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// HistoPrevDlg.cpp : implementation file // #include "stdafx.h" #include "effect.h" #include "HistoPrevDlg.h" #include "JpegDecoder.h" //by hlb #include "math.h" #ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE static char THIS_FILE[] = __FILE__; #endif ///////////////////////////////////////////////////////////////////////////// // CHistoPrevDlg dialog CHistoPrevDlg::CHistoPrevDlg(CWnd* pParent /*=NULL*/) : CDialog(CHistoPrevDlg::IDD, pParent) ,m_nLimitLow(0) ,m_nLimitUp(255) { //{{AFX_DATA_INIT(CHistoPrevDlg) // NOTE: the ClassWizard will add member initialization here //}}AFX_DATA_INIT } void CHistoPrevDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CHistoPrevDlg) DDX_Control(pDX, IDC_HISTO_PREV, m_stiHistogram); //}}AFX_DATA_MAP } BEGIN_MESSAGE_MAP(CHistoPrevDlg, CDialog) //{{AFX_MSG_MAP(CHistoPrevDlg) //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CHistoPrevDlg message handlers int CHistoPrevDlg::DoModal() { // TODO: Add your specialized code here and/or call the base class return CDialog::DoModal(); } void Delayms(DWORD ms) { LARGE_INTEGER litmp; LONGLONG lTimeBegin; LONGLONG lTimeEnd; double dMinus; double dFreq; double dTim; QueryPerformanceFrequency(&litmp); dFreq = litmp.QuadPart; QueryPerformanceCounter(&litmp); lTimeBegin = litmp.QuadPart; do{ QueryPerformanceCounter(&litmp); lTimeEnd = litmp.QuadPart; dMinus = (double)(lTimeEnd - lTimeBegin); dTim = dMinus / dFreq; }while(dTim<ms*0.001); } void CHistoPrevDlg::OnOK() { // TODO: Add extra validation here // 灰度直方图 #if 0 CHistoPrevDlg::Refresh(); #endif //线性变换 #if 0 { double slop = 1.5; double inter = 1.0; CHistoPrevDlg::LineTrans(M_bImageBuff, m_ImageTempBuff, m_PicWidth, m_PicHeight,slop,inter); CHistoPrevDlg::showImage(); } #endif //幂次变换 #if 0 double a = 0.0; double b = 1.5; double c = 0.065; CHistoPrevDlg::ExpTrans(M_bImageBuff, m_ImageTempBuff, m_PicWidth, m_PicHeight, a, b, c); CHistoPrevDlg::showImage(); #endif //图象缩放(最临近插值法) #if 0 double fx = 1.2; double fy = 1.2; UINT outwidth; UINT outheight; if(m_ImageTempBuff) { delete[] m_ImageTempBuff; m_ImageTempBuff = NULL; } CHistoPrevDlg::ZoomInNomal(M_bImageBuff, m_ImageTempBuff, m_PicWidth, m_PicHeight, outwidth, outheight, fx, fy); #endif //图象缩放(双线性插值法) #if 0 UINT outwidth; UINT outheight; double fx = 0.8; double fy = 0.8; CHistoPrevDlg::ZoomInterpolation(M_bImageBuff, m_ImageTempBuff, m_PicWidth,m_PicHeight,outwidth,outheight,fx,fy); m_PicWidth = outwidth; m_PicHeight = outheight; CHistoPrevDlg::showImage(); delete[] m_ImageTempBuff; m_ImageTempBuff = NULL; #endif #if 0 //使用最临近插值法旋转图象 double angle = 0.5; UINT outwidth; UINT outheight; CHistoPrevDlg::RotateNormal(M_bImageBuff, m_ImageTempBuff, m_PicWidth, m_PicHeight, outwidth, outheight, angle); m_PicWidth = outwidth; m_PicHeight = outheight; CHistoPrevDlg::showImage(); delete[] m_ImageTempBuff; m_ImageTempBuff = NULL; #endif #if 0 //使用双线性插值法旋转图象 double angle = 1.5; UINT outwidth; UINT outheight; CHistoPrevDlg::RotateInterpolation(M_bImageBuff, m_ImageTempBuff, m_PicWidth, m_PicHeight, outwidth, outheight, angle); m_PicWidth = outwidth; m_PicHeight = outheight; CHistoPrevDlg::showImage(); delete[] m_ImageTempBuff; m_ImageTempBuff = NULL; #endif //使用GDI+来对图象进行几何变换 #if 0 CDC* pDC = m_stiHistogram.GetDC(); Graphics graph(pDC->GetSafeHdc()); Image* image = Image::FromFile(L"WALL03.jpg"); //一、平移 //1)直接平移坐标系 /* graph.TranslateTransform(70, 50); graph.DrawImage(image, 0, 0, image->GetWidth(),image->GetHeight()); Invalidate(FALSE); */ //2)利用矩阵对象平移坐标系 /* Matrix matrix1; matrix1.Translate(70, 50); graph.SetTransform(&matrix1); graph.DrawImage(image, 0, 0, image->GetWidth(),image->GetHeight()); Invalidate(FALSE); */ //3)自己构建平移矩阵 /* Matrix matrix2(1,0,0,1, 70, 50); graph.SetTransform(&matrix2); graph.DrawImage(image, 0, 0, image->GetWidth(),image->GetHeight()); Invalidate(FALSE); */ //二、缩放 /* 1) 直接缩放坐标系 Rect rect(16, 16, image->GetWidth()*0.5,image->GetHeight()*0.5); //REAL fx = 1.5f; //REAL fy = 1.5f; //graph.ScaleTransform(fx, fy); graph.DrawImage(image,rect); Invalidate(FALSE); */ //利用矩阵对象缩放坐标系 /* Matrix matrix4; matrix4.Scale(1.5,1.5); graph.SetTransform(&matrix4); graph.DrawImage(image,0, 0); Invalidate(FALSE); */ //自己构建缩放矩阵 /* Matrix matrix5(1.5, 0, 0,1.5, 0, 0); graph.SetTransform(&matrix5); graph.DrawImage(image,0, 0); Invalidate(FALSE); */ //三、旋转 //1)直接旋转坐标系 /* graph.RotateTransform(30); graph.DrawImage(image,0, 0); Invalidate(FALSE); */ //2)利用矩阵旋转坐标系 /* Matrix matrix6; matrix6.Rotate(30); graph.SetTransform(&matrix6); graph.DrawImage(image,0, 0); Invalidate(FALSE); */ //3)利用矩阵转换输出控制点 /* Point points[]={Point(0,0),Point(image->GetWidth(),0),Point(0, image->GetHeight())}; Matrix matrix7; matrix7.Rotate(30); matrix7.TransformPoints(points, 3); graph.DrawImage(image,points, 3); Invalidate(FALSE); */ //中心旋转 /* graph.TranslateTransform(100,100); graph.RotateTransform(25); graph.TranslateTransform(-(REAL)(image->GetWidth())/2.0f,-(REAL)(image->GetHeight())/2.0f); graph.DrawImage(image,0, 0); Invalidate(FALSE); */ //变换的组合 /* CRect winRect; GetClientRect(winRect); graph.TranslateTransform(winRect.Width()/2, winRect.Height() / 2); Point points[] = { Point(0,0),Point(image->GetWidth(), 0),Point(0, image->GetHeight()) }; graph.ScaleTransform(0.1, 0.1); for(int i = 0; i < 23; i++) { graph.DrawImage(image, points, 3); Invalidate(FALSE); graph.ScaleTransform(1.1, 1.1); graph.TranslateTransform(50, 0); graph.RotateTransform(30); } */ // 错位 /* Matrix matrix5(1, 1, 2, 1, 0, 0); graph.SetTransform(&matrix5); graph.DrawImage(image,0, 0); Invalidate(FALSE); */ // graph.DrawImage(image,0, 0); // Invalidate(FALSE); #endif RippleEffect(M_bImageBuff,m_ImageTempBuff,m_PicWidth,m_PicHeight,2,1,120,160); // CDialog::OnOK(); } void CHistoPrevDlg::Refresh() { CDC* pDC = m_stiHistogram.GetDC(); CRect rect; CDC memDC; CBitmap MemBitmap; m_stiHistogram.GetClientRect(rect); memDC.CreateCompatibleDC(NULL); MemBitmap.CreateCompatibleBitmap(pDC, rect.Width(),rect.Height()); //选取空白位图 memDC.SelectObject(MemBitmap); memDC.FillSolidRect(0, 0, rect.Width(),rect.Height(),RGB(255,255,255)); //选取缓存作为画布（画图表面） Graphics graph(memDC.GetSafeHdc()); //使用白色背景 graph.FillRectangles(&SolidBrush(Color::White), &Rect(0, 0, rect.Width(),rect.Height()),1); //绘制y轴 graph.DrawLine(&Pen(Color::Black), 10,10,10,280); graph.DrawLine(&Pen(Color::Black), 10,10,5,15); graph.DrawLine(&Pen(Color::Black), 10,10,15,15); //绘制x轴 graph.DrawLine(&Pen(Color::Black), 10,280,290,280); graph.DrawLine(&Pen(Color::Black), 290,280,285,285); graph.DrawLine(&Pen(Color::Black), 290,280,285,275); CString buf; Font font(L"宋体", 10); buf = L"0"; /*---------- 注意!!!!----------*/ int nLen = MultiByteToWideChar(CP_ACP, 0, buf, -1, NULL, 0);//确定转换为Unicode需要多少缓冲区(返回值也包含了最后一个NULL字符)。 WCHAR *wBuf = new WCHAR[nLen]; MultiByteToWideChar(CP_ACP, 0, buf, -1, wBuf, nLen); graph.DrawString(wBuf, -1, &font, PointF(8,290), &SolidBrush(Color::Black)); for(int i = 0; i < 256; i+= 5) { if(i % 50 == 0) graph.DrawLine(&Pen(Color::Black),10+i,280, 10+i, 286); else if(i % 10 ==0) graph.DrawLine(&Pen(Color::Black),10+i,280, 10+i, 283); }