Memory Heap Corruption using cv::SURF (Bug #325)

This is actually with openCV version 2.1 (not one of the options below), though it was there in 2.0 also. When using the C++ interface, the SURF class, the operator() function is used to actually find feature points inside an image. The bug appears when using this function in debug mode (I have compiled openCV libraries in debug mode, together with my code). This is with Microsoft Visual Studio 2008. The function operator() runs fine and returns. However, when the calling function goes to return, it crashes. Visual studio says "This may be due to a corruption of the heap"

The problem is caused by the .resize() command called on line 895. Because this is allocating memory while inside the dll, but the release of memory occurs outside of the DLL, there is a memory heap corruption. This is a known problem with passing STL library items across DLL function calls and allocation/de-allocating across these boundaries. See "http://support.microsoft.com/kb/172396".

I really don't know how to fix it, except to not use the C++ interface and go with the older C interface as shown in find_obj.cpp. It seems a shame to have an interface that can't actually be used, however. :) Because I am trying to use the flann class, I have also had to copy significant portions of cvsurf.cpp into my code to get it to work. I am attaching the function that calls the SURF library that causes the error. Note that "BROKEN" must be defined to get the error.