Recently I tried to install OpenCV 2.1 with pre-built package released on the official website for my Windows 7 64-bit laptop. It turns out that OpevnCV 2.1 doesn’t marry well with 64-bit windows system (after 1 day googling).

With VC++ 2010, compiling in debug mode is fine but the runtime kept crashing with some mysterious error code. The weird thing is with release mode both compiling and runtime is fine. Then I tried to compile OpenCV 2.1 by myself using VC++ 2010 (by CMake), the compiling process was OK, which gave me a number of *.lib and *.dll files, but it resulted in both modes runtime error.

It might work with MinGW since with ubuntu 10.10 it is fairly smooth.  Let’s see if OpenCV 2.2.0 would fix the issue.

Currently I would focus on Linux version first.