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C++ 使用OpenCV 2.4在MFC SDI视图或控件中加载图像_C++_Opencv_Mfc_Controls - Fatal编程技术网

C++ 使用OpenCV 2.4在MFC SDI视图或控件中加载图像

C++ 使用OpenCV 2.4在MFC SDI视图或控件中加载图像,c++,opencv,mfc,controls,C++,Opencv,Mfc,Controls,在旧版本的opencv中,我们有一个类似CvvImage的类,可以很容易地用于MFC控件来显示摄像头图像或opencv中的简单图像。但是在2.4或2.3中,这个支持是由OpenCV完成的,我想知道在新版本中是否还有其他类 我的应用程序是MFC SDI和inside view,我正在使用OnPaint功能。在以前的opencv中,我使用了如下绘制函数 void CRightCameraView::OnPaint() { CPaintDC dc(this); // device contex

在旧版本的opencv中,我们有一个类似CvvImage的类,可以很容易地用于MFC控件来显示摄像头图像或opencv中的简单图像。但是在2.4或2.3中,这个支持是由OpenCV完成的,我想知道在新版本中是否还有其他类

我的应用程序是MFC SDI和inside view,我正在使用OnPaint功能。在以前的opencv中,我使用了如下绘制函数

void CRightCameraView::OnPaint()
{
    CPaintDC dc(this); // device context for painting
    m_CVvimageObj.CopyOf(m_iplImageFrame); //copy IplImage frame

    if(m_bImageDisplay)
    {
    m_CVvimageObj.Show(dc.GetSafeHdc(),10,0,m_CVvimageObj.Width(),m_CVvimageObj.Height());
    }


}

请指导我,哪一个是最新版本的类做同样的事情,并支持这样的直流控制的MFC。

因为我找不到答案,我想帮助别人我做了什么

我已经手动提取了cvvimage类并将其添加到我的项目中,然后我做了以下操作

在我的视图头文件中,我声明

CvvImage m_CVvImageObj;
cv::Mat m_matImage;
在视图的CPP文件中,我在初始化函数中调用了以下命令

m_matImage = cv::imread(strA.GetBuffer(),CV_LOAD_IMAGE_COLOR);   // Read the file

if(! m_matImage.data )                              // Check for invalid input
{
    AfxMessageBox(L"Could not open or find the image");
}


 IplImage iplimg = m_matImage;
 m_CVvImageObj.CopyOf(&iplimg);
 UpdateData();
 Invalidate();
在我添加的OnPaint inside view的overided函数中

if(m_CVvImageObj.GetImage())
{       
    //m_CurrentFrame.Show
        m_CVvImageObj.Show(dc.GetSafeHdc(),10,0,m_CVvImageObj.Width(),m_CVvImageObj.Height());
}
Cvvimage h文件如下所示

#pragma once

//#pragma once  
#ifndef CVVIMAGE_CLASS_DEF  
#define CVVIMAGE_CLASS_DEF  

#include <opencv2\highgui\highgui.hpp>    
class CvvImage  
{  
public:  
    CvvImage();  
    virtual ~CvvImage();  

    virtual bool Create( int width, int height, int bits_per_pixel, int image_origin = 0 );  
    virtual bool Load( const char* filename, int desired_color = 1 );  
    virtual bool LoadRect( const char* filename,  

    int desired_color, CvRect r );  

#if defined WIN32 || defined _WIN32  
    virtual bool LoadRect( const char* filename,int desired_color, RECT r )  
    {  
        return LoadRect( filename, desired_color,  
            cvRect( r.left, r.top, r.right - r.left, r.bottom - r.top ));  
    }  
#endif  

    virtual bool Save( const char* filename );  
    virtual void CopyOf( CvvImage& image, int desired_color = -1 );  
    virtual void CopyOf( IplImage* img, int desired_color = -1 );  
    IplImage* GetImage() { return m_img; };  
    virtual void Destroy(void);  
    int Width() { return !m_img ? 0 : !m_img->roi ? m_img->width : m_img->roi->width; };  
    int Height() { return !m_img ? 0 : !m_img->roi ? m_img->height : m_img->roi->height;};  
    int Bpp() { return m_img ? (m_img->depth & 255)*m_img->nChannels : 0; };  
    virtual void Fill( int color );  
    virtual void Show( const char* window );  

#if defined WIN32 || defined _WIN32  
    virtual void Show( HDC dc, int x, int y, int width, int height,  
        int from_x = 0, int from_y = 0 );  
    virtual void DrawToHDC( HDC hDCDst, RECT* pDstRect );  
    virtual void DrawToHDC( HDC hDCDst, CvRect pDstRect ); 
#endif  

protected:

    IplImage* m_img;

};

typedef CvvImage CImage;

#endif
#pragma一次
//#布拉格语一次
#ifndef CVVIMAGE_CLASS_DEF
#定义CVVIMAGE_CLASS_DEF
#包括
类CVV图像
{  
公众:
CvvImage();
虚拟的~CvvImage();
虚拟布尔创建(整数宽度、整数高度、整数位/像素、整数图像原点=0);
虚拟布尔加载(常量字符*文件名,int所需颜色=1);
虚拟bool LoadRect(常量字符*文件名,
int所需颜色,CvRect r);
#如果已定义WIN32 | |已定义_WIN32
虚拟bool LoadRect(const char*文件名,int所需颜色,RECT r)
{  
返回LoadRect(文件名、所需颜色、,
cvRect(右左,右上,右右-右左,右下-右上));
}  
#恩迪夫
虚拟布尔保存(常量字符*文件名);
虚拟空拷贝(CvvImage&image,所需的int_color=-1);
虚拟无效复制(IplImage*img,int所需颜色=-1);
IplImage*GetImage(){return m_img;};
虚空破坏(void);
int Width(){return!m_img?0:!m_img->roi?m_img->Width:m_img->roi->Width;};
int Height(){return!m_img?0:!m_img->roi?m_img->Height:m_img->roi->Height;};
int Bpp(){返回m_img?(m_img->depth&255)*m_img->nChannels:0;};
虚拟空白填充(int颜色);
虚拟无效显示(常量字符*窗口);
#如果已定义WIN32 | |已定义_WIN32
虚拟虚空显示(HDC dc、整数x、整数y、整数宽度、整数高度、,
_x=0的整数,_y=0的整数);
虚拟空位DrawToHDC(HDC hDCDst,RECT*pDstRect);
虚拟空洞拉伸至HDC(HDC hDCDst、CvRect pDstRect);
#恩迪夫
受保护的:
IplImage*m_img;
};
typedef-CvvImage-CImage;
#恩迪夫
cvvimage类的CPP文件如下

///////////////////////////////////////////////////////////////////////////////////////////////////
//CvvImage.cpp

#include "StdAfx.h"  
#include "CvvImage.h"
///////////////////////////////////////////////////////////////////////////////////////////////////

CV_INLINE RECT NormalizeRect( RECT r );
CV_INLINE RECT NormalizeRect( RECT r )
{
    int t;
    if( r.left > r.right )
    {
        t = r.left;
        r.left = r.right;
        r.right = t;
    }
    if( r.top > r.bottom )
    {
        t = r.top;
        r.top = r.bottom;
        r.bottom = t;
    }

    return r;
}
CV_INLINE CvRect RectToCvRect( RECT sr );
CV_INLINE CvRect RectToCvRect( RECT sr )
{
    sr = NormalizeRect( sr );
    return cvRect( sr.left, sr.top, sr.right - sr.left, sr.bottom - sr.top );
}
CV_INLINE RECT CvRectToRect( CvRect sr );
CV_INLINE RECT CvRectToRect( CvRect sr )
{
    RECT dr;
    dr.left = sr.x;
    dr.top = sr.y;
    dr.right = sr.x + sr.width;
    dr.bottom = sr.y + sr.height;

    return dr;
}
CV_INLINE IplROI RectToROI( RECT r );
CV_INLINE IplROI RectToROI( RECT r )
{
    IplROI roi;
    r = NormalizeRect( r );
    roi.xOffset = r.left;
    roi.yOffset = r.top;
    roi.width = r.right - r.left;
    roi.height = r.bottom - r.top;
    roi.coi = 0;

    return roi;
}
void FillBitmapInfo( BITMAPINFO* bmi, int width, int height, int bpp, int origin )
{
    assert( bmi && width >= 0 && height >= 0 && (bpp == 8 || bpp == 24 || bpp == 32));

    BITMAPINFOHEADER* bmih = &(bmi->bmiHeader);

    memset( bmih, 0, sizeof(*bmih));
    bmih->biSize = sizeof(BITMAPINFOHEADER);
    bmih->biWidth = width;
    bmih->biHeight = origin ? abs(height) : -abs(height);
    bmih->biPlanes = 1;
    bmih->biBitCount = (unsigned short)bpp;
    bmih->biCompression = BI_RGB;
    if( bpp == 8 )
    {
        RGBQUAD* palette = bmi->bmiColors;
        int i;
        for( i = 0; i < 256; i++ )
        {
            palette[i].rgbBlue = palette[i].rgbGreen = palette[i].rgbRed = (BYTE)i;
            palette[i].rgbReserved = 0;
        }
    }
}
CvvImage::CvvImage()
{
    m_img = 0;
}
void CvvImage::Destroy()
{
    cvReleaseImage( &m_img );
}
CvvImage::~CvvImage()
{
    Destroy();
}
bool CvvImage::Create( int w, int h, int bpp, int origin )
{
    const unsigned max_img_size = 10000;

    if( (bpp != 8 && bpp != 24 && bpp != 32) ||
        (unsigned)w >= max_img_size || (unsigned)h >= max_img_size ||
        (origin != IPL_ORIGIN_TL && origin != IPL_ORIGIN_BL))
    {
        assert(0); // most probably, it is a programming error
        return false;
    }
    if( !m_img || Bpp() != bpp || m_img->width != w || m_img->height != h )
    {
        if( m_img && m_img->nSize == sizeof(IplImage))
            Destroy();

        m_img = cvCreateImage( cvSize( w, h ), IPL_DEPTH_8U, bpp/8 );
    }
    if( m_img )
        m_img->origin = origin == 0 ? IPL_ORIGIN_TL : IPL_ORIGIN_BL;
    return m_img != 0;
}
void CvvImage::CopyOf( CvvImage& image, int desired_color )
{
    IplImage* img = image.GetImage();
    if( img )
    {
        CopyOf( img, desired_color );
    }
}
#define HG_IS_IMAGE(img) \
    ((img) != 0 && ((const IplImage*)(img))->nSize == sizeof(IplImage) && \
    ((IplImage*)img)->imageData != 0)
void CvvImage::CopyOf( IplImage* img, int desired_color )
{
    if( HG_IS_IMAGE(img) )
    {
        int color = desired_color;
        CvSize size = cvGetSize( img ); 
        if( color < 0 )
            color = img->nChannels > 1;
        if( Create( size.width, size.height,
            (!color ? 1 : img->nChannels > 1 ? img->nChannels : 3)*8,
            img->origin ))
        {
            cvConvertImage( img, m_img, 0 );
        }
    }
}
bool CvvImage::Load( const char* filename, int desired_color )
{
    IplImage* img = cvLoadImage( filename, desired_color );
    if( !img )
        return false;

    CopyOf( img, desired_color );
    cvReleaseImage( &img );

    return true;
}
bool CvvImage::LoadRect( const char* filename,
                        int desired_color, CvRect r )
{
    if( r.width < 0 || r.height < 0 ) return false;


    IplImage* img = cvLoadImage( filename, desired_color );
    if( !img )
        return false;
    if( r.width == 0 || r.height == 0 )
    {
        r.width = img->width;
        r.height = img->height;
        r.x = r.y = 0;
    }
    if( r.x > img->width || r.y > img->height ||
        r.x + r.width < 0 || r.y + r.height < 0 )
    {
        cvReleaseImage( &img );
        return false;
    }

    if( r.x < 0 )
    {
        r.width += r.x;
        r.x = 0;
    }
    if( r.y < 0 )
    {
        r.height += r.y;
        r.y = 0;
    }
    if( r.x + r.width > img->width )
        r.width = img->width - r.x;

    if( r.y + r.height > img->height )
        r.height = img->height - r.y;
    cvSetImageROI( img, r );
    CopyOf( img, desired_color );
    cvReleaseImage( &img );
    return true;
}
bool CvvImage::Save( const char* filename )
{
    if( !m_img )
        return false;
    cvSaveImage( filename, m_img );
    return true;
}
void CvvImage::Show( const char* window )
{
    if( m_img )
        cvShowImage( window, m_img );
}
void CvvImage::Show( HDC dc, int x, int y, int w, int h, int from_x, int from_y )
{
    if( m_img && m_img->depth == IPL_DEPTH_8U )
    {
        uchar buffer[sizeof(BITMAPINFOHEADER) + 1024];
        BITMAPINFO* bmi = (BITMAPINFO*)buffer;
        int bmp_w = m_img->width, bmp_h = m_img->height;
        FillBitmapInfo( bmi, bmp_w, bmp_h, Bpp(), m_img->origin );
        from_x = MIN( MAX( from_x, 0 ), bmp_w - 1 );
        from_y = MIN( MAX( from_y, 0 ), bmp_h - 1 );
        int sw = MAX( MIN( bmp_w - from_x, w ), 0 );
        int sh = MAX( MIN( bmp_h - from_y, h ), 0 );
        SetDIBitsToDevice(
            dc, x, y, sw, sh, from_x, from_y, from_y, sh,
            m_img->imageData + from_y*m_img->widthStep,
            bmi, DIB_RGB_COLORS );
    }
}
void CvvImage::DrawToHDC( HDC hDCDst, RECT* pDstRect ) 
{
    if( pDstRect && m_img && m_img->depth == IPL_DEPTH_8U && m_img->imageData )
    {
        uchar buffer[sizeof(BITMAPINFOHEADER) + 1024];
        BITMAPINFO* bmi = (BITMAPINFO*)buffer;
        int bmp_w = m_img->width, bmp_h = m_img->height;
        CvRect roi = cvGetImageROI( m_img );
        CvRect dst = RectToCvRect( *pDstRect );
        if( roi.width == dst.width && roi.height == dst.height )
        {
            Show( hDCDst, dst.x, dst.y, dst.width, dst.height, roi.x, roi.y );
            return;
        }
        if( roi.width > dst.width )
        {
            SetStretchBltMode(
                hDCDst, // handle to device context
                HALFTONE );
        }
        else
        {
            SetStretchBltMode(
                hDCDst, // handle to device context
                COLORONCOLOR );
        }
        FillBitmapInfo( bmi, bmp_w, bmp_h, Bpp(), m_img->origin );
        ::StretchDIBits(hDCDst,dst.x, dst.y, dst.width, dst.height,roi.x, roi.y, roi.width, roi.height,\
            m_img->imageData, bmi, DIB_RGB_COLORS, SRCCOPY );
    }
}
void CvvImage::DrawToHDC( HDC hDCDst, CvRect pDstRect )
{
    RECT rDest=CvRectToRect(pDstRect);
    DrawToHDC(hDCDst,&rDest);
}
void CvvImage::Fill( int color )
{
    cvSet( m_img, cvScalar(color&255,(color>>8)&255,(color>>16)&255,(color>>24)&255) );
}
///////////////////////////////////////////////////////////////////////////////////////////////////
//CvvImage.cpp
#包括“StdAfx.h”
#包括“CvvImage.h”
///////////////////////////////////////////////////////////////////////////////////////////////////
CV_内联矩形(矩形r);
CV_内联矩形(矩形r)
{
int t;
如果(右左>右)
{
t=r.left;
r、 左=右;
r、 右=t;
}
如果(右上>右下)
{
t=r.top;
r、 顶部=r.底部;
r、 底部=t;
}
返回r;
}
CV_内联CvRect RECTOCVRECT(RECT sr);
CV_内联CvRect RECTOCVRECT(RECT sr)
{
sr=sr;
返回cvRect(sr.left,sr.top,sr.right-sr.left,sr.bottom-sr.top);
}
CV_内联RECT CVRECTORECT(CvRect sr);
CV_内联RECT CVRECTORECT(CvRect sr)
{
直肠dr;
dr.left=sr.x;
dr.top=sr.y;
dr.right=sr.x+sr.width;
dr.bottom=sr.y+sr.height;
返回dr;
}
CV_内联IplROI直肠(直肠r);
CV_内联IplROI直肠(直肠r)
{
IplROI roi;
r=垂直(r);
roi.xOffset=r.left;
roi.yOffset=r.top;
roi.width=r.right-r.left;
roi.height=r.bottom-r.top;
roi.coi=0;
返回roi;
}
void FillBitmapInfo(BITMAPINFO*bmi、整型宽度、整型高度、整型bpp、整型原点)
{
断言(bmi&&width>=0&&height>=0&&bpp==8 | | bpp==24 | | bpp==32));
BitMapInfo头文件*bmih=&(bmi->bmiHeader);
memset(bmih,0,sizeof(*bmih));
bmih->biSize=sizeof(BitMapInfo标头);
bmih->biWidth=宽度;
bmih->biHeight=原点?abs(高度):-abs(高度);
bmih->双平面=1;
bmih->biBitCount=(无符号短)bpp;
bmih->双压缩=双RGB;
如果(bpp==8)
{
RGBQUAD*调色板=bmi->bmi颜色;
int i;
对于(i=0;i<256;i++)
{
调色板[i]。rgbBlue=调色板[i]。rgbGreen=调色板[i]。rgbRed=(字节)i;
调色板[i].rgbReserved=0;
}
}
}
CvvImage::CvvImage()
{
m_img=0;
}
void CvvImage::Destroy()
{
cvReleaseImage&m_img;
}
CvvImage::~CvvImage()
{
破坏();
}
bool-CvvImage::创建(int-w、int-h、int-bpp、int-origin)
{
常数无符号最大值=10000;
如果((bpp!=8&&bpp!=24&&bpp!=32)||
(无符号)w>=max|img|u size |(无符号)h>=max|img|u size||
(来源!=IPL\U来源\U TL&&origin!=IPL\U来源\U BL))
{
assert(0);//很可能是编程错误
返回false;
}
如果(!m|img | Bpp()!=Bpp | m|img->宽度!=w | m|img->高度!=h)
{
如果(m_img&&m_img->nSize==sizeof(IplImage))
破坏();
m_img=cvCreateImage(cvSize(w,h),IPL_DEPTH_8U,bpp/8);
}
如果(m_img)
m_img->origin=origin==0?IPL_origin\u TL:IPL_origin\u BL;
返回m_img!=0;
}
void CvvImage::CopyOf(CvvImage&image,int所需颜色)
{
IplImage*img=image.GetImage();
如果(img)
{
复印件(img,所需颜色);
}
}
#定义HG_是_图像(img)\
((img)!=0&((const-IplImage*)(img))->nSize==sizeof(IplImage)&&\
((IplImage*)img)->图像数据!=0)
无效CvvImage::副本(IplImage*img,int desi
void CvlistDlg::OnBnClickedRead()
{
    CString     FilePathName;
    CString     FileName;
    CFileDialog openVideo(true);
    openVideo.m_ofn.lpstrTitle = _T("Open");
    if (IDOK == openVideo.DoModal()){
        FileName = openVideo.GetFileName();
        FilePathName = openVideo.GetPathName();
        _currentFile._fileName = FileName;
        _currentFile._filePath = FilePathName;
    }
 }
void CvlistDlg::OnBnClickedOk(){
    cv::Mat img = cv::imread(str);
    CDC *pDC = GetDlgItem(IDC_Pic)->GetDC();
    HDC hDC = pDC->GetSafeHdc();
    CRect rect;
    GetDlgItem(IDC_Pic)->GetClientRect(&rect);
    int rw = rect.right - rect.left;     //the width of your picture control
    int rh = rect.bottom - rect.top;
    if (!img.data){
        MessageBox(_T("read picture fail!"));
        return;
    }
    cv::resize(img, img, cv::Size(rw, rh));     
    IplImage iplimg = img;
    m_CVvImageObj.CopyOf(&iplimg);
    UpdateData();
    if (m_CVvImageObj.GetImage()){
        m_CVvImageObj.Show(pDC->GetSafeHdc(), 0, 0, rw, rh);
    }
}
  border = 4 - (img.cols % 4);
  if ( (border<4 && border > 0) || img.isContinuous() == false)
  {
    cv::copyMakeBorder(img, tmpImg, 0, 0, 0, border, cv::BORDER_CONSTANT, 0);
  }
  else
    tmpImg = img
   uchar buffer[sizeof(BITMAPINFO) + 1024];
   BITMAPINFO* bmi = (BITMAPINFO*)buffer;
   BITMAPINFOHEADER* bmih = &(bmi->bmiHeader);
   bmih->biBitCount = 8*img.elemenSize()
   bmih->biWidth = tmpImg.cols;
   bmih->biHeight = -tmpImg.rows;// DIB are bottom ->top
   bmih->...

  //The palette is required for grey image
  if (bmih->biBitCount == 8)
  {
    RGBQUAD* palette = bmi->bmiColors;
    for (int i = 0; i < 256; i++)
    {
      palette[i].rgbBlue = palette[i].rgbGreen = palette[i].rgbRed = (BYTE)i;
      palette[i].rgbReserved = 0;
    }
  }
imgH = img.rows;
imgW = img.cols; //use original cols  to avoid border

ClientDC hDC(WinCtrl);

//rr is relative to control
RECT rr; WinCtrl->GetClientRect(&rr);  

StretchDIBits(hDC,
  0, 0, rr.right, rr.bottom,
  0, 0, imgW, imgH,
  tmpImg.data, bmi, DIB_RGB_COLORS, SRCCOPY);