issue with imread of opencv2.4.5

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I do not agree on this. Version 2.4.5 has been released as stable, and as mentioned in my comment, if an application reading images of 1500 x 1500 pixels, keeps running over 3 days none stop, then I doubt there would actually be a memory leak...

Hi, I just use debug mode to test program, I am not sure release mode is the sme or not. But I am sure in my computer every time i use imread ,and close the application.MFC shows memory leak message.

But that doesn't mean that the imread causes the memory leak. What do you do with the object where the imread data is stored? Can you post some code? It seems to me you are using old data structures and forget to delete them manually...

HI,I post my code: void CHRMGDlg::OnBnClickedOpenfile() { CFileDialog dlg ( TRUE, _T(".bmp"), NULL, OFN_FILEMUSTEXIST | OFN_PATHMUSTEXIST | OFN_HIDEREADONLY|OFN_EXPLORER, _T("BMP(.bmp)|.bmp|JPG(.jpg)|.jpg|All Files (.) |.||"), NULL ); dlg.m_ofn.lpstrTitle = _T("Open Image File"); dlg.m_ofn.lpstrInitialDir="D:\20130319" ;

CString str1,str2;

if( dlg.DoModal() == IDOK ) 
{
    str2=dlg.GetPathName();
    src=cv::imread(str2.GetBuffer(),CV_LOAD_IMAGE_ANYCOLOR);// src is gobal

} }

void CHRMGDlg::OnPaint() { ........ CDC *pDC = GetDC(); CDC memDC; memDC.CreateCompatibleDC(pDC); CBitmap memBmp; CRect clipRect; GetDlgItem(IDC_SHOWIMG)->GetClientRect(clipRect); ShowImg(pDC, dst,&m_dcMem,offsetx,offsety,m_size.cx,m_size.cy,sourcex, sourcey ) } i

I do not do every thing. I am sure.If you want all file i can give to to test.dst is gobal, dst=src; InvalidateRect(&rectStaticClient);

It is normal that you are getting a memory leak. The new C++ interface is created to destroy the objects when leaving the scope. Using global variables however make this impossible so require you to delete them manually at the end. Create the src Mat inside the loop, and you will see that there will be no memory leak.

So,you mean when I close the applicaion i must delete mat variable ,if the varible is global. But why i can't see any memory leak in opencv2.4.3