打開圖片：

void CImageProDlg::OnImageopen()
{
    // TODO:  在此添加命令處理程序代碼
    Invalidate();
    CFileDialog dlg(TRUE, NULL, NULL, OFN_FILEMUSTEXIST | OFN_PATHMUSTEXIST | OFN_READONLY,
        TEXT("Supported Types (*.jpg;*.png;*.gif;*.bmp;...)|*.jpg;*.png;*.gif;*.bmp|Tiff(*.tiff;*.tif)|*.tiff;*.tif|All Files(*.*)|*.*||
 
"), NULL);
    dlg.m_ofn.nFilterIndex = 1;
    dlg.m_ofn.hwndOwner = m_hWnd;
    dlg.m_ofn.lStructSize = sizeof(OPENFILENAME);
    dlg.m_ofn.lpstrTitle = TEXT("Opening Image...\0");
    dlg.m_ofn.nMaxFile = MAX_PATH;
    if (dlg.DoModal() == IDOK)
    {
        m_path = dlg.GetPathName();
        m_capacity 
 
= TRUE;
        UpdateData(FALSE);
    }
    else
        return;
    //左邊圖片控件顯示圖片
    //string s_path(m_path.GetBuffer());  //這樣就要#include <string.h>
    char *s_path;
    s_path = m_path.GetBuffer(m_path.GetLength());   //將CString轉化為Char * 格式
        //m_StaticPath.SetWindowTextA(m_path);  //將圖片路徑顯示到靜態文本控件
 

    Mat Mat_image = imread(s_path, 1);
    SavedImage = Mat_image;  //全局變量
    IplImage image = Mat_image;
    DrawPicToHDC(&image, ID_SHOWLEFT);
}

保存圖片：

（需輸入完整路徑，包括拓展名）

void CImageProDlg::OnSaveas()
{
    // TODO:  在此添加命令處理程序代碼
    if (m_capacity)
    {
        CFileDialog dlg(FALSE, NULL, NULL, OFN_FILEMUSTEXIST | OFN_PATHMUSTEXIST | OFN_READONLY,
            TEXT("Supported Types (*.jpg;*.png;*.gif;*.bmp;...)|*.jpg;*.png;*.gif;*.bmp|Tiff(*.tiff;*.tif)|*.tiff;*.tif|All Files(*.*)|*.*||"), NULL);
        dlg.m_ofn.nFilterIndex = 1;
        dlg.m_ofn.hwndOwner = m_hWnd;
        dlg.m_ofn.lStructSize = sizeof(OPENFILENAME);
        dlg.m_ofn.lpstrTitle = TEXT("Saving Image...[Meantime input extension name! ]\0");
        dlg.m_ofn.nMaxFile = MAX_PATH;
        CString strPath(""), strExt("");
        char write[10000];
        if (dlg.DoModal() == IDOK)
        {
            strPath = dlg.GetPathName(); //文件名
            char *s_path;
            s_path = strPath.GetBuffer(strPath.GetLength());
            imwrite(s_path, SavedImage);
            strPath.ReleaseBuffer();
        }
    }
    else
        MessageBox("還未選擇原始圖片，無法保存圖片！");
}

#OpenCV##MFC#利用MFC和OpenCV通過系統對話框打開和保存圖片