📄 shiqian0197view.cpp
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// TODO: Add your command handler code here
CShiqian0197Doc *pDoc=GetDocument();
ASSERT_VALID(pDoc);
CRotate dlg;
if(dlg.DoModal()==IDOK)
{
UpdateData(false);
}
HDIB hDIB=pDoc->GetHDIB();
/***************对图象的基本信息进行设置和声明****************/
LPSTR lpDIB; //指向原图像的指针
LPSTR lpDIBBits; //指向原图像的指针
LPSTR lpSrc; //指向原图像数据区图像各像素的指针
lpDIB = (char * ) ::GlobalLock((HGLOBAL) hDIB);
lpDIBBits = ::FindDIBBits(lpDIB);
long lWidth = ::DIBWidth(lpDIB);
long lLineBytes = WIDTHBYTES(lWidth * 8);
long lHeight = ::DIBHeight(lpDIB);
HDIB hNewDIB; //旋转后位图句柄
LPSTR lpNewDIB; //指向旋转后图像的指针
LPSTR lpNewDIBBits; //指向旋转后图像数据区的指针
LPSTR lpDst; //指向旋转后图像各像素的指针
long lNewWidth; //旋转后图像宽度
long lNewLineBytes; //旋转后图像每行字节数
long lNewHeight; //旋转后图像高度
LPBITMAPINFOHEADER lpinfo; //指向BITMAPINFO结构的指针
/****************得到旋转后图象的宽和高***************/
float fRotateAngle;//旋转角度
float fSina,fCosa;//旋转角度的正弦和余弦
float fSrcX1,fSrcY1,fSrcX2,fSrcY2,fSrcX3,fSrcY3,fSrcX4,fSrcY4;//原图像四个角点坐标，以图像中心为坐标系原点
float fDstX1,fDstY1,fDstX2,fDstY2,fDstX3,fDstY3,fDstX4,fDstY4;//旋转后图像四个角点坐标，以图像中心为坐标系原点
float f1,f2;
float iRotateAngle=dlg.m_iRotate;
fRotateAngle = iRotateAngle*PAI/180;
// fRotateAngle = (float) RADIAN(iRotateAngle); //将旋转角度从度转换到弧度
fSina = (float) sin((double)fRotateAngle);
fCosa = (float) cos((double)fRotateAngle);
//计算原图四个角点坐标
fSrcX1 = (float) (- (lWidth - 1)/2);
fSrcY1 = (float) ( (lHeight - 1)/2);
fSrcX2 = (float) ( (lWidth - 1)/2);
fSrcY2 = (float) ( (lHeight - 1)/2);
fSrcX3 = (float) (- (lWidth - 1)/2);
fSrcY3 = (float) (- (lHeight - 1)/2);
fSrcX4 = (float) ( (lWidth - 1)/2);
fSrcY4 = (float) (- (lHeight - 1)/2);
//计算旋转后四个角点坐标
fDstX1 = fCosa * fSrcX1 + fSina * fSrcY1;
fDstY1 = -fSina * fSrcX1 + fCosa * fSrcY1;
fDstX2 = fCosa * fSrcX2 + fSina * fSrcY2;
fDstY2 = -fSina * fSrcX2 + fCosa * fSrcY2;
fDstX3 = fCosa * fSrcX3 + fSina * fSrcY3;
fDstY3 = -fSina * fSrcX3 + fCosa * fSrcY3;
fDstX4 = fCosa * fSrcX4 + fSina * fSrcY4;
fDstY4 = -fSina * fSrcX4 + fCosa * fSrcY4;
lNewWidth = (LONG) (max(fabs(fDstY4 - fDstY1),fabs(fDstY3 - fDstY2) ) + 0.5);
lNewLineBytes = WIDTHBYTES(lNewWidth * 8);
lNewHeight = (LONG) (max( fabs(fDstY4 - fDstY1), fabs(fDstY3 - fDstY2) ) + 0.5);
f1 = (float) (-0.5 * (lNewWidth - 1) * fCosa - 0.5 * (lNewHeight - 1) * fSina
+ 0.5 * (lWidth - 1));
f2 = (float) ( 0.5 * (lNewWidth - 1) * fSina - 0.5 * (lNewHeight - 1) * fCosa
+ 0.5 * (lHeight - 1));
/**********************对新的句柄进行操作********************/
hNewDIB = (HDIB) ::GlobalAlloc(GHND,lNewLineBytes * lNewHeight + *(LPDWORD)lpDIB
+ ::PaletteSize(lpDIB)); //为新图象申请内存块
if(hDIB == NULL) //检验句柄
{
return ;
}
lpNewDIB = (char * ) ::GlobalLock((HGLOBAL) hNewDIB); //锁定句柄
memcpy(lpNewDIB,lpDIB, *(LPDWORD)lpDIB + ::PaletteSize(lpDIB)); //复制位图信息头和调色板
lpNewDIBBits = ::FindDIBBits(lpNewDIB); //得到数据区的指针
lpinfo = (LPBITMAPINFOHEADER)lpNewDIB; //初始化信息头
lpinfo->biWidth = lNewWidth; //更新位图中图像的高度和宽度
lpinfo->biHeight = lNewHeight; //针对图像每行进行操作
lpinfo->biSizeImage=lNewHeight*lNewWidth;
//循环变量，像素在新位图中的坐标
LONG i;
LONG j;
//循环变量，像素在原位图中的坐标
LONG i0;
LONG j0;
for(i = 0; i < lNewHeight; i++)
{
//针对图像每列进行操作
for(j = 0; j< lNewWidth; j++)
{
//指向新位图第i行，第j列像素的指针
lpDst = (char *)lpNewDIBBits + lNewLineBytes * (lNewHeight - 1 - i) + j;
//计算该像素在原位图中的坐标
i0 = (LONG) (-((float) j) * fSina + ((float) i) * fCosa + f2 + 0.5);
j0 = (LONG) ( ((float) j) * fCosa + ((float) i) * fSina + f1 + 0.5);
//判断是否在原图范围内
if((j0 >= 0) && (j0 < lWidth) && (i0 >= 0) && (i0 < lHeight))
{
lpSrc = (char *)lpDIBBits + lLineBytes * (lHeight - 1 - i0) + j0;
*lpDst = *lpSrc;//复制像素
}
else
{
* ((unsigned char*)lpDst) = 255;//对于超出原图范围的像素置为255
}
}
}
/****************后续处理,使其显示****************/
pDoc->ReplaceHDIB(hNewDIB); // 替换DIB，同时释放旧DIB对象
pDoc->InitDIBData(); // 更新DIB大小和调色板
pDoc->SetModifiedFlag(TRUE); // 设置脏标记
SetScrollSizes(MM_TEXT, pDoc->GetDocSize());// 重新设置滚动视图大小
pDoc->UpdateAllViews(NULL); // 更新视图
::GlobalUnlock(pDoc->GetHDIB());
EndWaitCursor();
}
void CShiqian0197View::OnTzMoravec()
{
// TODO: Add your command handler code here
}
void CShiqian0197View::OnTzForstner()
{
// TODO: Add your command handler code here
}
void CShiqian0197View::OnXingtaiTranstobinary()
{
// TODO: Add your command handler code here
CShiqian0197Doc* pDoc = GetDocument();
ASSERT_VALID(pDoc);
CYuzhiDlg dlg;
if(dlg.DoModal()==IDOK)
{
UpdateData(false);
}
HDIB hDIB=pDoc->GetHDIB();
LPSTR lpDIB; //指向原图像的指针
LPSTR lpDIBBits; //指向原图像的指针
LPSTR lpSrc; //指向原图像数据区图像各像素的指针
lpDIB = (char * ) ::GlobalLock((HGLOBAL) hDIB);
lpDIBBits = ::FindDIBBits(lpDIB);
long lWidth = ::DIBWidth(lpDIB);
long lLineBytes = WIDTHBYTES(lWidth * 8);
long lHeight = ::DIBHeight(lpDIB);
LPBITMAPINFOHEADER lpinfo; //指向BITMAPINFO结构的指针
LONG i; // 循环变量
LONG j;
int bThre=dlg.m_iYuZhi;
/***********************进行二值化************************/
for(i = 0; i < lHeight; i++) // 每行
{
for(j = 0; j < lWidth; j++) // 每列
{
// 指向DIB第i行，第j个象素的指针
lpSrc = (char*)lpDIBBits + lLineBytes * (lHeight - 1 - i) + j;
// 判断是否小于阈值
if ((*lpSrc) < bThre)
{
// 直接赋值为0
*lpSrc = 0;
}
else
{
// 直接赋值为255
*lpSrc = 255;
}
}
}
pDoc->UpdateAllViews(NULL);
}
void CShiqian0197View::OnXingtaiFushiShuiping()
{
// TODO: Add your command handler code here
// TODO: Add your command handler code here
CShiqian0197Doc* pDoc = GetDocument();
ASSERT_VALID(pDoc);
HDIB hDIB=pDoc->GetHDIB();
LPSTR lpDIB;
LPSTR lpDIBBits;
lpDIB = (char * ) ::GlobalLock((HGLOBAL) hDIB);
lpDIBBits = ::FindDIBBits(lpDIB);
long lWidth = ::DIBWidth(lpDIB);
long lLineBytes = WIDTHBYTES(lWidth * 8);
long lHeight = ::DIBHeight(lpDIB);
HDIB hNewDIBBits;
LPSTR lpNewDIBBits;
hNewDIBBits = (HDIB)LocalAlloc(LHND, lLineBytes*lHeight);
lpNewDIBBits = (char * )LocalLock(hNewDIBBits);
memcpy(lpNewDIBBits, lpDIBBits, lLineBytes *lHeight);
int p,q;
long n;
for( p=0;p<lHeight;p++)
for( q=0;q<lWidth;q++)
{
if(q==0)
{
if(
*(lpDIBBits+(lHeight-p-1)*lWidth+q)==0
// ||*(lpDIBBits+(lHeight-p)*lWidth+q)==0
// ||*(lpDIBBits+(lHeight-p-2)*lWidth+q)==0
||*(lpDIBBits+(lHeight-p-1)*lWidth+q+1)==0
// ||*(lpDIBBits+(lHeight-p-1)*lWidth+q-1)==0
)
n=0;
else
n=255;
*(lpNewDIBBits+(lHeight-p-1)*lWidth+q)=(unsigned char)n;
}
else if(q==lWidth-1)
{
if(
*(lpDIBBits+(lHeight-p-1)*lWidth+q)==0
// ||*(lpDIBBits+(lHeight-p)*lWidth+q)==0
// ||*(lpDIBBits+(lHeight-p-2)*lWidth+q)==0
// ||*(lpDIBBits+(lHeight-p-1)*lWidth+q+1)==0
||*(lpDIBBits+(lHeight-p-1)*lWidth+q-1)==0
)
n=0;
else
n=255;
*(lpNewDIBBits+(lHeight-p-1)*lWidth+q)=(unsigned char)n;
}
else
{
if(
*(lpDIBBits+(lHeight-p-1)*lWidth+q)==0
// ||*(lpDIBBits+(lHeight-p)*lWidth+q)==0
// ||*(lpDIBBits+(lHeight-p-2)*lWidth+q)==0
||*(lpDIBBits+(lHeight-p-1)*lWidth+q+1)==0
||*(lpDIBBits+(lHeight-p-1)*lWidth+q-1)==0
)
n=0;
else
n=255;
*(lpNewDIBBits+(lHeight-p-1)*lWidth+q)=(unsigned char)n;
}
}
memcpy(lpDIBBits, lpNewDIBBits, lLineBytes*lHeight);
LocalUnlock(hNewDIBBits);
LocalFree(hNewDIBBits);
InvalidateRect(NULL,TRUE);
}
void CShiqian0197View::OnXingtaiFushiChuizhi()
{
// TODO: Add your command handler code here
CShiqian0197Doc* pDoc = GetDocument();
ASSERT_VALID(pDoc);
HDIB hDIB=pDoc->GetHDIB();
LPSTR lpDIB;
LPSTR lpDIBBits;
lpDIB = (char * ) ::GlobalLock((HGLOBAL) hDIB);
lpDIBBits = ::FindDIBBits(lpDIB);
long lWidth = ::DIBWidth(lpDIB);
long lLineBytes = WIDTHBYTES(lWidth * 8);
long lHeight = ::DIBHeight(lpDIB);
HDIB hNewDIBBits;
LPSTR lpNewDIBBits;
hNewDIBBits = (HDIB)LocalAlloc(LHND, lLineBytes*lHeight);
lpNewDIBBits = (char * )LocalLock(hNewDIBBits);
memcpy(lpNewDIBBits, lpDIBBits, lLineBytes *lHeight);
int p,q;
long n;
for( p=0;p<lHeight;p++)
for( q=0;q<lWidth;q++)
{
if(p==0)
{
if(
*(lpDIBBits+(lHeight-p-1)*lWidth+q)==0
// ||*(lpDIBBits+(lHeight-p)*lWidth+q)==0
||*(lpDIBBits+(lHeight-p-2)*lWidth+q)==0
// ||*(lpDIBBits+(lHeight-p-1)*lWidth+q+1)==0
// ||*(lpDIBBits+(lHeight-p-1)*lWidth+q-1)==0
)
n=0;
else
n=255;
*(lpNewDIBBits+(lHeight-p-1)*lWidth+q)=(unsigned char)n;
}
else if(p==lHeight)
{
if(
*(lpDIBBits+(lHeight-p-1)*lWidth+q)==0
||*(lpDIBBits+(lHeight-p)*lWidth+q)==0
// ||*(lpDIBBits+(lHeight-p-2)*lWidth+q)==0
// ||*(lpDIBBits+(lHeight-p-1)*lWidth+q+1)==0
// ||*(lpDIBBits+(lHeight-p-1)*lWidth+q-1)==0
)
n=0;
else
n=255;
*(lpNewDIBBits+(lHeight-p-1)*lWidth+q)=(unsigned char)n;
}
else
{
if(
*(lpDIBBits+(lHeight-p-1)*lWidth+q)==0
||*(lpDIBBits+(lHeight-p)*lWidth+q)==0
||*(lpDIBBits+(lHeight-p-2)*lWidth+q)==0
// ||*(lpDIBBits+(lHeight-p-1)*lWidth+q+1)==0
// ||*(lpDIBBits+(lHeight-p-1)*lWidth+q-1)==0
)
n=0;
else
n=255;
*(lpNewDIBBits+(lHeight-p-1)*lWidth+q)=(unsigned char)n;
}
}
memcpy(lpDIBBits, lpNewDIBBits, lLineBytes*lHeight);
LocalUnlock(hNewDIBBits);
LocalFree(hNewDIBBits);
InvalidateRect(NULL,TRUE);
}
void CShiqian0197View::OnXingtaiFushiQuanfangwei()
{
// TODO: Add your command handler code here
CShiqian0197Doc* pDoc = GetDocument();
ASSERT_VALID(pDoc);
HDIB hDIB=pDoc->GetHDIB();
LPSTR lpDIB;
LPSTR lpDIBBits;
lpDIB = (char * ) ::GlobalLock((HGLOBAL) hDIB);
lpDIBBits = ::FindDIBBits(lpDIB);
long lWidth = ::DIBWidth(lpDIB);
long lLineBytes = WIDTHBYTES(lWidth * 8);
long lHeight = ::DIBHeight(lpDIB);
HDIB hNewDIBBits;
LPSTR lpNewDIBBits;
hNewDIBBits = (HDIB)LocalAlloc(LHND, lLineBytes*lHeight);
lpNewDIBBits = (char * )LocalLock(hNewDIBBits);
memcpy(lpNewDIBBits, lpDIBBits, lLineBytes *lHeight);
int p,q;
long n;
for( p=0;p<lHeight;p++)
for( q=0;q<lWidth;q++)
{
if(p==0&&q==0)
{
if(
*(lpDIBBits+(lHeight-p-1)*lWidth+q)==0
// ||*(lpDIBBits+(lHeight-p)*lWidth+q)==0
||*(lpDIBBits+(lHeight-p-2)*lWidth+q)==0
||*(lpDIBBits+(lHeight-p-1)*lWidth+q+1)==0
// ||*(lpDIBBits+(lHeight-p-1)*lWidth+q-1)==0
)
n=0;
else
n=255;
*(lpNewDIBBits+(lHeight-p-1)*lWidth+q)=(unsigned char)n;
}
if(p>=1&&(p<=lHeight-2)&&q==0)
{
if(
*(lpDIBBits+(lHeight-p-1)*lWidth+q)==0
||*(lpDIBBits+(lHeight-p)*lWidth+q)==0
||*(lpDIBBits+(lHeight-p-2)*lWidth+q)==0
||*(lpDIBBits+(lHeight-p-1)*lWidth+q+1)==0
// ||*(lpDIBBits+(lHeight-p-1)*lWidth+q-1)==0
)
n=0;
else
n=255;
*(lpNewDIBBits+(lHeight-p-1)*lWidth+q)=(unsigned char)n;
}
if((p==lWidth-1)&&q==0)
{
if(
*(lpDIBBits+(lHeight-p-1)*lWidth+q)==0
||*(lpDIBBits+(lHeight-p)*lWidth+q)==0
// ||*(lpDIBBits+(lHeight-p-2)*lWidth+q)==0
||*(lpDIBBits+(lHeight-p-1)*lWidth+q+1)==0
// ||*(lpDIBBits+(lHeight-p-1)*lWidth+q-1)==0
)
n=0;
else
n=255;
*(lpNewDIBBits+(lHeight-p-1)*lWidth+q)=(unsigned char)n;
}
if((p==lWidth-1)&&q>=1&&(q<=lWidth-2))
{
if(
*(lpDIBBits+(lHeight-p-1)*lWidth+q)==0
||*(lpDIBBits+(lHeight-p)*lWidth+q)==0
// ||*(lpDIBBits+(lHeight-p-2)*lWidth+q)==0
||*(lpDIBBits+(lHeight-p-1)*lWidth+q+1)==0
||*(lpDIBBits+(lHeight-p-1)*lWidth+q-1)==0
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