opencv 将图像平滑处理--灰阶转换--腐蚀--膨胀

#include "stdafx.h"
#include "cv.h"
#include "cxcore.h"
#include "highgui.h"

void main()
{
  IplImage* pImg = cvLoadImage( "d:\\H2.jpg" ); 
  IplImage* psmooth = psmooth = cvCreateImage( cvSize( pImg -> width, pImg -> height ), IPL_DEPTH_8U, 3 );
  IplImage* pgrayscale = pgrayscale = cvCreateImage( cvSize( pImg -> width, pImg -> height ), IPL_DEPTH_8U, 1 );
  IplImage* pdilation = pdilation = cvCreateImage( cvGetSize(pImg), IPL_DEPTH_8U, 1 );
  IplImage* perosion = perosion = cvCreateImage( cvGetSize(pImg), IPL_DEPTH_8U, 1 );

  cvSmooth( pImg, psmooth, CV_MEDIAN, 3, 0, 0, 0 );  
  cvCvtColor( psmooth, pgrayscale, CV_RGB2GRAY );
  cvErode( pgrayscale, perosion, 0, 15 ); //erosion(3*3 kernel) 腐蚀15次
  cvDilate( perosion, pdilation, 0, 15 ); //dilation (3*3 kernel) 在腐蚀过的基础上膨胀15次
  
  cvShowImage( "pImg", pImg );
  cvShowImage( "smooth", psmooth );
  cvShowImage( "grayscale", pgrayscale );
  cvShowImage( "erode", perosion );
  cvShowImage( "dilate", pdilation );
  
  cvReleaseImage( &pImg );
  cvReleaseImage( &psmooth );
  cvReleaseImage( &pgrayscale );
  cvReleaseImage( &perosion ); 
  cvReleaseImage( &pdilation );
  cvWaitKey( 0 );