VC6.0图形处理6--图像增强

￡神魔★判官ぃ 2022-06-18 01:40 194阅读 0赞

源码下载：[http://download.csdn.net/detail/renshengrumenglibing/3875522][http_download.csdn.net_detail_renshengrumenglibing_3875522]

//本节包含高斯平滑，中值滤波和锐化三个部分，三者均为模板操作，只是模板不同，算法均相同，希望读者仔细研读其中之一，其他两个自然就明白了

void CBMPViewerDoc::OnMenuitem32790() //高斯平滑  
\{  
// TODO: Add your command handler code here  
//模板1/16\*\[1 2 1 ; 2 ,4 ,2 ; 1, 2,1\]  
int linewidth;  
linewidth=(pbi->bmiHeader.biWidth\*pbi->bmiHeader.biBitCount+31)/32\*4;  
  
  
  
HLOCAL hTemp;  
hTemp = LocalAlloc(LHND ,linewidth \* bi.biHeight );  
  
LPSTR lpTemp;  
lpTemp = (char\*)LocalLock(hTemp);  
unsigned char \*lpScr;  
unsigned char \* lpDest;  
int sum ;  
int Gauss\[9\] = \{1, 2, 1 , 2 ,4 ,2 , 1, 2,1 \};  
// 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\{  
sum = 0 ;  
for(int m = i -1 ; m <= i+1 ;m++)\{  
for(int n = j-1; n<=j+1; n++)\{  
lpScr = (unsigned char\*)lpBuf + linewidth\*(bi.biHeight - m -1) + n;  
sum += (\*lpScr) \* Gauss\[3\*(m - i +1) + n - j +1\];  
\}  
\}  
sum/= 16;  
if((sum >= 0 )&&(sum <= 255))  
\{  
\*lpDest = sum;  
\}  
else if(sum > 255) \*lpDest = 255;  
else \*lpDest= 0;  
  
  
  
  
\}  
\}  
  
\}  
      
memcpy(lpBuf, lpTemp, linewidth \* bi.biHeight);  
//Invalidata(TRUE);  
  
UpdateAllViews(NULL,0,NULL);  
  
  
  
\}  
  
  
  
  
  
  
void CBMPViewerDoc::OnMenuitem32791() //锐化处理  
\{  
//模板1/16\*\[1 1 1 ; 1 ,1 ,1 ; 1, 1,1\]  
int linewidth;  
linewidth=(pbi->bmiHeader.biWidth\*pbi->bmiHeader.biBitCount+31)/32\*4;  
  
  
HLOCAL hTemp;  
hTemp = LocalAlloc(LHND ,linewidth \* bi.biHeight );  
  
LPSTR lpTemp;  
lpTemp = (char\*)LocalLock(hTemp);  
unsigned char \*lpScr;  
unsigned char \* lpDest;  
int sum ;  
int m\_template\[9\] = \{0, -1, 0 , -1 ,5 ,-1 , 0, -1,0 \};  
// 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\{  
sum = 0 ;  
for(int m = i -1 ; m <= i+1 ;m++)\{  
for(int n = j-1; n<=j+1; n++)\{  
lpScr = (unsigned char\*)lpBuf + linewidth\*(bi.biHeight - m -1) + n;  
sum += (\*lpScr) \* m\_template\[3\*(m - i +1) + n - j +1\];  
\}  
\}  
  
if((sum >= 0 )&&(sum <= 255))  
\{  
\*lpDest = sum;  
\}  
else if(sum > 255) \*lpDest = 255;  
else \*lpDest= 0;  
  
\}  
\}  
  
\}  
      
memcpy(lpBuf, lpTemp, linewidth \* bi.biHeight);  
//Invalidata(TRUE);  
  
UpdateAllViews(NULL,0,NULL);  
\}  
void CBMPViewerDoc::OnMenuitem32792() //中值滤波  
\{  
//模板1/16\*\[1 1 1 ; 1 ,1 ,1 ; 1, 1,1\]  
int linewidth;  
linewidth=(pbi->bmiHeader.biWidth\*pbi->bmiHeader.biBitCount+31)/32\*4;  
  
  
HLOCAL hTemp;  
hTemp = LocalAlloc(LHND ,linewidth \* bi.biHeight );  
  
LPSTR lpTemp;  
lpTemp = (char\*)LocalLock(hTemp);  
unsigned char \*lpScr;  
unsigned char \* lpDest;  
int sum ;  
int m\_template\[9\] = \{1, 1, 1 , 1 ,1 ,1 , 1, 1,1 \};  
// 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\{  
sum = 0 ;  
for(int m = i -1 ; m <= i+1 ;m++)\{  
for(int n = j-1; n<=j+1; n++)\{  
lpScr = (unsigned char\*)lpBuf + linewidth\*(bi.biHeight - m -1) + n;  
sum += (\*lpScr) \* m\_template\[3\*(m - i +1) + n - j +1\];  
\}  
\}  
sum/= 9;  
if((sum >= 0 )&&(sum <= 255))  
\{  
\*lpDest = sum;  
\}  
else if(sum > 255) \*lpDest = 255;  
else \*lpDest= 0;  
  
\}  
\}  
  
\}  
      
memcpy(lpBuf, lpTemp, linewidth \* bi.biHeight);  
//Invalidata(TRUE);  
  
UpdateAllViews(NULL,0,NULL);  
  
  
\}

[http_download.csdn.net_detail_renshengrumenglibing_3875522]: http://download.csdn.net/detail/renshengrumenglibing/3875522