基于OpenCV的canny边缘检测的MFC实现

void CMy_OpencvDlg::OnBnClickedCanny()
{
// TODO:  在此添加控件通知处理程序代码
IplImage* img_canny = cvCreateImage(cvSize(m_img.width,m_img.height),IPL_DEPTH_8U,
1);
cvCanny(&m_img,img_canny,0,200,3);
CDC* pDC = GetDlgItem(IDC_PIC_PROCESS)->GetDC();
HDC hDC = pDC->GetSafeHdc();
CvvImage cimg;
cimg.CopyOf(img_canny);
CRect rect;
GetDlgItem(IDC_PIC_PROCESS)->GetClientRect(&rect);
cimg.DrawToHDC(hDC, &rect);
ReleaseDC(pDC);
}