C++实现中值滤波源代码详解

//中值滤波和均值滤波   
#include<cv.h>   
#include<highgui.h>   
  
int main(){  
    IplImage * image,*image2,*image3;  
    image = cvLoadImage("E:\\image\\Dart.bmp",0);//以灰度图像的形式读入图片   
    cvNamedWindow("image",CV_WINDOW_AUTOSIZE);  
    cvNamedWindow("image2",CV_WINDOW_AUTOSIZE);  
    cvNamedWindow("image3",CV_WINDOW_AUTOSIZE);  
    //cvSaveImage("E:\\image\\moon.jpg",image,0);   
    cvShowImage("image",image);  
    //cvWaitKey(0);   
    unsigned char * ptr,*dst;  
    int i,j,m,n,sum,temp,r,s;  
    image2 = cvCreateImage(cvGetSize(image),image->depth,1);  
    image3 = cvCreateImage(cvGetSize(image),image->depth,1);  
    //模板1 均值    
    int tem[9] = {1,1,1,1,1,1,1,1,1};   
    //也可以使用改进的高斯模板，但是效果相近    
    int tem2[9] = {0};//获取中值时用于排序   
  
    //均值滤波3*3模板的均值   
    for( i = 0 ; i < image->height;i++){  
        for( j = 0; j< image->width;j++){  
              
            //边界处理   
            if(i == 0 || i == image->height || j == 0 || j == image->width){  
                ptr = (unsigned char *)image->imageData + i*image->widthStep + j;  
                dst = (unsigned char *)image2->imageData+ i*image2->widthStep+ j;