将Mat图像显示到MFC PictureControl控件上

来源：互联网发布：w3school sql 编辑：程序博客网时间：2024/05/17 05:07
void CCameraTimeDlg::ShowMatImage(Mat& src){    try    {        if (src.empty())//没有图像时推出        {            return;        }        BITMAPINFO *pBmpInfo1;        if(src.channels()== 1)//灰度图像显示        {            pBmpInfo1=(BITMAPINFO *)new char[sizeof(BITMAPINFOHEADER)+256*sizeof(RGBQUAD)];////bmp图信息头              pBmpInfo1->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);            pBmpInfo1->bmiHeader.biWidth = src.cols;//src_rec.Width();            pBmpInfo1->bmiHeader.biHeight =-src.rows; //-src_rec.Height();//为负值            pBmpInfo1->bmiHeader.biPlanes = 1;            pBmpInfo1->bmiHeader.biBitCount = 8;//八位            pBmpInfo1->bmiHeader.biCompression = BI_RGB;            pBmpInfo1->bmiHeader.biSizeImage = 0;            pBmpInfo1->bmiHeader.biXPelsPerMeter = 0;            pBmpInfo1->bmiHeader.biYPelsPerMeter = 0;            pBmpInfo1->bmiHeader.biClrUsed = 0;            pBmpInfo1->bmiHeader.biClrImportant = 0;            for(int i = 0;i<256;i++)//只有灰度图像需要颜色表            {                pBmpInfo1->bmiColors[i].rgbBlue = pBmpInfo1->bmiColors[i].rgbGreen = pBmpInfo1->bmiColors[i].rgbRed = (BYTE)i;                pBmpInfo1->bmiColors[i].rgbReserved = 0;            }        }        if(src.channels()== 3)        {            pBmpInfo1=(BITMAPINFO*) new char[sizeof(BITMAPINFOHEADER)];            pBmpInfo1->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);            pBmpInfo1->bmiHeader.biWidth = src.cols;//src_rec.Width();            pBmpInfo1->bmiHeader.biHeight =-src.rows; //-src_rec.Height();//为负值            pBmpInfo1->bmiHeader.biPlanes = 1;            pBmpInfo1->bmiHeader.biBitCount = 24;//24位            pBmpInfo1->bmiHeader.biCompression = BI_RGB;            pBmpInfo1->bmiHeader.biSizeImage = 0;            pBmpInfo1->bmiHeader.biXPelsPerMeter = 0;            pBmpInfo1->bmiHeader.biYPelsPerMeter = 0;            pBmpInfo1->bmiHeader.biClrUsed = 0;            pBmpInfo1->bmiHeader.biClrImportant = 0;        }        HDC h_dc=GetDlgItem(IDC_PIC_Corrected)->GetDC()->GetSafeHdc();        CRect BoxSize;        GetDlgItem(IDC_PIC_Corrected)->GetClientRect(&BoxSize);        SetStretchBltMode(            h_dc,           // handle to device context            HALFTONE );        int jj=StretchDIBits(h_dc,BoxSize.left,BoxSize.top,BoxSize.Width(),BoxSize.Height(),0,0,src.cols,src.rows,(void *)src.data,            (BITMAPINFO*)pBmpInfo1,DIB_RGB_COLORS,SRCCOPY);        delete []pBmpInfo1;        return;    }    catch (...)    {        return;    }}
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