#include "stdafx.h"
#include "cv.h"
#include "highgui.h"
#include <stdio.h>
#include <ctype.h>
IplImage *image = 0, *hsv = 0, *hue = 0, *mask = 0, *backproject = 0, *histimg = 0;
CvHistogram *hist = 0;
int backproject_mode = 0;
int select_object = 0;
int track_object = 0;
int show_hist = 1;
CvPoint origin;
CvRect selection;
CvRect track_window;
CvBox2D track_box;
CvConnectedComp track_comp;
int hdims = 16;
float hranges_arr[] = {0,180};
float* hranges = hranges_arr;
int vmin = 20, vmax = 256, smin = 90;
CvScalar hsv2rgb( float hue );
void CaptureObject(CvCapture* capture);
void loadTemplateImage()
{
IplImage *tempimage = cvLoadImage("F://test//test.jpg",1);// target sample picture
cvCvtColor( tempimage, hsv, CV_BGR2HSV );
int _vmin = vmin, _vmax = vmax;
cvInRangeS( hsv, cvScalar(0,smin,MIN(_vmin,_vmax),0),cvScalar(180,256,MAX(_vmin,_vmax),0), mask );
cvSplit( hsv, hue, 0, 0, 0 );
selection.x = 1;
selection.y = 1;
selection.width = 320-1;
selection.height= 240-1;
cvSetImageROI( hue, selection );
cvSetImageROI( mask, selection );
cvCalcHist( &hue, hist, 0, mask );
float max_val = 0.f;
cvGetMinMaxHistValue( hist, 0, &max_val, 0, 0 );
cvConvertScale( hist->bins, hist->bins, max_val ? 255. / max_val : 0., 0 );
cvResetImageROI( hue );
cvResetImageROI( mask );
track_window = selection;
track_object = 1;
cvZero( histimg );
int bin_w = histimg->width / hdims;
for(int i = 0; i < hdims; i++ )
{
int val = cvRound( cvGetReal1D(hist->bins,i)*histimg->height/255 );
CvScalar color = hsv2rgb(i*180.f/hdims);
cvRectangle( histimg, cvPoint(i*bin_w,histimg->height),cvPoint((i+1)*bin_w,histimg->height - val),color, -1, 8, 0 );
}
cvReleaseImage(&tempimage);
}
void on_mouse( int event, int x, int y, int flags, void* param )
{
if( !image )
return;
if( image->origin )
y = image->height - y;
if( select_object )
{
char d[10];
itoa(select_object,d,10);
printf("select object %s ",d);
selection.x = MIN(x,origin.x);
selection.y = MIN(y,origin.y);
selection.width = selection.x + CV_IABS(x - origin.x);
selection.height = selection.y + CV_IABS(y - origin.y);
selection.x = MAX( selection.x, 0 );
selection.y = MAX( selection.y, 0 );
selection.width = MIN( selection.width, image->width );
selection.height = MIN( selection.height, image->height );
selection.width -= selection.x;
selection.height -= selection.y;
char a[10];
char b[10];
char c[10];
char e[10];
itoa(selection.x,a,10);
itoa(selection.y,b,10);
itoa(selection.width,c,10);
itoa(selection.height,e,10);
printf("selection x: %s,y:%s,width:%s,height:%s ",a,b,c,e);
}
switch( event )
{
case CV_EVENT_LBUTTONDOWN:
origin = cvPoint(x,y);
selection = cvRect(x,y,0,0);
select_object = 1;
break;
case CV_EVENT_LBUTTONUP:
select_object = 0;
if( selection.width > 0 && selection.height > 0 )
track_object = -1;
break;
}
}
CvScalar hsv2rgb( float hue )
{
int rgb[3], p, sector;
static const int sector_data[][3]=
{{0,2,1}, {1,2,0}, {1,0,2}, {2,0,1}, {2,1,0}, {0,1,2}};
hue *= 0.033333333333333333333333333333333f;
sector = cvFloor(hue);
p = cvRound(255*(hue - sector));
p ^= sector & 1 ? 255 : 0;
rgb[sector_data[sector][0]] = 255;
rgb[sector_data[sector][1]] = 0;
rgb[sector_data[sector][2]] = p;
return cvScalar(rgb[2], rgb[1], rgb[0],0);
}
int main( int argc, char** argv )
{
CvCapture* capture = 0;
capture = cvCaptureFromCAM(0);
cvNamedWindow( "TrackEngine", 0 );
CaptureObject(capture);
cvReleaseCapture( &capture );
cvDestroyWindow("TrackEngine");
return 0;
}
void CaptureObject(CvCapture* capture)
{
for(;;)
{
IplImage* frame = 0;
int c;
frame = cvQueryFrame( capture );
if( !frame )
break;
if( !image )
{
image = cvCreateImage( cvGetSize(frame), 8, 3 );
image->origin = frame->origin;
hsv = cvCreateImage( cvGetSize(frame), 8, 3 );
hue = cvCreateImage( cvGetSize(frame), 8, 1 );
mask = cvCreateImage( cvGetSize(frame), 8, 1 );
backproject = cvCreateImage( cvGetSize(frame), 8, 1 );
hist = cvCreateHist( 1, &hdims, CV_HIST_ARRAY, &hranges, 1 );
histimg = cvCreateImage( cvSize(320,200), 8, 3 );
cvZero( histimg );
loadTemplateImage();
}
cvCopy( frame, image, 0 );
cvCvtColor( image, hsv, CV_BGR2HSV );
if( track_object )
{
int _vmin = vmin, _vmax = vmax;
cvInRangeS( hsv, cvScalar(0,smin,MIN(_vmin,_vmax),0),cvScalar(180,256,MAX(_vmin,_vmax),0), mask );
cvSplit( hsv, hue, 0, 0, 0 );
cvCalcBackProject( &hue, backproject, hist );
cvAnd( backproject, mask, backproject, 0 );
cvCamShift( backproject, track_window,cvTermCriteria( CV_TERMCRIT_EPS | CV_TERMCRIT_ITER, 10, 1 ),&track_comp, &track_box );
track_window = track_comp.rect;
if( backproject_mode )
cvCvtColor( backproject, image, CV_GRAY2BGR );
if( image->origin )
track_box.angle = -track_box.angle;
cvEllipseBox(image, track_box, CV_RGB(255,0,0), 3, CV_AA, 0 );
}
if( select_object && selection.width> 0 && selection.height > 0 )
{
cvSetImageROI( image, selection );
cvXorS( image, cvScalarAll(255), image, 0 );
cvResetImageROI( image );
}
cvShowImage( "TrackEngine", image );
c = cvWaitKey(10);
}
}
#ifdef _EiC
main(1,"TrackEngine.c");
#endif
//此代码在vc++6.0 下编译通过
