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MFC APPLICATION
If you're working with an MFC application, follow these steps to get your Haar
Facial Detector working: Step 1
Install Intel OpenCV. I will assume it's installed in the default directory :
c:\program files\opencv Step 2
Create a standard MFC application using the AppWizard. Step 3
In Project Settings (Alt+F7), go to the C/C++ tab, then select Category
Preprocessor, and for Additional Include directories, add the following:
C:\Program Files\opencv\cv\include,C:\Program
Files\opencv\otherlibs\highgui,C:\Program Files\opencv\cxcore\include,C:\Program
Files\opencv\cvaux\include Step 4
In Project Settings (Alt+F7), go to the Link tab, then select Category "Input",
and for "Object/library modules:", add the following:
cxcored.lib cvd.lib highguid.lib (see that there are no commas like in Step 3
above) Step 5
While staying in the Link tab, and Category "Input", for the "Additional Library
path:", add the following:
C:\Program Files\opencv\lib Step 6
In your main application file, eg Simple.cpp, include the following files:
#include "cv.h"
#include "highgui.h" Step 7
In the same file, go to the InitInstance() function. Right after you see the
lines: m_pMainWnd->ShowWindow(SW_SHOW);
m_pMainWnd->UpdateWindow(); and before the line return TRUE; add the following lines of code //declarations
CvHaarClassifierCascade* cascade;
CvMemStorage* storage;
IplImage *image;
CvSeq* faces;
const char* file_name;
int i; //initializations
storage=cvCreateMemStorage(0);
cvFirstType();
file_name="haarcascade_frontalface_alt.xml";
cascade = (CvHaarClassifierCascade*)cvLoad(file_name,NULL, NULL, NULL);
image = cvLoadImage("lena.jpg", 1 );
faces = cvHaarDetectObjects( image, cascade, storage, 1.2, 2,
CV_HAAR_DO_CANNY_PRUNING,cvSize(0, 0)); //draw rectangles
for(i=0;i<(faces ? faces->total:0); i++ )
{
CvRect* r = (CvRect*)cvGetSeqElem( faces, i );
CvPoint pt1 = { r->x, r->y };
CvPoint pt2 = { r->x + r->width, r->y + r->height };
cvRectangle( image, pt1, pt2, CV_RGB(255,0,0), 3, 8, 0 );
} // create window and show the image with outlined faces
cvNamedWindow( "faces", 1 );
cvShowImage( "faces", image );
cvSaveImage("Result.jpg", image);
cvWaitKey();
cvReleaseImage( &image ); // after a key pressed, release data
cvReleaseHaarClassifierCascade( &cascade );
cvReleaseMemStorage( &storage ); Step 8
Now go to c:\program files\opencv\bin, and copy the following files to the
folder where your MFC files reside: cv097d.dll
cxcore097d.dll
highgui097d.dll Step 9
Now go to c:\program files\opencv\samples\c and copy lena.jpg to the folder
where your MFC files reside. Step 10
Run your application.
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