OPenCV人脸时时检测分析

来源：互联网发布：ubuntu改成中文编辑：程序博客网时间：2024/05/01 05:07

这是一个有关cvLoad应用的列子，通过修改cvLoad的参数不仅可以用于时时检测人脸，眼睛等，像OpenCV3.1版本中HaarFaceDetect列子，下一步要探究一下如何更准确的分析人脸，

#include <stdio.h>

#include "cv.h"
#include "cxcore.h"
#include "highgui.h"

int main( int argc, char** argv )
{
//声明IplImage指针
// IplImage* pFrame = NULL;
IplImage* m_IplImage = NULL;

CvSeq* faces=NULL;
CvHaarClassifierCascade* cascade=NULL;
CvMemStorage* storage =NULL;

CvPoint pt1;
CvPoint pt2;
CvRect* r=NULL;
CvCapture* pCapture = NULL;

int nFrmNum = 0;
int i;

cvNamedWindow("faces",1);
cvMoveWindow("faces", 120, 0);

if( argc > 2 )
    {
      fprintf(stderr, "Usage: bkgrd [video_file_name]/n");
      return -1;
    }

if (argc ==1)
    if( !(pCapture = cvCaptureFromCAM(-1)))
      {
fprintf(stderr, "Can not open camera./n");
return -2;
      }
if(argc == 2)
    if( !(pCapture = cvCaptureFromFile(argv[1])))
      {
fprintf(stderr, "Can not open video file %s/n", argv[1]);
return -2;
      }

while(m_IplImage = cvQueryFrame( pCapture ))
    {
      nFrmNum++;
      if(nFrmNum == 1)
   {

   storage = cvCreateMemStorage(0);
      cascade = (CvHaarClassifierCascade*)cvLoad("E://Program Files//OpenCV//data//haarcascades//LEye.xml",storage,NULL,NULL);
   }
      else
   {
     faces = cvHaarDetectObjects(m_IplImage,cascade,storage,1.2,2,CV_HAAR_DO_CANNY_PRUNING,cvSize(0,0));
     for(i=0;i<(faces?faces->total:0);i++)
  {
    r = (CvRect*)cvGetSeqElem(faces,i);
    pt1.x=r->x;
    pt1.y=r->y;
    pt2.x=r->x + r->width;
    pt2.y=r->y + r->height;
    cvRectangle(m_IplImage,pt1,pt2,CV_RGB(255,0,0),3,8,0);
  }

     cvShowImage("faces",m_IplImage);

     if( cvWaitKey(2) >= 0 )
       break;
   }
    }

cvDestroyWindow("faces");

cvReleaseImage(&m_IplImage);

cvReleaseHaarClassifierCascade(&cascade);
cvReleaseMemStorage(&storage);

return 0;
}