Configure MinGW + CodeBlocks + OpenCV2.3.1 in Windows 7

1. Download The mingw-get-inst-20111118: http://sourceforge.net/projects/mingw /;

2、double-click mingw-get-inst-20111118.exe. You can select the desired component by default;

 

3. Add MinGW environment variables: Select computer> right-click> select Properties> advanced system Settings> advanced> click environment variables> select PATH and click Edit, add C: \ MinGW \ bin to the environment variable, click OK, and enter gcc in cmd. If the prompt is fatal and no file is input, the installation is successful.

4. Download codeblocks-10.05mingw-setup: http://www.codeblocks.org/downloads/26;

5, double-click codeblocks-10.05mingw-setup, installation directory is best do not have Chinese or space, components according to their needs to choose, after the completion of the desktop will generate a CodeBlocks icon;

6. Double-click the CodeBlocks icon on the desktop and you will be prompted to select a default Compiler. Select gnu gcc Compiler and select Yes and associate Code in File associations :: blocks with C/C ++ file types;

7. Create a simple console application: File --> New --> Project... --> Projects, select Console application, click Go --> Next --> select C ++, and click Next --> Project title: projiect1; Folder to create project in: F: \ test \ codeblocks; Project filename: project1.white; Resulting filename: F: \ test \ codeblocks \ project1 \ project1.white; click Next --> default. Click Finish to generate a main by default. cpp file, compile and run it.

8. Download OpenCV2.3.1: http://www.opencv.org.cn/index.php/Download;

9. Download and decompress: OpenCV-2.3.1-win-superpack.exe to generate an opencv folder;

10. Download CMake: http://www.cmake.org/cmake/resources/software.html;

11. Install CMake;

12. Run CMake (cmake-gui) and enter the decompressed file path in where is the source code, such as D:/soft/OpenCV2.3.1, fill in the where to build the binaries file with the path to be stored during compilation, for example, D:/soft/OpenCV2.3.1/MinGW. This MinGW folder needs to be created by yourself;

13. Click Configure. In Specify the generator for this project, select MinGW Makefiles, select Specify native compilers, and click Next;

14. for Compilers: C, select the directory C:/MinGW/bin/gcc.exe; for C ++, select the directory C:/MinGw/bin/gw.20.cmd.exe and click Finish;

15. Select CMAKE_BUILD_TYPE and Debug;

16. Select BUILD_EXAMPLES;

17. Click Configure again;

18. Click Generate;

19, open the command prompt, enter the Directory D:/soft/OpenCV2.3.1/MinGW, enter the mingw32-make, press ENTER;

20, enter the mingw32-make install, press enter, Debug version compiled;

21. Return to the console application created in step 1, Project --> Build options... --> Select Debug, Linker settings --> Link libraries --> Add library: D: \ soft \ OpenCV2.3.1 \ MinGW \ install \ lib \ libopencv_calib3d231d.dll.a and others. dll. file a, click OK;

22. Select Search directories --> Compiler --> Add D: \ soft \ OpenCV2.3.1 \ MinGW \ install \ include;

23. Select Search directories --> Linker --> Add D: \ soft \ OpenCV2.3.1 \ MinGW \ install \ lib;

The Code is as follows:

# Include <iostream>

# Include <opencv2/opencv. hpp>

 

Using namespace std;

 

Int main ()

{

Cout <"Hello world! "<Endl;

 

IplImage * pImg;

 

PImg = cvLoadImage ("F: \ base.jpg", 2 | 4 );

 

CvNamedWindow ("Image", 1 );

CvShowImage ("Image", pImg );

 

CvWaitKey (0 );

 

CvDestroyWindow ("Image ");

CvReleaseImage (& pImg );

 

Return 0;

}

24. Test the corresponding dynamic library to the Debug folder, such as libopencv_core231d.dll and libopencv_highgui231d.dll. Run the command to display an image.

25. Just now, CMake only generates the Debug file. to generate the Release file, repeat steps 12 to 20. You must select CMAKE_BUILD_TYPE and select Release.


Author fengbingchun