImg);
        IplImage *segImage=cvCreateImage(cvGetSize(img),8,3);;
        cvCopy(img,segImage,maskImg);
        cvSaveImage("segImage.bmp",segImage);
        cvCopy(segImage,proc->img);
        cvReleaseImage(&segImage);
        cvDestroyWindow("Key Image");
    }
}

int main( int argc, char** argv )
{
   char* filename = argc >= 2 ? argv[1] : (char*)"fruits.jpg";
   if( (img0 = cvLoadImage(filename,-1)) == 0 )
     return 0;
   printf( "Hot keys: \n"
   cvNamedWindow( "image", 1 );
   img = cvCloneImage( img0 );
   inpainted = cvCloneImage( img0 );
   inpaint_mask = cvCreateImage( cvGetSize(img), 8, 1 );
   cvZero( inpaint_mask );
   cvZero( inpainted );
   cvShowImage( "image", img );
   cvShowImage( "watershed transform", inpainted );
   cvSetMouseCallback( "image", on_mouse, 0 );   
}