VC6.0图形处理10--腐蚀膨胀

快来打我* 2022-06-18 02:53 142阅读 0赞

void CBMPViewerDoc::OnMenuitem32799() //图像的腐蚀  
\{  
  
  
//自定义3\*3的矩阵作为检验的结构  
// TODO: Add your command handler code here  
  
  
int linewidth;  
linewidth=(pbi->bmiHeader.biWidth\*pbi->bmiHeader.biBitCount+31)/32\*4;  
  
  
unsigned char \*lpDest;  
unsigned char \*lpScr;  
  
  
  
HLOCAL hTemp;  
hTemp = LocalAlloc(LHND ,linewidth \* bi.biHeight );  
  
LPSTR lpTemp;  
lpTemp = (char\*)LocalLock(hTemp);//以上四句分配一块与源图像数据大小一致的内存块，并返回指针lpTemp  
//暂时存储新建的图片数据，完成后，将数据copy给原数据区  
  
int pixel;  
// TODO: Add your command handler code here  
for(int i = 0 ; i< bi.biHeight ; i++)  
\{  
for(int j = 0 ; j< bi.biWidth ; j++)  
\{  
    lpDest = (unsigned  char \*)lpTemp+linewidth\*(bi.biHeight - i -1 ) + j ;  
if((i == 0 ) || (j ==0) || (i == bi.biHeight) || (j == bi.biWidth) )\{  
lpScr = (unsigned char\*)lpBuf + linewidth\*(bi.biHeight - i -1) + j;  
\*lpDest = \*lpScr;  
\}   
  
  
  
else  
\{   
  
//lpDest = (unsigned  char \*)lpTemp+linewidth\*(bi.biHeight - i -1 ) + j ;  
\*lpDest = 0;  
  
for(int s = -1 ; s<=1; s++)  
\{  
for(int t = -1; t <= 1;t++)  
\{  
lpScr = (unsigned char \*)lpBuf + linewidth\*(bi.biHeight - i-1 + s) + j + t;  
                
pixel = \*lpScr;  
if(pixel == 255)  
\{  
  
  
\*lpDest = 255;  
\}  
  
  
\}  
  
  
\}  
     
  
\}  
  
\}  
  
\}  
  
memcpy(lpBuf , lpTemp, linewidth\*bi.biHeight); //新图像数据copy给源数据  
// Invalidata(TRUE);  
UpdateAllViews(NULL,0,NULL);  
  
\}  
  
  
void CBMPViewerDoc::OnMenuitem32800() //图像的膨胀  
\{  
  
//自定义结构  
// TODO: Add your command handler code here  
  
int linewidth;  
linewidth=(pbi->bmiHeader.biWidth\*pbi->bmiHeader.biBitCount+31)/32\*4;  
  
unsigned char \*lpDest;  
unsigned char \*lpScr;  
  
  
HLOCAL hTemp;  
hTemp = LocalAlloc(LHND ,linewidth \* bi.biHeight );  
  
LPSTR lpTemp;  
lpTemp = (char\*)LocalLock(hTemp);//以上四句分配一块与源图像数据大小一致的内存块，并返回指针lpTemp  
//暂时存储新建的图片数据，完成后，将数据copy给原数据区  
  
int pixel;  
// TODO: Add your command handler code here  
for(int i = 0 ; i< bi.biHeight ; i++)  
\{  
for(int j = 0 ; j< bi.biWidth ; j++)  
\{  
lpDest = (unsigned  char \*)lpTemp+linewidth\*(bi.biHeight - i -1 ) + j ;  
if((i == 0 ) || (j ==0) || (i == bi.biHeight) || (j == bi.biWidth) )\{  
lpScr = (unsigned char\*)lpBuf + linewidth\*(bi.biHeight - i -1) + j;  
\*lpDest = \*lpScr;  
\}   
  
  
else  
\{   
  
//lpDest = (unsigned  char \*)lpTemp+linewidth\*(bi.biHeight - i -1 ) + j ;  
\*lpDest = 255;  
  
  
  
  
for(int s = 0 ; s<=1; s++)  
\{  
for(int t = 0; t <= 1;t++)  
\{  
lpScr = (unsigned char \*)lpBuf + linewidth\*(bi.biHeight - i-1 + s) + j + t;  
  
pixel = \*lpScr;  
if(pixel == 0)  
\{  
\*lpDest = 0;  
\}  
  
\}  
  
\}  
  
  
\}  
  
\}  
  
\}  
  
memcpy(lpBuf , lpTemp, linewidth\*bi.biHeight); //新图像数据copy给源数据  
// Invalidata(TRUE);  
UpdateAllViews(NULL,0,NULL);  
  
\}