#include "cv.h"
#include
"highgui.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <math.h>
#include <float.h>
#include <limits.h>
#include <time.h>
#include <ctype.h>
static CvMemStorage*
storage = 0;
static
CvHaarClassifierCascade* cascade = 0;
void detect_and_draw(
IplImage* image );
const char* cascade_name
="haarcascade_frontalface_alt";
int main( int argc, char**
argv )
{
CvCapture* capture = 0;
IplImage *frame= 0;
IplImage *frame_copy= 0;
//1. Load file database haarcascade
cascade_name = "haarcascade_frontalface_alt.xml";
cascade =
(CvHaarClassifierCascade*)cvLoad( cascade_name, 0, 0, 0 );
//2. Jika tidak bisa nge-load, maka
program dibatalkan
if( !cascade )
{
fprintf( stderr, "ERROR: Could
not load classifier cascade\n" );
fprintf( stderr, "Usage:
facedetect --cascade=\"<cascade_path>\"
[filename|camera_index]\n" );
return -1;
}
//membuat memory penyimpanan
storage = cvCreateMemStorage(0);
//mengambil gambar dari kamera video0
capture = cvCaptureFromCAM(0);
//membuat nama window
cvNamedWindow( "result", 1 );
//jika tidak bisa mengambil gambar dari
kamera, program dibatalkan
if ( !capture ) {
fprintf( stderr, "ERROR: capture is
NULL \n" );
getchar();
return -1;
}
//jika bisa mengambil gambar
if( capture )
{
while(1)
{
/* cvGrabFrame (ambil frame dg
kasar)
grab a frame, return 1 on
success, 0 on fail.
this function is thought to be fast*/
/* get the frame grabbed with
cvGrabFrame(..)
This function may apply some
frame processing like
frame decompression, flipping
etc.
/* Just a combination of cvGrabFrame
and cvRetrieveFrame*/
//jika frame tidak dipegang,
break
if( !cvGrabFrame( capture ))
break;
//jika dipegang ambil frame tadi
dengan cvRetrieveFrame
frame = cvRetrieveFrame( capture
);
if( !frame )
break;
if( !frame_copy )
frame_copy = cvCreateImage(
cvSize(frame->width,frame->height),IPL_DEPTH_8U, frame->nChannels );
if( frame->origin ==
IPL_ORIGIN_TL )
cvCopy( frame, frame_copy, 0 );
else
cvFlip( frame, frame_copy, 0
);
IplImage* frame = cvQueryFrame(
capture );
detect_and_draw( frame_copy);
if( cvWaitKey( 10 ) >= 0 )
break;
}
cvReleaseImage( &frame_copy);
cvReleaseCapture( &capture );
}
cvDestroyWindow("result");
return 0;
}
void detect_and_draw(
IplImage* img )
{
static CvScalar colors[] =
{
{{0,0,255}}, //biru
{{0,128,255}}, //biru muda
{{0,255,255}}, //sian
{{0,255,0}}, //hijau
{{255,128,0}}, //orange
{{255,255,0}}, //kuning
{{255,0,0}}, //merah
{{255,0,255}} //magenta
};
double scale = 1.3;
IplImage* gray = cvCreateImage(
cvSize(img->width,img->height), 8, 1 );
IplImage* small_img = cvCreateImage(
cvSize( cvRound (img->width/scale),cvRound (img->height/scale)),8, 1 );
int i;
cvCvtColor( img, gray, CV_BGR2GRAY );
cvResize( gray, small_img,
CV_INTER_LINEAR );
cvEqualizeHist( small_img, small_img );
cvClearMemStorage( storage );
if( cascade )
{
//menghitung waktu pengambilan &
untuk mempercepat
double t = (double)cvGetTickCount();
//CvSeq* faces = cvHaarDetectObjects(
small_img, cascade, storage,1.1, 3, 0/*CV_HAAR_DO_CANNY_PRUNING dan
*/,cvSize(30, 30) ); // default ada
error
//nilai 1.1 adalah nilai minimal
//CvSeq* faces = cvHaarDetectObjects(
small_img, cascade, storage, 1.3, 2, 0|1/*CV_HAAR_DO_CANNY_PRUNING dan
*/,cvSize(33, 33) ); //masih sedikit error
CvSeq* faces = cvHaarDetectObjects(
small_img, cascade, storage, 1.1, 3, 0|1/*CV_HAAR_DO_CANNY_PRUNING dan
*/,cvSize(50, 50) ); //Oke
//CvSeq* faces = cvHaarDetectObjects(
small_img, cascade, storage, 1.1, 3, 0|1/*CV_HAAR_DO_CANNY_PRUNING dan
*/,cvSize(33, 33) ); //Oke Akhir
//CvSeq* faces = cvHaarDetectObjects(
small_img, cascade, storage, 2, 3, 0|1/*CV_HAAR_DO_CANNY_PRUNING dan
*/,cvSize(50, 50) ); //tidak
terdeteksi
t = (double)cvGetTickCount() - t;
//printf( "detection time =
%gms\n", t/((double)cvGetTickFrequency()*1000.) );
unsigned char a=0;
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,
cvScalar( 0,128,255), 3, 8, 0 );
a=1;
}
if (a==1)
{
//Menampilkan text pada layar
CvFont font;
cvInitFont( &font,
CV_FONT_HERSHEY_SIMPLEX, 1.0, 1.0, 0, 1, 8);
cvPutText(img,"Ada
orang",cvPoint(100,50),&font,CV_RGB(0,255,0));
printf( "detected\n");
}
else
{
//Menampilkan text pada layar
CvFont font;
cvInitFont( &font,
CV_FONT_HERSHEY_SIMPLEX, 1.0, 1.0, 0, 1, 8);
cvPutText(img,"?",cvPoint(100,50),&font,CV_RGB(0,255,0));
printf( "not detected\n");
}
}
cvShowImage( "result", img );
cvReleaseImage( &gray );
cvReleaseImage( &small_img );
}
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