图像锐化拉普拉斯vc代码

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1. void CSDIELSView::OnSharpeningLaplace()  
2.     {  
3. //程序编制：李立宗  [e-mail]  
4. //2012-8-11  
5.         if(myImage1.IsNull())  
6.             OnOpenResourceFile();  
7.         if(!myImage2.IsNull())  
8.             myImage2.Destroy();  
9.         if(myImage2.IsNull()){  
10.             myImage2.Create(myImage1.GetWidth(),myImage1.GetHeight(),24,0);  
11.         }  
12.         //COLORREF pixel;   
13.         int maxY = myImage1.GetHeight();  
14.         int maxX=myImage1.GetWidth();  
15.         byte* pRealData;  
16.         byte* pRealData2;  
17.         pRealData=(byte*)myImage1.GetBits();  
18.         pRealData2=(byte*)myImage2.GetBits();  
19.         int pit=myImage1.GetPitch();  
20.         int pit2=myImage2.GetPitch();  
21.         //需要注意,pit和pit2的值并不一样,所以如果使用一个值,会导致不同的结果出现  
22.         //CString str;  
23.         //str.Format(TEXT("%d"),pit);  
24.         //MessageBox(str);  
25.         //str.Format(TEXT("%d"),pit2);  
26.         //MessageBox(str);  
27.         int bitCount=myImage1.GetBPP()/8;  
28.         int bitCount2=myImage2.GetBPP()/8;  
29.         int tempR,tempG,tempB;  
30.         int tempX,tempY;  
31.         int temp;  
32.         //int M[3][3]={{1,2,1},{2,4,2},{1,2,1}};  
33.         int t=100; //门限  
34.         //  tempR=tempG=tempG=0;  
35.         //说明：将生产的图像作为24位图处理。  
36.         for (int y=1; y<maxY-1; y++) {  
37.             for (int x=1; x<maxX-1; x++) {  
38.                 temp=  
39.                     *(pRealData+pit*(y-1)+(x-1)*bitCount)+*(pRealData+pit*(y-1)+(x)*bitCount)+*(pRealData+pit*(y-1)+(x+1)*bitCount)  
40.                     +*(pRealData+pit*(y)+(x-1)*bitCount)-8*(*(pRealData+pit*(y)+(x)*bitCount))+*(pRealData+pit*(y)+(x+1)*bitCount)  
41.                     +*(pRealData+pit*(y+1)+(x-1)*bitCount)+*(pRealData+pit*(y+1)+(x)*bitCount)+*(pRealData+pit*(y+1)+(x+1)*bitCount);  
42.                 temp=abs(temp);  
43.                 if(temp>255)  
44.                     tempR=255;  
45.                 else  
46.                     tempR=temp;  
47.                 if(bitCount==1)  
48.                 {  
49.                     tempG=tempR;  
50.                     tempB=tempR;  
51.                 }  
52.                 else  
53.                 {  
54.                                     temp=  
55.                     *(pRealData+pit*(y-1)+(x-1)*bitCount+1)+*(pRealData+pit*(y-1)+(x)*bitCount+1)+*(pRealData+pit*(y-1)+(x+1)*bitCount+1)  
56.                     +*(pRealData+pit*(y)+(x-1)*bitCount+1)-8*(*(pRealData+pit*(y)+(x)*bitCount+1))+*(pRealData+pit*(y)+(x+1)*bitCount+1)  
57.                     +*(pRealData+pit*(y+1)+(x-1)*bitCount+1)+*(pRealData+pit*(y+1)+(x)*bitCount+1)+*(pRealData+pit*(y+1)+(x+1)*bitCount+1);  
58.                 temp=abs(temp);  
59.                 if(temp>255)  
60.                     tempG=255;  
61.                 else  
62.                     tempG=temp;  
63.   
64.   
65.                                 temp=  
66.                     *(pRealData+pit*(y-1)+(x-1)*bitCount+2)+*(pRealData+pit*(y-1)+(x)*bitCount+2)+*(pRealData+pit*(y-1)+(x+1)*bitCount+2)  
67.                     +*(pRealData+pit*(y)+(x-1)*bitCount+2)-8*(*(pRealData+pit*(y)+(x)*bitCount+2))+*(pRealData+pit*(y)+(x+1)*bitCount+2)  
68.                     +*(pRealData+pit*(y+1)+(x-1)*bitCount+2)+*(pRealData+pit*(y+1)+(x)*bitCount+2)+*(pRealData+pit*(y+1)+(x+1)*bitCount+2);  
69.                 temp=abs(temp);  
70.                 if(temp>255)  
71.                     tempB=255;  
72.                 else  
73.                     tempB=temp;  
74.                 }  
75.   
76.                 *(pRealData2+pit2*y+x*bitCount2)=tempR;  
77.                 *(pRealData2+pit2*y+x*bitCount2+1)=tempG;  
78.                 *(pRealData2+pit2*y+x*bitCount2+2)=tempB;  
79.             }  
80.         }  
81.         Invalidate();  
82.     }