void __fastcall TForm1::BitBtn2Click(TObject *Sender)
{
this->Label1->Caption="正在锐化处理图像... ";
this->Label1->Update();
int iHeight=this->Image1->Picture->Height;
int iWidth=this->Image1->Picture->Width;
//拉普拉斯模板
int Laplacian[9]={-1,-1,-1,-1,9,-1,-1,-1,-1};
for(int x=1;x<iWidth-1;x++)
for(int y=1;y<iHeight-1;y++)
{
int r=0,g=0,b=0;
int Index=0;
for(int col=-1;col<=1;col++)
for(int row=-1;row<=1;row++)
{
COLORREF pixel=this->Image1->Canvas->Pixels[x+row][y+col];
r+=GetRValue(pixel)*Laplacian[Index];
g+=GetGValue(pixel)*Laplacian[Index];
b+=GetBValue(pixel)*Laplacian[Index];
Index++;
}
//处理颜色值溢出
r=r>255?255:r;
r=r<0?0:r;
g=g>255?255:g;
g=g<0?0:g;
b=b>255?255:b;
b=b<0?0:b;
this->Image1->Canvas->Pixels[x-1][y-1]=RGB(r,g,b);
}
this->Label1->Caption="锐化处理图像完毕！ ";
}
//---------------------------------------------------------------------------
