void cvFindBlobsByCCClasters(IplImage* pFG, CvBlobSeq* pBlobs, CvMemStorage* storage)
{ /* Create contours: */
IplImage* pIB = NULL;
CvSeq* cnt = NULL;
CvSeq* cnt_list = cvCreateSeq(0,sizeof(CvSeq),sizeof(CvSeq*), storage );
CvSeq* clasters = NULL;
int claster_cur, claster_num;
pIB = cvCloneImage(pFG);
cvThreshold(pIB,pIB,128,255,CV_THRESH_BINARY);
cvFindContours(pIB,storage, &cnt, sizeof(CvContour), CV_RETR_EXTERNAL);
cvReleaseImage(&pIB);
/* Create cnt_list. */
/* Process each contour: */
for(; cnt; cnt=cnt->h_next)
{
cvSeqPush( cnt_list, &cnt);
}
claster_num = cvSeqPartition( cnt_list, storage, &clasters, CompareContour, NULL );
for(claster_cur=0; claster_cur<claster_num; ++claster_cur)
{
int cnt_cur;
CvBlob NewBlob;
double M00,X,Y,XX,YY; /* image moments */
CvMoments m;
CvRect rect_res = cvRect(-1,-1,-1,-1);
CvMat mat;
for(cnt_cur=0; cnt_cur<clasters->total; ++cnt_cur)
{
CvRect rect;
CvSeq* cnt;
int k = *(int*)cvGetSeqElem( clasters, cnt_cur );
if(k!=claster_cur) continue;
cnt = *(CvSeq**)cvGetSeqElem( cnt_list, cnt_cur );
rect = ((CvContour*)cnt)->rect;
if(rect_res.height<0)
{
rect_res = rect;
}
else
{ /* Unite rects: */
int x0,x1,y0,y1;
x0 = MIN(rect_res.x,rect.x);
y0 = MIN(rect_res.y,rect.y);
x1 = MAX(rect_res.x+rect_res.width,rect.x+rect.width);
y1 = MAX(rect_res.y+rect_res.height,rect.y+rect.height);
rect_res.x = x0;
rect_res.y = y0;
rect_res.width = x1-x0;
rect_res.height = y1-y0;
}
}
if(rect_res.height < 1 || rect_res.width < 1)
{
X = 0;
Y = 0;
XX = 0;
YY = 0;
}
else
{
cvMoments( cvGetSubRect(pFG,&mat,rect_res), &m, 0 );
M00 = cvGetSpatialMoment( &m, 0, 0 );
if(M00 <= 0 ) continue;
X = cvGetSpatialMoment( &m, 1, 0 )/M00;
Y = cvGetSpatialMoment( &m, 0, 1 )/M00;
XX = (cvGetSpatialMoment( &m, 2, 0 )/M00) - X*X;
YY = (cvGetSpatialMoment( &m, 0, 2 )/M00) - Y*Y;
}
NewBlob = cvBlob(rect_res.x+(float)X,rect_res.y+(float)Y,(float)(4*sqrt(XX)),(float)(4*sqrt(YY)));
pBlobs->AddBlob(&NewBlob);
} /* Next cluster. */
#if 0
{ // Debug info:
IplImage* pI = cvCreateImage(cvSize(pFG->width,pFG->height),IPL_DEPTH_8U,3);
cvZero(pI);
for(claster_cur=0; claster_cur<claster_num; ++claster_cur)
{
int cnt_cur;
CvScalar color = CV_RGB(rand()%256,rand()%256,rand()%256);
for(cnt_cur=0; cnt_cur<clasters->total; ++cnt_cur)
{
CvSeq* cnt;
int k = *(int*)cvGetSeqElem( clasters, cnt_cur );
if(k!=claster_cur) continue;
cnt = *(CvSeq**)cvGetSeqElem( cnt_list, cnt_cur );
cvDrawContours( pI, cnt, color, color, 0, 1, 8);
}
CvBlob* pB = pBlobs->GetBlob(claster_cur);
int x = cvRound(CV_BLOB_RX(pB)), y = cvRound(CV_BLOB_RY(pB));
cvEllipse( pI,
cvPointFrom32f(CV_BLOB_CENTER(pB)),
cvSize(MAX(1,x), MAX(1,y)),
0, 0, 360,
color, 1 );
}
cvNamedWindow( "Clusters", 0);
cvShowImage( "Clusters",pI );
cvReleaseImage(&pI);
} /* Debug info. */
#endif
} /* cvFindBlobsByCCClasters */
virtual void Process(IplImage* pImg, IplImage* pImgFG = NULL)
{
CvSeq* cnts;
CvSeq* cnt;
int i;
//CvMat* pMC = NULL;
if(m_BlobList.GetBlobNum() <= 0 ) return;
/* Clear blob list for new blobs: */
m_BlobListNew.Clear();
assert(m_pMem);
cvClearMemStorage(m_pMem);
assert(pImgFG);
{ /* One contour - one blob: */
IplImage* pBin = cvCloneImage(pImgFG);
assert(pBin);
cvThreshold(pBin,pBin,128,255,CV_THRESH_BINARY);
cvFindContours(pBin, m_pMem, &cnts, sizeof(CvContour), CV_RETR_EXTERNAL);
/* Process each contour: */
for(cnt = cnts; cnt; cnt=cnt->h_next)
{
CvBlob NewBlob;
/* Image moments: */
double M00,X,Y,XX,YY;
CvMoments m;
CvRect r = ((CvContour*)cnt)->rect;
CvMat mat;
if(r.height < 3 || r.width < 3) continue;
cvMoments( cvGetSubRect(pImgFG,&mat,r), &m, 0 );
M00 = cvGetSpatialMoment( &m, 0, 0 );
if(M00 <= 0 ) continue;
X = cvGetSpatialMoment( &m, 1, 0 )/M00;
Y = cvGetSpatialMoment( &m, 0, 1 )/M00;
XX = (cvGetSpatialMoment( &m, 2, 0 )/M00) - X*X;
YY = (cvGetSpatialMoment( &m, 0, 2 )/M00) - Y*Y;
NewBlob = cvBlob(r.x+(float)X,r.y+(float)Y,(float)(4*sqrt(XX)),(float)(4*sqrt(YY)));
m_BlobListNew.AddBlob(&NewBlob);
} /* Next contour. */
cvReleaseImage(&pBin);
}
for(i=m_BlobList.GetBlobNum(); i>0; --i)
{ /* Predict new blob position. */
CvBlob* pB = NULL;
DefBlobTrackerCR* pBT = (DefBlobTrackerCR*)m_BlobList.GetBlob(i-1);
/* Update predictor. */
pBT->pPredictor->Update(&(pBT->blob));
pB = pBT->pPredictor->Predict();
if(pB)
{
pBT->BlobPredict = pB[0];
}
pBT->BlobPrev = pBT->blob;
} /* Predict new blob position. */
if(m_BlobList.GetBlobNum()>0 && m_BlobListNew.GetBlobNum()>0)
{ /* Resolve new blob to old: */
int i,j;
int NOld = m_BlobList.GetBlobNum();
int NNew = m_BlobListNew.GetBlobNum();
for(i=0; i<NOld; i++)
{ /* Set 0 collision and clear all hyp: */
DefBlobTrackerCR* pF = (DefBlobTrackerCR*)m_BlobList.GetBlob(i);
pF->Collision = 0;
pF->pBlobHyp->Clear();
} /* Set 0 collision. */
/* Create correspondence records: */
for(j=0; j<NNew; ++j)
{
CvBlob* pB1 = m_BlobListNew.GetBlob(j);
DefBlobTrackerCR* pFLast = NULL;
for(i=0; i<NOld; i++)
{ /* Check intersection: */
int Intersection = 0;
DefBlobTrackerCR* pF = (DefBlobTrackerCR*)m_BlobList.GetBlob(i);
CvBlob* pB2 = &(pF->BlobPredict);
if( fabs(pB1->x-pB2->x)<0.5*(pB1->w+pB2->w) &&
fabs(pB1->y-pB2->y)<0.5*(pB1->h+pB2->h) ) Intersection = 1;
if(Intersection)
{
if(pFLast)
{
pF->Collision = pFLast->Collision = 1;
}
pFLast = pF;
pF->pBlobHyp->AddBlob(pB1);
}
} /* Check intersection. */
} /* Check next new blob. */
} /* Resolve new blob to old. */
for(i=m_BlobList.GetBlobNum(); i>0; --i)
{ /* Track each blob. */
CvBlob* pB = m_BlobList.GetBlob(i-1);
DefBlobTrackerCR* pBT = (DefBlobTrackerCR*)pB;
int BlobID = CV_BLOB_ID(pB);
//CvBlob* pBBest = NULL;
//double DistBest = -1;
int j;
if(pBT->pResolver)
{
pBT->pResolver->SetCollision(pBT->Collision);
}
if(pBT->Collision)
{ /* Tracking in collision: */
if(pBT->pResolver)
{
pB[0] = pBT->pResolver->Process(&(pBT->BlobPredict),pImg, pImgFG)[0];
}
} /* Tracking in collision. */
else
{ /* Non-collision tracking: */
CvBlob NewCC = pBT->BlobPredict;
if(pBT->pBlobHyp->GetBlobNum()==1)
{ /* One blob to one CC: */
NewCC = pBT->pBlobHyp->GetBlob(0)[0];
}
else
{ /* One blob several CC: */
CvBlob* pBBest = NULL;
double DistBest = -1;
double CMax = 0;
for(j=pBT->pBlobHyp->GetBlobNum();j>0;--j)
{ /* Find best CC: */
CvBlob* pBNew = pBT->pBlobHyp->GetBlob(j-1);
if(pBT->pResolver)
{ /* Choose CC by confidence: */
// double dx = fabs(CV_BLOB_X(pB)-CV_BLOB_X(pBNew));
// double dy = fabs(CV_BLOB_Y(pB)-CV_BLOB_Y(pBNew));
double C = pBT->pResolver->GetConfidence(pBNew,pImg, pImgFG);
if(C > CMax || pBBest == NULL)
{
CMax = C;
pBBest = pBNew;
}
}
else
{ /* Choose CC by distance: */
double dx = fabs(CV_BLOB_X(pB)-CV_BLOB_X(pBNew));
double dy = fabs(CV_BLOB_Y(pB)-CV_BLOB_Y(pBNew));
double Dist = sqrt(dx*dx+dy*dy);
if(Dist < DistBest || pBBest == NULL)
{
DistBest = Dist;
pBBest = pBNew;
}
}
} /* Find best CC. */
if(pBBest)
NewCC = pBBest[0];
} /* One blob several CC. */
pB->x = NewCC.x;
pB->y = NewCC.y;
pB->w = (m_AlphaSize)*NewCC.w+(1-m_AlphaSize)*pB->w;
pB->h = (m_AlphaSize)*NewCC.h+(1-m_AlphaSize)*pB->h;
pBT->pResolver->SkipProcess(&(pBT->BlobPredict),pImg, pImgFG);
} /* Non-collision tracking. */
pBT->pResolver->Update(pB, pImg, pImgFG);
CV_BLOB_ID(pB)=BlobID;
} /* Track next blob. */
if(m_Wnd)
{
IplImage* pI = cvCloneImage(pImg);
int i;
for(i=m_BlobListNew.GetBlobNum(); i>0; --i)
{ /* Draw each new CC: */
CvBlob* pB = m_BlobListNew.GetBlob(i-1);
CvPoint p = cvPointFrom32f(CV_BLOB_CENTER(pB));
int x = cvRound(CV_BLOB_RX(pB)), y = cvRound(CV_BLOB_RY(pB));
CvSize s = cvSize(MAX(1,x), MAX(1,y));
//int c = 255;
cvEllipse( pI,
p,
s,
0, 0, 360,
CV_RGB(255,255,0), 1 );
}
for(i=m_BlobList.GetBlobNum(); i>0; --i)
{ /* Draw each new CC: */
DefBlobTrackerCR* pF = (DefBlobTrackerCR*)m_BlobList.GetBlob(i-1);
CvBlob* pB = &(pF->BlobPredict);
CvPoint p = cvPointFrom32f(CV_BLOB_CENTER(pB));
int x = cvRound(CV_BLOB_RX(pB)), y = cvRound(CV_BLOB_RY(pB));
CvSize s = cvSize(MAX(1,x), MAX(1,y));
cvEllipse( pI,
p,
s,
0, 0, 360,
CV_RGB(0,0,255), 1 );
pB = &(pF->blob);
p = cvPointFrom32f(CV_BLOB_CENTER(pB));
x = cvRound(CV_BLOB_RX(pB)); y = cvRound(CV_BLOB_RY(pB));
s = cvSize(MAX(1,x), MAX(1,y));
cvEllipse( pI,
p,
s,
0, 0, 360,
CV_RGB(0,255,0), 1 );
}
//cvNamedWindow("CCwithCR",0);
//cvShowImage("CCwithCR",pI);
cvReleaseImage(&pI);
}
} /* Process. */
virtual void Process(IplImage* pImg, IplImage* /*pFG*/) {
int i;
double MinTv = pImg->width / 1440.0; /* minimal threshold for speed difference */
double MinTv2 = MinTv * MinTv;
for (i = m_Tracks.GetBlobNum(); i > 0; --i) {
DefTrackForDist* pF = (DefTrackForDist*)m_Tracks.GetBlob(i - 1);
pF->state = 0;
if (pF->LastFrame == m_Frame || pF->LastFrame + 1 == m_Frame) {
/* Process one blob trajectory: */
int NumEq = 0;
int it;
for (it = m_TrackDataBase.GetBlobNum(); it > 0; --it) {
/* Check template: */
DefTrackForDist* pFT = (DefTrackForDist*)m_TrackDataBase.GetBlob(it - 1);
int Num = pF->pTrack->GetPointNum();
int NumT = pFT->pTrack->GetPointNum();
int* pPairIdx = (int*)ReallocTempData(sizeof(int) * 2 * (Num + NumT) + sizeof(DefMatch) * Num * NumT);
void* pTmpData = pPairIdx + 2 * (Num + NumT);
int PairNum = 0;
int k;
int Equal = 1;
int UseVel = 0;
int UsePos = 0;
if (i == it) { continue; }
/* Match track: */
PairNum = cvTrackMatch(pF->pTrack, m_TraceLen, pFT->pTrack, pPairIdx, pTmpData);
Equal = MAX(1, cvRound(PairNum * 0.1));
UseVel = 3 * pF->pTrack->GetPointNum() > m_TraceLen;
UsePos = 10 * pF->pTrack->GetPointNum() > m_TraceLen;
{
/* Check continues: */
float D;
int DI = pPairIdx[0*2+0] - pPairIdx[(PairNum-1)*2+0];
int DIt = pPairIdx[0*2+1] - pPairIdx[(PairNum-1)*2+1];
if (UseVel && DI != 0) {
D = (float)(DI - DIt) / (float)DI;
if (fabs(D) > m_VelThreshold) { Equal = 0; }
if (fabs(D) > m_VelThreshold * 0.5) { Equal /= 2; }
}
} /* Check continues. */
for (k = 0; Equal > 0 && k < PairNum; ++k) {
/* Compare with threshold: */
int j = pPairIdx[k*2+0];
int jt = pPairIdx[k*2+1];
DefTrackPoint* pB = pF->pTrack->GetPoint(j);
DefTrackPoint* pBT = pFT->pTrack->GetPoint(jt);
double dx = pB->x - pBT->x;
double dy = pB->y - pBT->y;
double dvx = pB->vx - pBT->vx;
double dvy = pB->vy - pBT->vy;
//double dv = pB->v - pBT->v;
double D = dx * dx + dy * dy;
double Td = pBT->r * m_PosThreshold;
double dv2 = dvx * dvx + dvy * dvy;
double Tv2 = (pBT->vx * pBT->vx + pBT->vy * pBT->vy) * m_VelThreshold * m_VelThreshold;
double Tvm = pBT->v * m_VelThreshold;
if (Tv2 < MinTv2) { Tv2 = MinTv2; }
if (Tvm < MinTv) { Tvm = MinTv; }
/* Check trajectory position: */
if (UsePos && D > Td * Td) {
Equal--;
} else
/* Check trajectory velocity. */
/* Don't consider trajectory tail because its unstable for velocity computation. */
if (UseVel && j > 5 && jt > 5 && dv2 > Tv2) {
Equal--;
}
} /* Compare with threshold. */
if (Equal > 0) {
NumEq++;
pFT->close++;
}
} /* Next template. */
{
/* Calculate state: */
float T = m_TrackDataBase.GetBlobNum() * m_AbnormalThreshold; /* calc threshold */
if (T > 0) {
pF->state = (T - NumEq) / (T * 0.2f) + 0.5f;
}
if (pF->state < 0) { pF->state = 0; }
if (pF->state > 1) { pF->state = 1; }
/*if(0)if(pF->state>0)
{// if abnormal blob
printf("Abnormal blob(%d) %d < %f, state=%f\n",CV_BLOB_ID(pF),NumEq,T, pF->state);
}*/
} /* Calculate state. */
} /* Process one blob trajectory. */
else {
/* Move track to tracks data base: */
m_TrackDataBase.AddBlob((CvBlob*)pF);
m_Tracks.DelBlob(i - 1);
}
} /* Next blob. */
if (m_Wnd) {
/* Debug output: */
int i;
if (m_pDebugImg == NULL) {
m_pDebugImg = cvCloneImage(pImg);
} else {
cvCopy(pImg, m_pDebugImg);
}
for (i = m_TrackDataBase.GetBlobNum(); i > 0; --i) {
/* Draw all elements in track data base: */
int j;
DefTrackForDist* pF = (DefTrackForDist*)m_TrackDataBase.GetBlob(i - 1);
CvScalar color = CV_RGB(0, 0, 0);
if (!pF->close) { continue; }
if (pF->close) {
color = CV_RGB(0, 0, 255);
} else {
color = CV_RGB(0, 0, 128);
}
for (j = pF->pTrack->GetPointNum(); j > 0; j--) {
DefTrackPoint* pB = pF->pTrack->GetPoint(j - 1);
int r = 0;//MAX(cvRound(pB->r),1);
cvCircle(m_pDebugImg, cvPoint(cvRound(pB->x), cvRound(pB->y)), r, color);
}
pF->close = 0;
} /* Draw all elements in track data base. */
for (i = m_Tracks.GetBlobNum(); i > 0; --i) {
/* Draw all elements for all trajectories: */
DefTrackForDist* pF = (DefTrackForDist*)m_Tracks.GetBlob(i - 1);
int j;
int c = cvRound(pF->state * 255);
CvScalar color = CV_RGB(c, 255 - c, 0);
CvPoint p = cvPointFrom32f(CV_BLOB_CENTER(pF));
int x = cvRound(CV_BLOB_RX(pF)), y = cvRound(CV_BLOB_RY(pF));
CvSize s = cvSize(MAX(1, x), MAX(1, y));
cvEllipse(m_pDebugImg,
p,
s,
0, 0, 360,
CV_RGB(c, 255 - c, 0), cvRound(1 + (0 * c) / 255));
for (j = pF->pTrack->GetPointNum(); j > 0; j--) {
DefTrackPoint* pB = pF->pTrack->GetPoint(j - 1);
if (pF->pTrack->GetPointNum() - j > m_TraceLen) { break; }
cvCircle(m_pDebugImg, cvPoint(cvRound(pB->x), cvRound(pB->y)), 0, color);
}
pF->close = 0;
} /* Draw all elements for all trajectories. */
//cvNamedWindow("Tracks",0);
//cvShowImage("Tracks", m_pDebugImg);
} /* Debug output. */
#if 0
if (m_pDebugImg && m_pDebugAVIName) {
if (m_pDebugAVI == NULL) {
/* Create avi file for writing: */
m_pDebugAVI = cvCreateVideoWriter(
m_pDebugAVIName,
CV_FOURCC('x', 'v', 'i', 'd'),
25,
cvSize(m_pDebugImg->width, m_pDebugImg->height));
if (m_pDebugAVI == NULL) {
printf("WARNING!!! Can not create AVI file %s for writing\n", m_pDebugAVIName);
}
} /* Create avi file for writing. */
if (m_pDebugAVI) { cvWriteFrame(m_pDebugAVI, m_pDebugImg); }
} /* Write debug window to AVI file. */
#endif
m_Frame++;
};
//将所有模块连接使用的函数
//根据这个来修改自己的
int RunBlobTrackingAuto2323(CvCapture* pCap, CvBlobTrackerAuto* pTracker, char* fgavi_name , char* btavi_name )
{
int OneFrameProcess = 0;
int key;
int FrameNum = 0;
CvVideoWriter* pFGAvi = NULL;
CvVideoWriter* pBTAvi = NULL;
/* Main loop: */
/*OneFrameProcess =0 时，为waitkey（0） 不等待了，返回-1，waitkey（1）表示等1ms，如果按键了返回按键，超时返回-1*/
for (FrameNum = 0; pCap && (key = cvWaitKey(OneFrameProcess ? 0 : 1)) != 27;//按下esc键整个程序结束。
FrameNum++)
{ /* Main loop: */// 整个程序的主循环。这个循环终止，意味着这个程序结束。
IplImage* pImg = NULL;
IplImage* pMask = NULL;
if (key != -1)
{
OneFrameProcess = 1;
if (key == 'r')OneFrameProcess = 0;
}
pImg = cvQueryFrame(pCap);//读取视频
if (pImg == NULL) break;
/* Process: */
pTracker->Process(pImg, pMask);//处理图像。这个函数应该执行完了所有的处理过程。
if (fgavi_name)//参数设置了fg前景要保存的文件名
if (pTracker->GetFGMask())//前景的图像的mask存在的话，保存前景。画出团块
{ /* Debug FG: */
IplImage* pFG = pTracker->GetFGMask();//得到前景的mask
CvSize S = cvSize(pFG->width, pFG->height);
static IplImage* pI = NULL;
if (pI == NULL)pI = cvCreateImage(S, pFG->depth, 3);
cvCvtColor(pFG, pI, CV_GRAY2BGR);
if (fgavi_name)//保存前景到视频
{ /* Save fg to avi file: */
if (pFGAvi == NULL)
{
pFGAvi = cvCreateVideoWriter(
fgavi_name,
CV_FOURCC('x', 'v', 'i', 'd'),
25,
S);
}
cvWriteFrame(pFGAvi, pI);//写入一张图
}
//画出团块的椭圆
if (pTracker->GetBlobNum() > 0) //pTracker找到了blob
{ /* Draw detected blobs: */
int i;
for (i = pTracker->GetBlobNum(); i > 0; i--)
{
CvBlob* pB = pTracker->GetBlob(i - 1);//得到第i-1个blob
CvPoint p = cvPointFrom32f(CV_BLOB_CENTER(pB));//团块中心
//这个宏竟然是个强制转换得来的。见下行。
//#define CV_BLOB_CENTER(pB) cvPoint2D32f(((CvBlob*)(pB))->x,((CvBlob*)(pB))->y)
CvSize s = cvSize(MAX(1, cvRound(CV_BLOB_RX(pB))), MAX(1, cvRound(CV_BLOB_RY(pB))));
//通过宏 获得团块的w 和h 的size
int c = cvRound(255 * pTracker->GetState(CV_BLOB_ID(pB)));
cvEllipse(pI,//在图中，对团块画圆
p,
s,
0, 0, 360,
CV_RGB(c, 255 - c, 0), cvRound(1 + (3 * c) / 255));
} /* Next blob: */;
}
cvNamedWindow("FG", 0);
cvShowImage("FG", pI);
} /* Debug FG. *///如果要保存结果，对前景保存，画出团块
//在原图上：找到的blob附近写下id
/* Draw debug info: */
if (pImg)//原始的每帧图像。
{ /* Draw all information about test sequence: */
char str[1024];
int line_type = CV_AA; // Change it to 8 to see non-antialiased graphics.
CvFont font;
int i;
IplImage* pI = cvCloneImage(pImg);
cvInitFont(&font, CV_FONT_HERSHEY_PLAIN, 0.7, 0.7, 0, 1, line_type);
for (i = pTracker->GetBlobNum(); i > 0; i--)
{
CvSize TextSize;
CvBlob* pB = pTracker->GetBlob(i - 1);
CvPoint p = cvPoint(cvRound(pB->x * 256), cvRound(pB->y * 256));
CvSize s = cvSize(MAX(1, cvRound(CV_BLOB_RX(pB) * 256)), MAX(1, cvRound(CV_BLOB_RY(pB) * 256)));
int c = cvRound(255 * pTracker->GetState(CV_BLOB_ID(pB)));
//画团块到原始图像上
cvEllipse(pI,
p,
s,
0, 0, 360,
CV_RGB(c, 255 - c, 0), cvRound(1 + (3 * 0) / 255), CV_AA, 8);
//下面代码的大概意思就是在找到的blob附近写下id
p.x >>= 8;
p.y >>= 8;
s.width >>= 8;
s.height >>= 8;
sprintf(str, "%03d", CV_BLOB_ID(pB));
cvGetTextSize(str, &font, &TextSize, NULL);
p.y -= s.height;
cvPutText(pI, str, p, &font, CV_RGB(0, 255, 255));
{
const char* pS = pTracker->GetStateDesc(CV_BLOB_ID(pB));
if (pS)
{
char* pStr = MY_STRDUP(pS);
char* pStrFree = pStr;
while (pStr && strlen(pStr) > 0)
{
char* str_next = strchr(pStr, '\n');
if (str_next)
{
str_next[0] = 0;
str_next++;
}
p.y += TextSize.height + 1;
cvPutText(pI, pStr, p, &font, CV_RGB(0, 255, 255));
pStr = str_next;
}
free(pStrFree);
}
}
} /* Next blob. */;
cvNamedWindow("Tracking", 0);
cvShowImage("Tracking", pI);
if (btavi_name && pI)//如果这一帧存在且，你想把图像存起来，就是传过来的参数不为空例如 btavi_name=“1.avi" 就能存起来了。
{ /* Save to avi file: */
CvSize S = cvSize(pI->width, pI->height);
if (pBTAvi == NULL)
{
pBTAvi = cvCreateVideoWriter(
btavi_name,
CV_FOURCC('x', 'v', 'i', 'd'),
25,
S);
}
cvWriteFrame(pBTAvi, pI);
}
cvReleaseImage(&pI);
} /* Draw all information about test sequence. */
} /* Main loop. */
if (pFGAvi)cvReleaseVideoWriter(&pFGAvi);
if (pBTAvi)cvReleaseVideoWriter(&pBTAvi);
return 0;
} /* RunBlobTrackingAuto */
