img->height/scale)),
8, 1 );
int i;
//图像转换RGB模式转为灰度图
cvCvtColor( img, gray, CV_BGR2GRAY );
cvResize( gray, small_img, CV_INTER_LINEAR );
cvEqualizeHist( small_img, small_img );
cvClearMemStorage( storage );
if( cascade )
{
double t = (double)cvGetTickCount();
CvSeq* faces = cvHaarDetectObjects( small_img, cascade, storage,
1.1, 2, 0/*CV_HAAR_DO_CANNY_PRUNING*/,
cvSize(30, 30) );
t = (double)cvGetTickCount() - t;
printf( "detection time = %gms\n", t/((double)cvGetTickFrequency()*1000.) );
for( i = 0; i < (faces faces->total : 0); i++ )
{
CvRect* r = (CvRect*)cvGetSeqElem( faces, i );
CvPoint center;
int radius;
center.x = cvRound((r->x + r->width*0.5)*scale);
center.y = cvRound((r->y + r->height*0.5)*scale);
radius = cvRound((r->width + r->height)*0.25*scale);
//cvCircle( img, center, radius, colors[i%8], 3, 8, 0 );
cvRectangle(img,cvPoint(center.x-radius,center.y-radius),cvPoint(center.x+radius,center.y+radius),colors[i%8],3,8,0);
//cvRect(center.x-radius,center.y-radius,center.x+radius,center.y+radius);
}
}
}