📄 demoview.cpp

📁 将数字图像处理的一般算法都集中在一个MFC的框架中
💻 CPP
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	GrayTrans graytrans(pDib->GetDimensions(),pDib->m_nBitCount,
		pDib->m_lpColorTable, pDib->m_pImgData);
	
	//灰度变彩色格式
	graytrans.GrayToColor();
	
	//建立一个新视图，显示分割结果
	CMainFrame* pFrame = (CMainFrame *)(AfxGetApp()->m_pMainWnd);
	pFrame->SendMessage(WM_COMMAND, ID_FILE_NEW);
	CDemoView* pView=(CDemoView*)pFrame->MDIGetActive()->GetActiveView();
	CDemoDoc* pDocNew=pView->GetDocument();
	ImgCenterDib *dibNew=pDocNew->GetPDib();
	dibNew->ReplaceDib(graytrans.GetDimensions(),graytrans.m_nBitCountOut,graytrans.m_lpColorTableOut, graytrans.m_pImgDataOut);
	pView->OnInitialUpdate();	
	pDocNew->SetModifiedFlag(TRUE);
	pDocNew->UpdateAllViews(pView);
}

void CDemoView::OnLinearStrecth() 
{
	//获取文档类中m_dib的指针，访问当前DIB数据
	CDemoDoc *pDoc=GetDocument();
	ImgCenterDib *pDib=pDoc->GetPDib();
	
	//异常判断
	if(pDib->m_nBitCount!=24&&pDib->m_nBitCount!=8){
		::MessageBox(0,"只处理彩色和灰度图像",MB_OK,0);
		return ;
	}

	//线性拉伸参数设置对话框
	linearStretchParamDlg dlgPara;
	if(dlgPara.DoModal()==IDOK){
		//获取用户设置的两个拉伸转折点
		CPoint point[2];
		point[0].x=dlgPara.m_firstPointX;
		point[0].y=dlgPara.m_firstPointY;
		point[1].x=dlgPara.m_secondPointX;
		point[1].y=dlgPara.m_secondPointY;

		//判断参数的合理性
		if(point[0].x<0||point[0].x>255||point[1].x<0||point[1].x>255
			||point[0].y<0||point[0].y>255||point[1].y<0||point[1].y>255
			||point[0].x>point[1].x){
			::MessageBox(0,"参数不合理",MB_OK,0);
			return;
		}

		//定义灰度变换的类对象
		GrayTrans graytrans(pDib->GetDimensions(),pDib->m_nBitCount,
			pDib->m_lpColorTable, pDib->m_pImgData);

		//线性拉伸
		graytrans.LinearStrech(point);
		
		//新建窗口显示
		CMainFrame* pFrame = (CMainFrame *)(AfxGetApp()->m_pMainWnd);
		pFrame->SendMessage(WM_COMMAND, ID_FILE_NEW);		
		CDemoView* pView=(CDemoView*)pFrame->MDIGetActive()->GetActiveView();
		CDemoDoc* pDocNew=pView->GetDocument();
		ImgCenterDib *dibNew=pDocNew->GetPDib();	
		dibNew->ReplaceDib(graytrans.GetDimensions(),graytrans.m_nBitCountOut,graytrans.m_lpColorTableOut, graytrans.m_pImgDataOut);
		pView->OnInitialUpdate();	
		pDocNew->SetModifiedFlag(TRUE);
		pDocNew->UpdateAllViews(pView);
	}
}


void CDemoView::OnDuiShuStretch() 
{
	//获取文档类中m_dib的指针，访问当前DIB数据
	CDemoDoc *pDoc=GetDocument();
	ImgCenterDib *pDib=pDoc->GetPDib();
	
	//异常判断
	if(pDib->m_nBitCount!=24&&pDib->m_nBitCount!=8){
		::MessageBox(0,"只处理彩色和灰度图像",MB_OK,0);
		return ;
	}
	
	NonlinearStretchDlg dlgPara;
	//对数拉伸参数初始化
	dlgPara.m_a=0;
	dlgPara.m_b=(float)0.033;
	dlgPara.m_c=(float)2;
	if(dlgPara.DoModal()==IDOK){
		if(dlgPara.m_b==0||dlgPara.m_c==1){
			::MessageBox(0,"b不能为0，且c不能为1",MB_OK,0);
			return;
		}
		//定义灰度变换的类对象
		GrayTrans graytrans(pDib->GetDimensions(),pDib->m_nBitCount,
			pDib->m_lpColorTable, pDib->m_pImgData);
		
		//传递对数拉伸参数，进行非线性拉伸
		graytrans.DuiShuStrech(dlgPara.m_a, dlgPara.m_b, dlgPara.m_c);
		
		//新建窗口显示
		CMainFrame* pFrame = (CMainFrame *)(AfxGetApp()->m_pMainWnd);
		pFrame->SendMessage(WM_COMMAND, ID_FILE_NEW);		
		CDemoView* pView=(CDemoView*)pFrame->MDIGetActive()->GetActiveView();
		CDemoDoc* pDocNew=pView->GetDocument();
		ImgCenterDib *dibNew=pDocNew->GetPDib();	
		dibNew->ReplaceDib(graytrans.GetDimensions(),graytrans.m_nBitCountOut,graytrans.m_lpColorTableOut, graytrans.m_pImgDataOut);
		pView->OnInitialUpdate();	
		pDocNew->SetModifiedFlag(TRUE);
		pDocNew->UpdateAllViews(pView);
	}
}

void CDemoView::OnZhiShuStretch() 
{
	//获取文档类中m_dib的指针，访问当前DIB数据
	CDemoDoc *pDoc=GetDocument();
	ImgCenterDib *pDib=pDoc->GetPDib();
	
	//异常判断
	if(pDib->m_nBitCount!=24&&pDib->m_nBitCount!=8){
		::MessageBox(0,"只处理彩色和灰度图像",MB_OK,0);
		return ;
	}
	
	NonlinearStretchDlg dlgPara;
	//指数拉伸参数初始化
	dlgPara.m_a=(float)128;
	dlgPara.m_b=2;
	dlgPara.m_c=(float)0.6;
	if(dlgPara.DoModal()==IDOK){
		//定义灰度变换的类对象
		GrayTrans graytrans(pDib->GetDimensions(),pDib->m_nBitCount,
			pDib->m_lpColorTable, pDib->m_pImgData);
		
		//传递指数拉伸参数，进行非线性拉伸
		graytrans.ZhiShuStrech(dlgPara.m_a, dlgPara.m_b, dlgPara.m_c);
		
		//新建窗口显示
		CMainFrame* pFrame = (CMainFrame *)(AfxGetApp()->m_pMainWnd);
		pFrame->SendMessage(WM_COMMAND, ID_FILE_NEW);		
		CDemoView* pView=(CDemoView*)pFrame->MDIGetActive()->GetActiveView();
		CDemoDoc* pDocNew=pView->GetDocument();
		ImgCenterDib *dibNew=pDocNew->GetPDib();	
		dibNew->ReplaceDib(graytrans.GetDimensions(),graytrans.m_nBitCountOut,graytrans.m_lpColorTableOut, graytrans.m_pImgDataOut);
		pView->OnInitialUpdate();
		pDocNew->SetModifiedFlag(TRUE);
		pDocNew->UpdateAllViews(pView);
	}
}

void CDemoView::OnHistgramAver() 
{
	//获取文档类中m_dib的指针，访问当前DIB数据
	CDemoDoc *pDoc=GetDocument();
	ImgCenterDib *pDib=pDoc->GetPDib();
	
	//只处理灰度图像
	if(pDib->m_nBitCount!=8){
		::MessageBox(0,"只处理灰度图像",MB_OK,0);
		return ;
	}
	
	//将pDib中的图像数据作为输入数据，调用带参数的构造函数，
	//定义Histogram类的对象hist
	Histogram hist(pDib->GetDimensions(),pDib->m_nBitCount,
		pDib->m_lpColorTable, pDib->m_pImgData);

	//直方图均衡
	hist.histAve();
	
	//新建视图窗口，显示变换结果
	CMainFrame* pFrame = (CMainFrame *)(AfxGetApp()->m_pMainWnd);
	pFrame->SendMessage(WM_COMMAND, ID_FILE_NEW);
	CDemoView* pView=(CDemoView*)pFrame->MDIGetActive()->GetActiveView();
	CDemoDoc* pDocNew=pView->GetDocument();
	ImgCenterDib *dibNew=pDocNew->GetPDib();
	dibNew->ReplaceDib(hist.GetDimensions(),hist.m_nBitCount,hist.m_lpColorTable, hist.m_pImgDataOut);
	pView->OnInitialUpdate();	
	pDocNew->SetModifiedFlag(TRUE);
	pDocNew->UpdateAllViews(pView);
}

void CDemoView::OnHistogramDraw() 
{
	//获取文档类中m_dib的指针，访问当前DIB数据
	CDemoDoc *pDoc=GetDocument();
	ImgCenterDib *pDib=pDoc->GetPDib();
	
	//异常判断
  if(pDib->m_nBitCount!=8&&pDib->m_nBitCount!=24){
	  ::MessageBox(0,"只处理灰度和彩色图像",MB_OK,0);
	  return ;
  }

  //直方图绘制对话框
  HistogramDrawDlg dlgHist;
  dlgHist.m_histogramDib.ReplaceDib(pDib->GetDimensions(),pDib->m_nBitCount,
	  pDib->m_lpColorTable, pDib->m_pImgData);

  //显示直方图
  dlgHist.DoModal();
}



void CDemoView::OnFft() 
{
	//获取文档类中m_dib的指针，访问当前DIB数据
	CDemoDoc *pDoc=GetDocument();
	ImgCenterDib *pDib=pDoc->GetPDib();
	
	//只处理灰度图像
	if(pDib->m_nBitCount!=8){
		::MessageBox(0,"只处理灰度图像",MB_OK,0);
		return ;
	}
	
	//判断图像大小是否为2的幂次的方阵
	int isValidateFlag=1;
	int width=pDib->GetDimensions().cx;
	int height=pDib->GetDimensions().cy;
	int i=1;
	while(i<width)
		i=i*2;
	if(i!=width)//图像宽不是2的幂次方
		isValidateFlag=0;

	i=1;
	while(i<height)
		i=i*2;
	if(i!=height)//图像高不是2的幂次方
		isValidateFlag=0;

	if(isValidateFlag==0){
		::MessageBox(0,"输入图像的宽和高应为2的幂次方",MB_OK,0);
		return ;
	}
	
	//输入图像数据给transform_FFT类对象FFTTrans
	FFTTrans.InputImgData(pDib->GetDimensions(),pDib->m_nBitCount,
		pDib->m_lpColorTable, pDib->m_pImgData);
	
	//快速傅立叶变换
	FFTTrans.Fourier();
	
	//新建视图窗口，显示变换结果
	CMainFrame* pFrame = (CMainFrame *)(AfxGetApp()->m_pMainWnd);
	pFrame->SendMessage(WM_COMMAND, ID_FILE_NEW);
	CDemoView* pView=(CDemoView*)pFrame->MDIGetActive()->GetActiveView();
	CDemoDoc* pDocNew=pView->GetDocument();
	ImgCenterDib *dibNew=pDocNew->GetPDib();
	dibNew->ReplaceDib(FFTTrans.GetDimensions(),FFTTrans.m_nBitCountOut,
		FFTTrans.m_lpColorTable, FFTTrans.m_pImgDataOut);
	pView->OnInitialUpdate();
	pDocNew->SetModifiedFlag(TRUE);
	pDocNew->UpdateAllViews(pView);
	
}

void CDemoView::OnIfft() 
{
	//傅立叶反变换
	FFTTrans.IFourier();
	
    //新建视图窗口，显示图像恢复的结果
	CMainFrame* pFrame = (CMainFrame *)(AfxGetApp()->m_pMainWnd);
	pFrame->SendMessage(WM_COMMAND, ID_FILE_NEW);
	CDemoView* pView=(CDemoView*)pFrame->MDIGetActive()->GetActiveView();
	CDemoDoc* pDocNew=pView->GetDocument();
	ImgCenterDib *dibNew=pDocNew->GetPDib();
	dibNew->ReplaceDib(FFTTrans.GetDimensions(),FFTTrans.m_nBitCountOut,
		FFTTrans.m_lpColorTable, FFTTrans.m_pImgDataOut);
	pView->OnInitialUpdate();
	pDocNew->SetModifiedFlag(TRUE);
	pDocNew->UpdateAllViews(pView);
	
}


void CDemoView::OnFFTEx() 
{
	//获取文档类中m_dib的指针，访问当前DIB数据
	CDemoDoc *pDoc=GetDocument();
	ImgCenterDib *pDib=pDoc->GetPDib();
	
	//只处理灰度图像
	if(pDib->m_nBitCount!=8){
		::MessageBox(0,"只处理灰度图像",MB_OK,0);
		return ;
	}
	
    //输入图像数据给transform_FFT类对象FFTTrans
	FFTTrans.InputImgData(pDib->GetDimensions(),pDib->m_nBitCount,
		pDib->m_lpColorTable, pDib->m_pImgData);
	
	//调用FourierEx()函数进行快速傅立叶变换，该函数不要求输入图像为2的幂次的方阵
	FFTTrans.FourierEx();
	
	//新建视图窗口，显示变换结果
	CMainFrame* pFrame = (CMainFrame *)(AfxGetApp()->m_pMainWnd);
	pFrame->SendMessage(WM_COMMAND, ID_FILE_NEW);
	CDemoView* pView=(CDemoView*)pFrame->MDIGetActive()->GetActiveView();
	CDemoDoc* pDocNew=pView->GetDocument();
	ImgCenterDib *dibNew=pDocNew->GetPDib();
	dibNew->ReplaceDib(FFTTrans.GetDimensions(),FFTTrans.m_nBitCountOut,
		FFTTrans.m_lpColorTable, FFTTrans.m_pImgDataOut);
	pView->OnInitialUpdate();
	pDocNew->SetModifiedFlag(TRUE);
	pDocNew->UpdateAllViews(pView);
	
}

void CDemoView::OnIFFTEx() 
{
	//傅立叶反变换
	FFTTrans.IFourierEx();
	
	//新建视图窗口，显示图像恢复的结果
	CMainFrame* pFrame = (CMainFrame *)(AfxGetApp()->m_pMainWnd);
	pFrame->SendMessage(WM_COMMAND, ID_FILE_NEW);
	CDemoView* pView=(CDemoView*)pFrame->MDIGetActive()->GetActiveView();
	CDemoDoc* pDocNew=pView->GetDocument();
	ImgCenterDib *dibNew=pDocNew->GetPDib();
	dibNew->ReplaceDib(FFTTrans.GetDimensions(),FFTTrans.m_nBitCountOut,
		FFTTrans.m_lpColorTable, FFTTrans.m_pImgDataOut);
	pView->OnInitialUpdate();
	pDocNew->SetModifiedFlag(TRUE);
	pDocNew->UpdateAllViews(pView);
}


void CDemoView::OnMove() 
{
	//获取文档类中m_dib的指针，访问当前DIB数据
	CDemoDoc *pDoc=GetDocument();
	ImgCenterDib *pDib=pDoc->GetPDib();
	
	//只处理灰度和彩色图像
	if(pDib->m_nBitCount!=8&&pDib->m_nBitCount!=24){
		::MessageBox(0,"只处理灰度和彩色图像",MB_OK,0);
		return ;
	}
	
	//平移参数设置对话框
	GeometryMoveDlg dlgPara;
	if(dlgPara.DoModal()==IDOK){
		//定义GeometryTrans类的对象geoTrans，用当前DIB对其初始化
		GeometryTrans geoTrans(pDib->GetDimensions(),pDib->m_nBitCount,
			pDib->m_lpColorTable, pDib->m_pImgData);
		
		//将dlgPara.m_OffsetX, dlgPara.m_OffsetY作为平移量，对图像平移
		geoTrans.Move(dlgPara.m_OffsetX, dlgPara.m_OffsetY);
		
		//新建视图窗口，显示变换结果
		CMainFrame* pFrame = (CMainFrame *)(AfxGetApp()->m_pMainWnd);
		pFrame->SendMessage(WM_COMMAND, ID_FILE_NEW);
		CDemoView* pView=(CDemoView*)pFrame->MDIGetActive()->GetActiveView();
		CDemoDoc* pDocNew=pView->GetDocument();
		ImgCenterDib *dibNew=pDocNew->GetPDib();
		dibNew->ReplaceDib(geoTrans.GetDimensions(),geoTrans.m_nBitCountOut,geoTrans.m_lpColorTable, geoTrans.m_pImgDataOut);
		pView->OnInitialUpdate();		
		pDocNew->SetModifiedFlag(TRUE);
		pDocNew->UpdateAllViews(pView);
	}
}


void CDemoView::OnHorizontalMirror() 
{
	//获取文档类中m_dib的指针，访问当前DIB数据
	CDemoDoc *pDoc=GetDocument();
	ImgCenterDib *pDib=pDoc->GetPDib();
	
	//只处理灰度和彩色图像
	if(pDib->m_nBitCount!=8&&pDib->m_nBitCount!=24){
		::MessageBox(0,"只处理灰度和彩色图像",MB_OK,0);
		return ;
	}
	
	//定义GeometryTrans类的对象geoTrans，用当前DIB对其初始化
	GeometryTrans geoTrans(pDib->GetDimensions(),pDib->m_nBitCount,
		pDib->m_lpColorTable, pDib->m_pImgData);
	
	//水平镜像
	geoTrans.MirrorHori();
	
	//新建视图窗口，显示变换结果
	CMainFrame* pFrame = (CMainFrame *)(AfxGetApp()->m_pMainWnd);
	pFrame->SendMessage(WM_COMMAND, ID_FILE_NEW);
	CDemoView* pView=(CDemoView*)pFrame->MDIGetActive()->GetActiveView();
	CDemoDoc* pDocNew=pView->GetDocument();
	ImgCenterDib *dibNew=pDocNew->GetPDib();
	dibNew->ReplaceDib(geoTrans.GetDimensions(),geoTrans.m_nBitCountOut,
		geoTrans.m_lpColorTable, geoTrans.m_pImgDataOut);
	pView->OnInitialUpdate();
	pDocNew->SetModifiedFlag(TRUE);
	pDocNew->UpdateAllViews(pView);
}

void CDemoView::OnVerticalMirror() 
{
	//获取文档类中m_dib的指针，访问当前DIB数据
	CDemoDoc *pDoc=GetDocument();
	ImgCenterDib *pDib=pDoc->GetPDib();
	
	//只处理灰度和彩色图像
	if(pDib->m_nBitCount!=8&&pDib->m_nBitCount!=24){
		::MessageBox(0,"只处理灰度和彩色图像",MB_OK,0);
		return ;
	}
	
	//定义GeometryTrans类的对象geoTrans，用当前DIB对其初始化
	GeometryTrans geoTrans(pDib->GetDimensions(),pDib->m_nBitCount,
		pDib->m_lpColorTable, pDib->m_pImgData);
	
	//垂直镜像
	geoTrans.MirrorVerti();
💿 文件大小 17319 K
👤 上传用户 jjkk778
📂 所属分类图形图像
🏷️ 相关标签

#MFC #数字图像处理 #算法
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