Question

I just started using openCV (version 2.4.1) in visual studio 2008 on windows 7. I did the installation and the “hello world” program as described in

http://opencv.willowgarage.com/wiki/VisualC%2B%2B

and

How to install OpenCV 2.0 on win32

Thanks to these instruction my program compiles fine without any errors. But when I first ran it I got error that files opencv_core241d.dll and tbb_debug.dll are missing. So obviously something didn’t get set right but as per the instruction in first link I copied these files to the same folder where the exe is sitting, Ran it third time and now I am getting the popup about libgcc_s_dw2-1.dll missing. I have done a search on my computer and no such dll is available.

I have researched this online and haven’t seen any real solution online about some issues like this. My guess is with the multiple dll being missing openCV didn;t get installed properly but I have no idea what really is going on.

Any help is desperately needed and will be appreciated heavily by my hairs and scalp.

Answer 1

Follow these steps and try.

1. Extract OpenCV 2.4.x into your main partition (I’ll assume C\{opencvdir})

2. Add C\{opencvdir}\build\x86\vc9\bin to environmental variable’s path variable. And restart your computer (These settings are for 32bit (x86) Windows version and Visual Studio 2008 (VC9)).

3. Now create a new Visual Studio project and add your sample OpenCV code.

4. Go to project Properties -> Configuration Properties -> C/C++ -> General -> Additional Directories and add:

   "C\{opencvdir}\include";
   "C\{opencvdir}\include\opencv";
   "C\{opencvdir}\include\opencv2"
   

5. Go to project Properties -> Configuration Properties -> Linker -> Input -> Additional Dependencies and add:

   "C\{opencvdir}\build\x86\vc9\lib\opencv_core240.lib";
   "C\{opencvdir}\build\x86\vc9\lib\opencv_highgui240.lib";
   "C\{opencvdir}\build\x86\vc9\lib\opencv_imgproc240.lib";
   "C\{opencvdir}\build\x86\vc9\lib\opencv_video240.lib"
   

   (These libraries are for a basic application. Add more as your application needs them).

6. Now run your project.

P.S. My recommendation is to use Visual Studio 2010 with OpenCV 2.3.x or higher.