So many of us always face problems in configuring OpenCV with Code::Blocks, I am also not an exception. I faced a lot of problems in configuring Code::Blocks for OpenCV 2.3. So here is the way how I sorted out this problem.
Requirements:
- Code::Blocks with Mingw compiler.
Download the latest release of the
Code::Blocks from it's official website.
or
Click the link below to download Code::Block (version 10.05) with MingW compiler from
2. OpenCV (I am using OpenCV 2.3.0), if you don't have it you can get it by clicking the link below
or
you can select the latest version of the OpenCV on the
3. CMake file for creating the binaries for OpenCV, which can be downloaded
here
Steps to configure Code::Blocks for OpenCV 2.3.0:
1. Install the Code::Blocks with Mingw compiler. It will install the required
C compiler, C++ compiler and
mingw32-make in "C:\Program Files\CodeBlocks\Mingw\bin".
2. Add
"C:\Program Files\CodeBlocks\Mingw\bin"in the system path. Check this
LINK to see how to
edit system path.
3. Install Cmake 2.8. It may ask to add the Cmake to system path variable. If so, select "Do not add to system path variable".
4. Extract "OpenCV-2.3.0-win-src" to "C:\". This will create a new folder "C:\OpenCV-2.3.0".
5. Run Cmake (cmake-gui).
6. Set the Source Code to "C:\OpenCV-2.3.0".
7. Set where to built the binaries. For eg:
"C:\OpenCV".
8. Press Configure.
9. Let Cmake create the new folder.
10. Specify the Generator: MinGW Makefiles.
11. Select "Specify native compiler" and click Next.
12. For C set: "C:/Program Files/CodeBlocks/MinGW/bin/gcc.exe".
13. For C++ set: "C:/Program Files/CodeBlocks/MinGW/bin/g++.exe".
14. Click Finish. There should not be any errors and the screen should look like this
15. In the configuration screen type in "RELEASE" (or "DEBUG" if you want to build a debug version) for "CMAKE_BUILD_TYPE". Select BUILD_EXAMPLES if you want.
16. Click Configure again then click Generate cnd close Cmake.
17. Go to the command prompt and inside the folder "C:\OpenCV" type "mingw32-make" and hit enter (takes about 5 to 10 minutes).
18. Then type "mingw32-make install" and hit Enter.
19. After the installation is completed close the command prompt and copy the include folder from "C:\OpenCV\install" directory into "C:\OpenCV" folder and let it replace the previously existing include folder in the directory.
20. Open Code::Blocks and now click on the Settings menu on the menu bar and goto "Compiler and Debugger" settings.
21. Click on the "Linker" tab and "Add" all the files from the folder "C:\OpenCV\lib".
22. Click on the "Search Directory" tab and under "compiler" tab "Add" the path "C:\OpenCV\include" and "C:\OpenCV\include\opencv"
23. Now click on the
"linker" and
"Add" the path
"C:\OpenCV\lib" and hit
"OK".
24. Create a new Project. Check "How to create a new project in Code::Blocks".
25. Try to run the following code. This code will load an image of the name "Paris.jpg" onto the screen. You can change the name "Paris.jpg" with your own image name. (Don't forget to putthat image into your project folder).
////////////////////////////////////////////////////////////////////////
#include "stdlib.h"
#include "stdio.h"
#include "math.h"
#include "cv.h"
#include "highgui.h"
int main(int argc, char *argv[])
{
// declare a new IplImage pointer
IplImage* myimage;
// load an image
myimage = cvLoadImage("Paris.jpg",1); //change the file name with your own image
//create a new window & display the image
cvNamedWindow("Smile", CV_WINDOW_AUTOSIZE);
//cvMoveWindow("Smile", 100, 100);
cvShowImage("Smile", myimage);
//wait for key to close the window
cvWaitKey(0);
cvDestroyWindow( "Smile" );
cvReleaseImage( &myimage );
return 0;
}
////////////////////////////////////////////////////////////////////////////
4:43 PM
Ashish Gaur
