CBlobResult getBlobs(IplImage* tmp_frame, IplImage* binFore){
 
	//IplImage* binFore = cvCreateImage(cvGetSize(tmp_frame),IPL_DEPTH_8U,1);
		
	//get the binary foreground object
	//cvSub( getBinaryImage(tmp_frame) , binBack, binFore, NULL );
	//if(!cvSaveImage("binFore.jpg",binFore)) printf("Could not save the backgroundimage\n");
	
	//!Starting the extracting of Blob
	CBlobResult blobs;
	
	//! get the blobs from the image, with no mask, using a threshold of 100
	blobs = CBlobResult( binFore, NULL, 10, true );
	
	//! Create a file with all the found blob
	blobs.PrintBlobs( "blobs.txt" );

	//! discard the blobs with less area than 60 pixels
	blobs.Filter( blobs, B_INCLUDE, CBlobGetArea(), B_GREATER, 40);
	
	//!This two row of code are to filter the blob find from the library by a bug that match ablob like all the 	image and return the center of it
	blobs.Filter( blobs, B_INCLUDE, CBlobGetArea(), B_LESS, (tmp_frame->height)*(tmp_frame->width)*0.8);
	blobs.Filter( blobs, B_INCLUDE, CBlobGetPerimeter(), B_LESS, (tmp_frame->height)+(tmp_frame->width)*2*0.8);
	
	//! Create a file with filtered results
	blobs.PrintBlobs( "filteredBlobs.txt" );
	//return blobs;

	return blobs;
}
void ForegroundDetector::nextIteration(const Mat &img)
{
    if(bgImg.empty())
    {
        return;
    }

    Mat absImg = Mat(img.cols, img.rows, img.type());
    Mat threshImg = Mat(img.cols, img.rows, img.type());

    absdiff(bgImg, img, absImg);
    threshold(absImg, threshImg, fgThreshold, 255, CV_THRESH_BINARY);

    IplImage im = (IplImage)threshImg;
    CBlobResult blobs = CBlobResult(&im, NULL, 0);

    blobs.Filter(blobs, B_EXCLUDE, CBlobGetArea(), B_LESS, minBlobSize);

    vector<Rect>* fgList = detectionResult->fgList;
    fgList->clear();

    for(int i = 0; i < blobs.GetNumBlobs(); i++)
    {
        CBlob *blob = blobs.GetBlob(i);
        CvRect rect = blob->GetBoundingBox();
        fgList->push_back(rect);
    }

}
Beispiel #3
0
/* Detect blobs larger than min_size in a given IplImage. */
CBlobResult MarkerCapture::detect_blobs(IplImage *img, int min_size = 10){
    // find white blobs in thresholded image
    CBlobResult blobs = CBlobResult(img, NULL, 0);
    // exclude ones smaller than min_size.
    blobs.Filter(blobs, B_EXCLUDE, CBlobGetArea(), B_LESS, min_size);
    return blobs;
}
Beispiel #4
0
CBlobResult computeWhiteMaskOtsu(Mat& imgRGBin, Mat& imgHSVIn, CBlobResult& blobs, int limitRGB, int limitHSV, double RGBratio, double HSVratio, int bmin, int bmax, int i){
	waitKey(30);
	Mat BGRbands[3];  
	split(imgRGBin,BGRbands);
	Mat imgHSV;
	cvtColor(imgHSVIn,imgHSV,CV_BGR2HSV);
	Mat HSVbands[3];  
	split(imgHSV,HSVbands);
	Mat maskHSV, maskRGB, maskT;

	int otsuTRGB = getThreshVal_Otsu_8u(BGRbands[2]);
	do{
		threshold(BGRbands[2],maskRGB,otsuTRGB,255,THRESH_BINARY);
		otsuTRGB++;
	}while(countNonZero(maskRGB)>(RGBratio*limitRGB) & otsuTRGB<=255);
	int otsuTHSV = getThreshVal_Otsu_8u(HSVbands[1]);
	do{	
		threshold(HSVbands[1],maskHSV,otsuTHSV,255,THRESH_BINARY_INV);
		otsuTHSV--;
	}while(countNonZero(maskHSV)>(HSVratio*limitHSV) & otsuTHSV>=0); // 0.1
	bitwise_or(maskHSV,maskRGB,maskT);
	int blobSizeBefore = blobs.GetNumBlobs();
    blobs = blobs + CBlobResult( maskT ,Mat(),8);
	blobs.Filter( blobs, B_EXCLUDE, CBlobGetLength(), B_GREATER, bmax );
	blobs.Filter( blobs, B_EXCLUDE, CBlobGetLength(), B_LESS, bmin );
	int blobSizeAfter = blobs.GetNumBlobs();
	Mat newMask(maskT.size(),maskT.type());
    newMask.setTo(0);
    for(;i<blobs.GetNumBlobs();i++){
		double area = blobs.GetBlob(i)->Area();
		if(area < 5000 && area > 400)
			blobs.GetBlob(i)->FillBlob(newMask,CV_RGB(255,255,255),0,0,true);
    }
	if(countNonZero(maskRGB)>400 && countNonZero(maskHSV)>400 && blobSizeBefore!=blobSizeAfter){
		vector<Mat> BGRbands;  split(imgRGBin,BGRbands);
		Mat maskedRGB = applyMaskBandByBand(newMask,BGRbands);
		bitwise_not(newMask,newMask);
		split(imgHSVIn,BGRbands);
		Mat maskedHSV = applyMaskBandByBand(newMask,BGRbands);
		blobs = computeWhiteMaskOtsu(maskedRGB, maskedHSV, blobs, countNonZero(maskRGB),countNonZero(maskHSV),RGBratio, HSVratio, bmin, bmax, i-1);
	}		
	return blobs;
}
void givedepth(IplImage *localimagergb)
{	IplImage*localimage=cvCreateImage(cvGetSize(localimagergb),IPL_DEPTH_8U,3);
	cvCvtColor(localimagergb,localimage,CV_BGR2HSV);
	IplImage *blobbedscaling=cvCreateImage(cvGetSize(localimagergb),IPL_DEPTH_8U,3);
	uchar *itemp=(uchar *)(localimage->imageData);
    IplImage *binaryscaling=cvCreateImage(cvGetSize(localimagergb),IPL_DEPTH_8U,1);
	uchar *itemp1=(uchar *)(binaryscaling ->imageData);
	for(int i=0;i<hi2->height;i++){
			for(int j=0;j<hi2->width;j++){	

					if((itemp[i*localimage->widthStep+j*localimage->nChannels] <hh)	       
					&&
					(itemp[i*localimage->widthStep+j*localimage->nChannels]>hl)
				    &&
					(itemp[i*localimage->widthStep+j*localimage->nChannels+1]<sh)
					&&
					(itemp[i*localimage->widthStep+j*localimage->nChannels+1]>sl)
					&& 
					( itemp[i*localimage->widthStep+j*localimage->nChannels+2]<vh)			
					 &&
					( itemp[i*localimage->widthStep+j*localimage->nChannels+2]>vl)		//previous 124
					)	{
						itemp1[i*binaryscaling->widthStep+j]=0;					//dark regions black rest white
						}
					else
						itemp1[i*binaryscaling->widthStep+j]=255;
			}}
    cvErode( binaryscaling, binaryscaling, NULL, 4);
	cvDilate(binaryscaling, binaryscaling, NULL, 4);
	CBlobResult  blob;				
	CBlob *currentBlob=NULL;
	blob=CBlobResult(binaryscaling,NULL,255);
	blob.Filter(blob,B_EXCLUDE,CBlobGetArea(),B_LESS,500);
	cvMerge(binaryscaling,binaryscaling,binaryscaling,NULL,blobbedscaling);
	CBlob hand1,hand2;																//two blobs,one for each hand
	blob.GetNthBlob( CBlobGetArea(), 0, (hand2));	
	blob.GetNthBlob( CBlobGetArea(), 1, (hand1 ));
	hand1.FillBlob(blobbedscaling,CV_RGB(0,0,255));											//fill the color of blob of hand one with blue
	hand2.FillBlob(blobbedscaling,CV_RGB(0,255,0));											//fill the color of blob of hand two with green 
	coordinates (blobbedscaling,0);
}
Beispiel #6
0
// threshold trackbar callback
void on_trackbar( int dummy )
{
	if(!originalThr)
	{
		originalThr = cvCreateImage(cvGetSize(original), IPL_DEPTH_8U,1);
	}

	if(!displayedImage)
	{
		displayedImage = cvCreateImage(cvGetSize(original), IPL_DEPTH_8U,3);
	}
	
	// threshold input image
	cvThreshold( original, originalThr, param1, 255, CV_THRESH_BINARY );

	// get blobs and filter them using its area
	CBlobResult blobs;
	int i;
	CBlob *currentBlob;

	// find blobs in image
	blobs = CBlobResult( originalThr, NULL, 255 );
	blobs.Filter( blobs, B_EXCLUDE, CBlobGetArea(), B_LESS, param2 );

	// display filtered blobs
	cvMerge( originalThr, originalThr, originalThr, NULL, displayedImage );

	for (i = 0; i < blobs.GetNumBlobs(); i++ )
	{
		currentBlob = blobs.GetBlob(i);
		currentBlob->FillBlob( displayedImage, CV_RGB(255,0,0));
	}
	 
    cvShowImage( wndname, displayedImage );
	
}
Beispiel #7
0
 int main() {
  CvPoint pt1,pt2;
  CvRect regt;
  CvPoint cir_center;
  CvPoint frame_center;
  CvPoint A,B,C,D;
  CvPoint temp;
  double angle,spinsize;
  int cir_radius=1; 
  int frame_width=160, frame_height=120;
   CvCapture* capture = cvCaptureFromCAM( CV_CAP_ANY );
   if ( !capture ) {
     fprintf(stderr, "ERROR: capture is NULL \n" );
     getchar();
     return -1;
   }
  cvSetCaptureProperty(capture,CV_CAP_PROP_FRAME_WIDTH,frame_width);// 120x160 
  cvSetCaptureProperty(capture,CV_CAP_PROP_FRAME_HEIGHT,frame_height);
  //cvSetCaptureProperty(capture, CV_CAP_PROP_FPS,10);
//  cvSetCaptureProperty(capture,CV_CAP_PROP_POS_FRAMES,5);  
 // Create a window in which the captured images will be presented
   cvNamedWindow( "mywindow", CV_WINDOW_AUTOSIZE );
   // Show the image captured from the camera in the window and repeat
   while ( 1 ) {
     // Get one frame
     IplImage* frame = cvQueryFrame( capture );
     if ( !frame ) {
       fprintf( stderr, "ERROR: frame is null...\n" );
       getchar();
       break;
     }
     int modfheight, modfwidth;

     modfheight = frame->height;
     modfwidth = frame->width;
     // create modified frame with 1/4th the original size
     IplImage* modframe = cvCreateImage(cvSize((int)(modfwidth/4),(int)(modfheight/4)),frame->depth,frame->nChannels); //cvCreateImage(size of frame, depth, noofchannels)
     cvResize(frame, modframe,CV_INTER_LINEAR);
     // create HSV(Hue, Saturation, Value) frame
     IplImage* hsvframe = cvCreateImage(cvGetSize(modframe),8, 3);
     cvCvtColor(modframe, hsvframe, CV_BGR2HSV); //cvCvtColor(input frame,outputframe,method)
     // create a frame within threshold.
     IplImage* threshframe = cvCreateImage(cvGetSize(hsvframe),8,1);
     cvInRangeS(hsvframe,cvScalar(15, 100, 100),cvScalar(60, 220, 220),threshframe); //cvInRangeS(input frame, cvScalar(min range),cvScalar(max range),output frame)
     // created dilated image
     IplImage* dilframe = cvCreateImage(cvGetSize(threshframe),8,1);
     cvDilate(threshframe,dilframe,NULL,2); //cvDilate(input frame, output frame, mask, number of times to dilate)

     CBlobResult blobs;
     blobs = CBlobResult(dilframe,NULL,0); // CBlobresult(inputframe, mask, threshold) Will filter all white parts of image
     blobs.Filter(blobs,B_EXCLUDE,CBlobGetArea(),B_LESS,50);//blobs.Filter(input, cond, criteria, cond, const) Filter all images whose area is less than 50 pixels
     CBlob biggestblob;
     blobs.GetNthBlob(CBlobGetArea(),0,biggestblob); //GetNthBlob(criteria, number, output) Get only the largest blob based on CblobGetArea()
     // get 4 points to define the rectangle
     pt1.x = biggestblob.MinX()*4;
     pt1.y = biggestblob.MinY()*4;
     pt2.x = biggestblob.MaxX()*4;
     pt2.y = biggestblob.MaxY()*4;
     cir_center.x=(pt1.x+pt2.x)/2;
     cir_center.y=(pt1.y+pt2.y)/2;
     frame_center.x=frame_width/2;
     frame_center.y=frame_height/2;
     A.x=frame_center.x-4;
     A.y=frame_center.y;
     B.x=frame_center.x+4;
     B.y=frame_center.y;
     C.y=frame_center.y-4;
     C.x=frame_center.x;
     D.y=frame_center.y+4;
     D.x=frame_center.x;
     cvRectangle(frame,pt1,pt2,cvScalar(255,0,0),1,8,0); // draw rectangle around the biggest blob
     cvCircle( frame, cir_center, cir_radius, cvScalar(0,255,255), 1, 8, 0 ); // center point of the rectangle
     cvLine(frame, A, B,cvScalar(255,0,255),2,8,0);
     cvLine(frame, C, D,cvScalar(255,0,255),2,8,0);
     if (cir_center.x!=0&&cir_center.y!=0){
     spinsize=sqrt((cir_center.x-frame_center.x)*(cir_center.x-frame_center.x) +(cir_center.y-frame_center.y)*(cir_center.y-frame_center.y));
     angle = atan2((double)cir_center.y-frame_center.y,(double)cir_center.x-frame_center.x);
     temp.x=(int)(frame_center.x+spinsize/5*cos(angle+3.1416/4));
     temp.y=(int)(frame_center.y+spinsize/5*sin(angle+3.1415/4));
     cvLine(frame, temp, frame_center,cvScalar(0,255,0),1,8,0);	

     temp.x=(int)(frame_center.x+spinsize/5*cos(angle-3.1416/4));
     temp.y=(int)(frame_center.y+spinsize/5*sin(angle-3.1415/4));
     cvLine(frame, temp, frame_center,cvScalar(0,255,0),1,8,0);	
	
     cvLine(frame, cir_center, frame_center,cvScalar(0,255,0),1,8,0);

     //cvCircle( frame, frame_center, cir_radius, cvScalar(0,255,255), 2, 8, 0 );
}
     cvShowImage( "mywindow", frame); // show output image
     // Do not release the frame!
     //If ESC key pressed, Key=0x10001B under OpenCV 0.9.7(linux version),
     //remove higher bits using AND operator
     if ( (cvWaitKey(10) & 255) == 27 ) break;
   }
   // Release the capture device housekeeping
   cvReleaseCapture( &capture );
   cvDestroyWindow( "mywindow" );
   return 0;
 }
void TrackerCvBlobsLib::trackBlobs(const Mat &mat, const Mat &areaMask, bool history, std::vector<Area> *pareas)
{
	double min_area = *m_pmin_area;
	double max_area = *m_pmax_area;
	double max_radius_2 = *m_pmax_radius * *m_pmax_radius;
	double x, y, min_x, min_y, max_x, max_y;
	double min_depth,max_depth;
	Scalar sdepth, sstddev;
	cBlob temp;
	bool new_hand(true);
	int mat_area(mat.size().width*mat.size().height);

	// we will convert the matrix object passed from our cFilter class to an object of type IplImage for calling the CBlobResult constructor
	IplImage img;
	IplImage areaImg;

	// storage of the current blobs and the blobs from the previous frame
	Size s;	Point p;
	mat.locateROI(s,p);
	areaImg = areaMask;

	// convert our OpenCV matrix object to one of type IplImage
	img = mat;

	// cvblobslib blob extraction
	blob_result = CBlobResult(&img, NULL, 1/*img∈{0,255}->thresh unimportant*/, false);
	blob_result.Filter(blob_result, B_EXCLUDE, CBlobGetArea(), B_LESS, min_area); 
	blob_result.Filter(blob_result, B_EXCLUDE, CBlobGetArea(), B_GREATER, max_area);

	// clear the blobs from two frames ago
	blobs_previous.clear();
	
	// before we populate the blobs vector with the current frame, we need to store the live blobs in blobs_previous
	for (int i = 0; i < blobs.size(); i++)
		if (blobs[i].event != BLOB_UP)
			blobs_previous.push_back(blobs[i]);


	// populate the blobs vector with the current frame
	blobs.clear();
	for (int i = 0; i < blob_result.GetNumBlobs(); i++) {
		current_blob = blob_result.GetBlob(i);

		x     = XCenter(current_blob)/*+m_pSettingKinect->m_kinectProp.roi.x*/;
		y     = YCenter(current_blob)/*+m_pSettingKinect->m_kinectProp.roi.y*/;

//		temp.areaid = areaMask.at<uchar>((int)x+p.x,(int)y+p.y);//?!not works
		temp.areaid = (uchar) areaImg.imageData[ ((int)x+p.x) + ((int)y+p.y)*areaMask.size().width];//works
		if( temp.areaid == 0 ) continue;

		min_x = MinX(current_blob);
		min_y = MinY(current_blob);
		max_x = MaxX(current_blob);
		max_y = MaxY(current_blob);

		if( (max_x-min_x)*(max_y-min_y) > 0.9*mat_area) continue;// fix blob detection issue?!

		temp.location.x = temp.origin.x = x;
		temp.location.y = temp.origin.y = y;
		temp.min.x = min_x; temp.min.y = min_y;
		temp.max.x = max_x; temp.max.y = max_y;

		//Rect r(min_x+p.x,min_y+p.x, max_x-min_y, max_y-min_y);
		//Rect r(min_x,min_y, max_x-min_x, max_y-min_y);//width, height +1?!
		Rect r( x-3, y-3, min(7,max_x-min_x), min(7, max_y-min_y));


		//z = mean( mat(r), mat(r) )[0];/* mean is not good. The blob can include many pixel behind the frame depth*/

		/* Depth detection. The measurement method is flexible. */
		if( m_pSettingKinect->m_kinectProp.areaThresh ){
			/* Mean is ok, because all pixels of the blob are in front of the frame. */
			max_depth = mean( mat(r), mat(r) )[0]+4;/*correct blur(1) and area thresh shift (3)*/
			//meanStdDev( mat(r), sdepth, sstddev, mat(r) );
			//max_depth = sdepth[0]+3*sstddev[0];
			//minMaxLoc( mat(r), &min_depth, &max_depth, NULL, NULL, mat(r) );

		}else	if( pareas != NULL){
			/* Remove values behind the area depth and count mean of rest.
				This is problematic/choppy if to many pixels are removed.
			*/
			max_depth = max( (*pareas)[temp.areaid-1].depth-22, 
					mean( mat(r), mat(r)>(*pareas)[temp.areaid-1].depth-2 )[0] + 1);

		}else{
			/* Very few information. Use maximum of blob. (Choppy).
			 * Can be improved, if mean of i.e. 10 biggest values is used
			 * minMaxLoc require filtered/blured images.
			 * */
			//max_depth = 0;
			minMaxLoc( mat(r), &min_depth, &max_depth, NULL, NULL, mat(r) );
		}
		//printf("Compared depth of area/blob: %i %f\n",(*pareas)[temp.areaid-1].depth ,max_depth);

		/* Compare depth of hand with depth of area and throw blob away if hand to far away. */
		if(pareas != NULL && max_depth - (*pareas)[temp.areaid-1].depth < -1 ){
			//printf("Hand not reached area depth.\n");
			continue ;
		}

		temp.location.z = temp.origin.z = max_depth;

		blobs.push_back(temp);
	}

	// initialize previous blobs to untracked
	float d1,d2;
	for (int i = 0; i < blobs_previous.size(); i++) blobs_previous[i].tracked = false;

	// main tracking loop -- O(n^2) -- simply looks for a blob in the previous frame within a specified radius
	for (int i = 0; i < blobs.size(); i++) {
		cBlob &blobi = blobs[i];
		new_hand = true;
		for (int j = 0; j < blobs_previous.size(); j++) {
			if (blobs_previous[j].tracked) continue;

			d1=blobs[i].location.x - blobs_previous[j].location.x;
			d2=blobs[i].location.y - blobs_previous[j].location.y;
			if (blobs[i].areaid == blobs_previous[j].areaid 
					&& (d1*d1 + d2*d2) < max_radius_2) {
				blobs_previous[j].tracked = true;
				blobs[i].event = BLOB_MOVE;
				blobs[i].origin.x = history ? blobs_previous[j].origin.x : blobs_previous[j].location.x;
				blobs[i].origin.y = history ? blobs_previous[j].origin.y : blobs_previous[j].location.y;
				blobs[i].origin.z = history ? blobs_previous[j].origin.z : blobs_previous[j].location.z;

				blobs[i].handid = blobs_previous[j].handid;
				blobs[i].cursor = blobs_previous[j].cursor;
				blobs[i].cursor25D = blobs_previous[j].cursor25D;
				new_hand = false;
				break;
			}
		}
		/* assing free handid if new blob */
		if( new_hand){

			//search next free id.
			int next_handid = (last_handid+1) % MAXHANDS;//or = 0;
			while( handids[next_handid]==true && next_handid!=last_handid ){
					next_handid = (next_handid+1) % MAXHANDS;
			} //if array full -> next_handid = last_handid

			blobs[i].event = BLOB_DOWN;
			blobs[i].handid = next_handid;
			blobs[i].cursor = NULL;
			blobs[i].cursor25D = NULL;

			handids[next_handid] = true;
			last_handid = next_handid;
		}
	}

	// add any blobs from the previous frame that weren't tracked as having been removed
	for (int i = 0; i < blobs_previous.size(); i++) {
		if (!blobs_previous[i].tracked) {
			//free handid
			handids[blobs_previous[i].handid] = false;
			blobs_previous[i].event = BLOB_UP;
			blobs.push_back(blobs_previous[i]);
		}
	}
/*
	for (int i = 1; i < blob_result.GetNumBlobs(); i++) {
				current_blob = blob_result.GetBlob(i);
				printf("Blobcoordsd %f, %f\n", XCenter(current_blob), YCenter(current_blob) );
	}
*/
	int counter = 0;
	cBlob tb;
	for (int i = 0; i < blobs.size(); i++) {
			if( blobs[i].event != BLOB_UP ){
				counter++;
				tb = blobs[i];
				//printf("Blobcoordsd %f, %f\n", blobs[i].location.x, blobs[i].location.y );
				//printf("Blob areaid: %i, handid: %i, (%f,%f)\n", blobs[i].areaid, blobs[i].handid, blobs[i].location.x, blobs[i].location.y );
				if(! *m_pnotDrawBlob ){
					cvLine(&img,
							Point((int)tb.origin.x,(int)tb.origin.y),
							Point((int)tb.location.x,(int)tb.location.y),Scalar(244),2);
					cvRectangle(&img,
							Point((int)tb.min.x,(int)tb.min.y),
							Point((int)tb.max.x,(int)tb.max.y),Scalar(255),2);
				}
			}
	}
//	printf("Active blobs: %i %i %i\n",counter, blobs.size(), blob_result.GetNumBlobs());
/*	for(int i=0; i<MAXHANDS; i++){
		printf("%i,", (handids[i]==true)?1:0);
	}
	printf("\n");*/
}
Beispiel #9
0
 int main() {
  CvPoint pt1b,pt2b, pt1t,pt2t,ptarry[4];
  int tempwidth,tempheight;
  CvRect regt,rectROIbot,rectROItop;
  rectROItop=cvRect(0,0,80,10);
  rectROIbot=cvRect(0,50,80,10);
  CvPoint b_cir_center,t_cir_center;
  CvPoint frame_center;
  CvPoint A,B,C,D;
  CvPoint temp;
  double angle,spinsize;
  int cir_radius=1; 
  int frame_width=160, frame_height=120;
  IplImage* frame;
  IplImage* threshframe;
  IplImage* hsvframe;
  IplImage* threshframebot;
  IplImage* threshframetop;
  IplImage* modframe;
  IplImage* dilframetop;
  IplImage* dilframebot;
  int moddiv=2,seq=0,seqdiv=2;
  int release=0, rmax=100;
  int modfheight, modfwidth;
  unsigned char sendBuf;/*
  int serial;
  serial = openSerial("/dev/ttyACM0");
  if (serial == -1)
  serial = openSerial("/dev/ttyACM1");
  if (serial == -1)
  serial = openSerial("/dev/ttyACM2"); 
  if (serial == -1)
  serial = openSerial("/dev/ttyACM3");	
  if (serial == -1)
  serial = openSerial("/dev/ttyACM4");	
  if (serial == -1)
  serial = openSerial("/dev/ttyACM5");
  if (serial == -1)
  serial = openSerial("/dev/ttyACM6"); 
  if (serial == -1)
  serial = openSerial("/dev/ttyACM7");	
  if (serial == -1)
  serial = openSerial("/dev/ttyACM8");	
if( serial == -1 ) {
return -1;
}*/
   //CvCapture* capture = cvCaptureFromCAM( CV_CAP_ANY );
   CvCapture* capture = cvCaptureFromCAM( 1 );
   if ( !capture ) {
     fprintf(stderr, "ERROR: capture is NULL \n" );
     getchar();
     return -1;
   }
  cvSetCaptureProperty(capture,CV_CAP_PROP_FRAME_WIDTH,frame_width);// 120x160 
  cvSetCaptureProperty(capture,CV_CAP_PROP_FRAME_HEIGHT,frame_height);
 // cvSetCaptureProperty(capture, CV_CAP_PROP_FPS,10);
//  cvSetCaptureProperty(capture,CV_CAP_PROP_POS_FRAMES,5);  
 // Create a window in which the captured images will be presented
   cvNamedWindow( "mywindow", CV_WINDOW_AUTOSIZE );
   // Show the image captured from the camera in the window and repeat
   while ( 1 ) {
     // Get one frame
      frame = cvQueryFrame( capture );
     if ( !frame ) {
       fprintf( stderr, "ERROR: frame is null...\n" );
       getchar();
       break;
     }

     modfheight = frame->height;
     modfwidth = frame->width;
      modframe = cvCreateImage(cvSize((int)(modfwidth/moddiv),(int)(modfheight/moddiv)),frame->depth,frame->nChannels); //cvCreateImage(size of frame, depth, noofchannels)
     cvResize(frame, modframe,CV_INTER_LINEAR);
     // create HSV(Hue, Saturation, Value) frame
      hsvframe = cvCreateImage(cvGetSize(modframe),8, 3);
      
     cvCvtColor(modframe, hsvframe, CV_BGR2HSV); //cvCvtColor(input frame,outputframe,method)

      threshframe = cvCreateImage(cvGetSize(hsvframe),8,1);
    // cvInRangeS(hsvframe,cvScalar(0, 180, 140),cvScalar(15, 230, 235),threshframe); //cvInRangeS(input frame, cvScalar(min range),cvScalar(max range),output frame) red
     cvInRangeS(hsvframe,cvScalar(70, 180, 40),cvScalar(100, 230, 90),threshframe); //cvInRangeS(input frame, cvScalar(min range),cvScalar(max range),output frame)
     
      threshframebot=cvCloneImage(threshframe);
      cvSetImageROI(threshframebot,rectROIbot);

      threshframetop=cvCloneImage(threshframe);
      cvSetImageROI(threshframetop,rectROItop);
 
//////////////////////////////////////////////////////////////////////////////////////////
    if (seq==0) {
      threshframebot=cvCloneImage(threshframe);
      cvSetImageROI(threshframebot,rectROIbot);
     dilframebot = cvCreateImage(cvGetSize(threshframebot),8,1);
     cvDilate(threshframebot,dilframebot,NULL,2); //cvDilate(input frame,

   //  tempwidth=cvGetSize(dilframebot).width;
   //  tempheight=cvGetSize(dilframebot).height;
   //  printf("dilframe: %d, %d \n",tempwidth,tempheight);
     CBlobResult blobs_bot;
     blobs_bot = CBlobResult(dilframebot,NULL,0); // CBlobresult(inputframe, mask, threshold) Will filter all white parts of image
     blobs_bot.Filter(blobs_bot,B_EXCLUDE,CBlobGetArea(),B_LESS,50);//blobs.Filter(input, cond, criteria, cond, const) Filter all images whose area is less than 50 pixels
     CBlob biggestblob_bot;
     blobs_bot.GetNthBlob(CBlobGetArea(),0,biggestblob_bot); //GetNthBlob(criteria, number, output) Get only the largest blob based on CblobGetArea()
     // get 4 points to define the rectangle
     pt1b.x = biggestblob_bot.MinX()*moddiv;
     pt1b.y = biggestblob_bot.MinY()*moddiv+100;
     pt2b.x = biggestblob_bot.MaxX()*moddiv;
     pt2b.y = biggestblob_bot.MaxY()*moddiv+100;
     b_cir_center.x=(pt1b.x+pt2b.x)/2;
     b_cir_center.y=(pt1b.y+pt2b.y)/2;}
//////////////////////////////////////////////////////////////////////////////////////////
    if(seq==seqdiv){
      threshframetop=cvCloneImage(threshframe);
      cvSetImageROI(threshframetop,rectROItop);
      dilframetop = cvCreateImage(cvGetSize(threshframetop),8,1);
     cvDilate(threshframetop,dilframetop,NULL,2); //cvDilate(input frame,
     CBlobResult blobs_top;
     blobs_top = CBlobResult(dilframetop,NULL,0); // CBlobresult(inputframe, mask, threshold) Will filter all white parts of image
     blobs_top.Filter(blobs_top,B_EXCLUDE,CBlobGetArea(),B_LESS,50);//blobs.Filter(input, cond, criteria, cond, const) Filter all images whose area is less than 50 pixels
     CBlob biggestblob_top;
     blobs_top.GetNthBlob(CBlobGetArea(),0,biggestblob_top); //GetNthBlob(criteria, number, output) Get only the largest blob based on CblobGetArea()
     // get 4 points to define the rectangle
     pt1t.x = biggestblob_top.MinX()*moddiv;
     pt1t.y = biggestblob_top.MinY()*moddiv;
     pt2t.x = biggestblob_top.MaxX()*moddiv;
     pt2t.y = biggestblob_top.MaxY()*moddiv;
     t_cir_center.x=(pt1t.x+pt2t.x)/2;
     t_cir_center.y=(pt1t.y+pt2t.y)/2;}
//////////////////////////////////////////////////////////////////////////////////////
   if(seq==seqdiv+2) {
     frame_center.x=frame_width/2;
     frame_center.y=frame_height/2;
     A.x=frame_center.x-4;
     A.y=frame_center.y;
     B.x=frame_center.x+4;
     B.y=frame_center.y;
     C.y=frame_center.y-4;
     C.x=frame_center.x;
     D.y=frame_center.y+4;
     D.x=frame_center.x;
     cvRectangle(frame,pt1t,pt2t,cvScalar(255,0,0),1,8,0);
     cvRectangle(frame,pt1b,pt2b,cvScalar(255,0,0),1,8,0); // draw rectangle around the biggest blob
     //cvRectangle(frame,pt1,pt2,cvScalar(255,0,0),1,8,0);
     cvCircle( frame, b_cir_center, cir_radius, cvScalar(0,255,255), 1, 8, 0 ); // center point of the rectangle
     cvLine(frame, A, B,cvScalar(255,0,255),2,8,0);
     cvLine(frame, C, D,cvScalar(255,0,255),2,8,0);
    

    if (b_cir_center.x!=0&&b_cir_center.y!=100) 
    {
    cvLine(frame, b_cir_center, frame_center,cvScalar(0,255,0),1,8,0);
    }

    if(t_cir_center.x!=0&&t_cir_center.y!=0)
     {
     cvLine(frame, frame_center, t_cir_center,cvScalar(255,255,0),1,8,0);
     }
     if ((b_cir_center.x!=0&&b_cir_center.y!=100)&&(t_cir_center.x!=0&&t_cir_center.y!=0)) 
     {
     cvLine(frame, b_cir_center, t_cir_center,cvScalar(0,255,255),1,8,0);
     printf("%d, %d, %d, %d\n",t_cir_center.x,t_cir_center.y,b_cir_center.x,b_cir_center.y);
     }
		
}
    seq++;
    seq=seq%(seqdiv+4);
     cvShowImage( "mywindow", frame); // show output image
     cvShowImage( "bot", threshframebot);
     cvShowImage( "top", threshframetop);

   //  cvShowImage("croped",cropped);
     //cvShowImage( "mywindow3", dilframeROI);
     // Do not release the frame!
     //If ESC key pressed, Key=0x10001B under OpenCV 0.9.7(linux version),
     //remove higher bits using AND operator
     if ( (cvWaitKey(10) & 255) == 27 ) break;
   }
   // Release the capture device housekeeping
   cvReleaseCapture( &capture );
   cvDestroyWindow( "mywindow" );
   return 0;

 }
void
Auvsi_Recognize::extractShape( void )
{
	typedef cv::Vec<T, 1> VT;

	// Reduce input to two colors
	cv::Mat reducedColors = doClustering<T>( _image, 2 );	
	cv::Mat grayScaled, binary;

	// Make output grayscale
	grayScaled = convertToGray( reducedColors );
	//cv::cvtColor( reducedColors, grayScaled, CV_RGB2GRAY );

	// Make binary
	double min, max;
	cv::minMaxLoc( grayScaled, &min, &max );
	cv::threshold( grayScaled, binary, min, 1.0, cv::THRESH_BINARY );	

	// ensure that background is black, image white
	if( binary.at<VT>(0, 0)[0] > 0.0f )
		cv::threshold( grayScaled, binary, min, 1.0, cv::THRESH_BINARY_INV );

	binary.convertTo( binary, CV_8U, 255.0f );

	// Fill in all black regions smaller than largest black region with white
	CBlobResult blobs;
	CBlob * currentBlob;
	IplImage binaryIpl = binary;
	blobs = CBlobResult( &binaryIpl, NULL, 255 );
	
	// Get area of biggest blob
	CBlob biggestBlob;
	blobs.GetNthBlob( CBlobGetArea(), 0, biggestBlob );

	// Remove all blobs of smaller area
	blobs.Filter( blobs, B_EXCLUDE, CBlobGetArea(), B_GREATER_OR_EQUAL, biggestBlob.Area() );

	for (int i = 0; i < blobs.GetNumBlobs(); i++ )
	{
    	currentBlob = blobs.GetBlob(i);
		currentBlob->FillBlob( &binaryIpl, cvScalar(255));
	}
	


	// Fill in all small white regions black 
	blobs = CBlobResult( &binaryIpl, NULL, 0 );
	blobs.GetNthBlob( CBlobGetArea(), 0, biggestBlob );

	blobs.Filter( blobs, B_EXCLUDE, CBlobGetArea(), B_GREATER_OR_EQUAL, biggestBlob.Area() );

	for (int i = 0; i < blobs.GetNumBlobs(); i++ )
	{
    	currentBlob = blobs.GetBlob(i);
		currentBlob->FillBlob( &binaryIpl, cvScalar(0));
	}

	binary = cv::Scalar(0);
	biggestBlob.FillBlob( &binaryIpl, cvScalar(255));

	_shape = binary;
} 
Beispiel #11
0
 int main() {
  CvPoint pt1b,pt2b, pt1t,pt2t,ptarry[4];
  int tempwidth,tempheight;
  CvRect regt,rectROIbot,rectROItop;
  rectROItop=cvRect(0,0,80,10);
  rectROIbot=cvRect(0,50,80,10);
  CvPoint b_cir_center,t_cir_center;
  CvPoint frame_center;
  CvPoint A,B,C,D;
  CvPoint temp;
  double angle,spinsize;
  int cir_radius=1; 
  int frame_width=160, frame_height=120;
  IplImage* frame;
  IplImage* threshframe;
  IplImage* hsvframe;
  IplImage* threshframebot;
  IplImage* threshframetop;
  IplImage* modframe;
  IplImage* dilframetop;
  IplImage* dilframebot;
  int release=0, rmax=100;
  int modfheight, modfwidth;
  int_serial();
  unsigned char sendBuf;
   CvCapture* capture = cvCaptureFromCAM( -1 );
   if ( !capture ) {
     fprintf(stderr, "ERROR: capture is NULL \n" );
     getchar();
     return -1;
   }
  cvSetCaptureProperty(capture,CV_CAP_PROP_FRAME_WIDTH,frame_width);// 120x160 
  cvSetCaptureProperty(capture,CV_CAP_PROP_FRAME_HEIGHT,frame_height);
  cvNamedWindow( "mywindow", CV_WINDOW_AUTOSIZE );
   while ( 1 ) {
     // Get one frame
      frame = cvQueryFrame( capture );
     if ( !frame ) {
       fprintf( stderr, "ERROR: frame is null...\n" );
       getchar();
       break;
     }

     modfheight = frame->height;
     modfwidth = frame->width;
      modframe = cvCreateImage(cvSize((int)(modfwidth/moddiv),(int)(modfheight/moddiv)),frame->depth,frame->nChannels); //cvCreateImage(size of frame, depth, noofchannels)
     cvResize(frame, modframe,CV_INTER_LINEAR);
      hsvframe = cvCreateImage(cvGetSize(modframe),8, 3);
     cvCvtColor(modframe, hsvframe, CV_BGR2HSV); //cvCvtColor(input frame,outputframe,method)
      threshframe = cvCreateImage(cvGetSize(hsvframe),8,1);
    // cvInRangeS(hsvframe,cvScalar(0, 180, 140),cvScalar(15, 230, 235),threshframe); //cvInRangeS(input frame, cvScalar(min range),cvScalar(max range),output frame) red
     cvInRangeS(hsvframe,cvScalar(100, 20, 40),cvScalar(140, 120, 100),threshframe); //cvInRangeS(input frame, cvScalar(min range),cvScalar(max range),output frame)
     
      threshframebot=cvCloneImage(threshframe);
      cvSetImageROI(threshframebot,rectROIbot);

      threshframetop=cvCloneImage(threshframe);
      cvSetImageROI(threshframetop,rectROItop);
 
//////////////////////////////////////////////////////////////////////////////////////////
   if (seq==0) {
     threshframebot=cvCloneImage(threshframe);
     cvSetImageROI(threshframebot,rectROIbot);
     dilframebot = cvCreateImage(cvGetSize(threshframebot),8,1);
     cvDilate(threshframebot,dilframebot,NULL,2); //cvDilate(input frame,

     CBlobResult blobs_bot;
     blobs_bot = CBlobResult(dilframebot,NULL,0); // CBlobresult(inputframe, mask, threshold) Will filter all white parts of image
     blobs_bot.Filter(blobs_bot,B_EXCLUDE,CBlobGetArea(),B_LESS,50);//blobs.Filter(input, cond, criteria, cond, const) Filter all images whose area is less than 50 pixels
     CBlob biggestblob_bot;
     blobs_bot.GetNthBlob(CBlobGetArea(),0,biggestblob_bot); //GetNthBlob(criteria, number, output) Get only the largest blob based on CblobGetArea()
     // get 4 points to define the rectangle
     pt1b.x = biggestblob_bot.MinX()*moddiv;
     pt1b.y = biggestblob_bot.MinY()*moddiv+100;
     pt2b.x = biggestblob_bot.MaxX()*moddiv;
     pt2b.y = biggestblob_bot.MaxY()*moddiv+100;
     b_cir_center.x=(pt1b.x+pt2b.x)/2;
     b_cir_center.y=(pt1b.y+pt2b.y)/2;//}
//////////////////////////////////////////////////////////////////////////////////////////
//    if(seq==seqdiv){
      threshframetop=cvCloneImage(threshframe);
      cvSetImageROI(threshframetop,rectROItop);
      dilframetop = cvCreateImage(cvGetSize(threshframetop),8,1);
     cvDilate(threshframetop,dilframetop,NULL,2); //cvDilate(input frame,
     CBlobResult blobs_top;
     blobs_top = CBlobResult(dilframetop,NULL,0); // CBlobresult(inputframe, mask, threshold) Will filter all white parts of image
     blobs_top.Filter(blobs_top,B_EXCLUDE,CBlobGetArea(),B_LESS,50);//blobs.Filter(input, cond, criteria, cond, const) Filter all images whose area is less than 50 pixels
     CBlob biggestblob_top;
     blobs_top.GetNthBlob(CBlobGetArea(),0,biggestblob_top); //GetNthBlob(criteria, number, output) Get only the largest blob based on CblobGetArea()
     // get 4 points to define the rectangle
     pt1t.x = biggestblob_top.MinX()*moddiv;
     pt1t.y = biggestblob_top.MinY()*moddiv;
     pt2t.x = biggestblob_top.MaxX()*moddiv;
     pt2t.y = biggestblob_top.MaxY()*moddiv;
     t_cir_center.x=(pt1t.x+pt2t.x)/2;
     t_cir_center.y=(pt1t.y+pt2t.y)/2;// }
//////////////////////////////////////////////////////////////////////////////////////
//   if(seq==seqdiv+1) {
     frame_center.x=frame_width/2;
     frame_center.y=frame_height/2;
     A.x=frame_center.x-4;
     A.y=frame_center.y;
     B.x=frame_center.x+4;
     B.y=frame_center.y;
     C.y=frame_center.y-4;
     C.x=frame_center.x;
     D.y=frame_center.y+4;
     D.x=frame_center.x;
     cvRectangle(frame,pt1t,pt2t,cvScalar(255,0,0),1,8,0);
     cvRectangle(frame,pt1b,pt2b,cvScalar(255,0,0),1,8,0); // draw rectangle around the biggest blob
     //cvRectangle(frame,pt1,pt2,cvScalar(255,0,0),1,8,0);
     cvCircle( frame, b_cir_center, cir_radius, cvScalar(0,255,255), 1, 8, 0 ); // center point of the rectangle
     cvLine(frame, A, B,cvScalar(255,0,255),2,8,0);
     cvLine(frame, C, D,cvScalar(255,0,255),2,8,0);
    

    if (b_cir_center.x!=0&&b_cir_center.y!=100) 
    {
    cvLine(frame, b_cir_center, frame_center,cvScalar(0,255,0),1,8,0);
    sendchar(253);sendchar(255);sendchar(255);
    sendchar(254);sendchar(b_cir_center.x);sendchar(b_cir_center.y);
    printf("top:(255, 255);  bottom: (%3d, %3d)\n",b_cir_center.x,b_cir_center.y);
    }

    if(t_cir_center.x!=0&&t_cir_center.y!=0)
     {
     cvLine(frame, frame_center, t_cir_center,cvScalar(255,255,0),1,8,0);
    sendchar(253);sendchar(t_cir_center.x);sendchar(t_cir_center.y);
    sendchar(254);sendchar(255); sendchar(255);
    printf("top:(%3d, %3d);  bottom: (255, 255)\n",t_cir_center.x,t_cir_center.y);

    }

     if ((b_cir_center.x!=0&&b_cir_center.y!=100)&&(t_cir_center.x!=0&&t_cir_center.y!=0)) 
     {
     cvLine(frame, b_cir_center, t_cir_center,cvScalar(0,255,255),1,8,0);
     printf("top:(%3d, %3d);  bottom: (%3d, %3d)\n",t_cir_center.x,t_cir_center.y,b_cir_center.x,b_cir_center.y);
     sendchar(253);sendchar(t_cir_center.x); sendchar(t_cir_center.y);
     sendchar(254);sendchar(b_cir_center.x);sendchar(b_cir_center.y);
     }
		
    }
    seq++;
    seq=seq%(seqdiv+1);
     cvShowImage( "mywindow", frame); // show output image
//     cvShowImage( "bot", threshframebot);
//     cvShowImage( "top", threshframetop);
     //remove higher bits using AND operator
     if ( (cvWaitKey(10) & 255) == 27  ) break;
   }
   // Release the capture device housekeeping
   cvReleaseCapture( &capture );
   //v4l.flush();
   cvDestroyWindow( "mywindow" );
   
return 0;
 }
Beispiel #12
0
float thresholdSegmentation(Rect r, ntk::RGBDImage* current_frame, Mat& dst){
	Mat depth = current_frame->depth();
	Rect& rr = r;
	Mat depthROI = depth(rr), maskROI;
	Mat& rDepthROI = depthROI, &rMaskROI = maskROI;
	double var = 0.3;

	// maskROI for nonZero values in the Face Region
	inRange(depthROI, Scalar::all(0.001), Scalar::all(255), maskROI);
	// Mean depth of Face Region
	Scalar mFace = cv::mean(rDepthROI, rMaskROI);
	//mFace[0]  = mFace[0] - mFace[0] * var;
	inRange(depthROI, Scalar::all(0.001), mFace, maskROI);
	mFace = cv::mean(rDepthROI, rMaskROI);
	//inRange(depthROI, Scalar::all(0.001), mFace, maskROI);
	//mFace = cv::mean(rDepthROI, rMaskROI);
	


	
	// Mask for nearer than the mean of face.
	inRange(depth, Scalar::all(0.001), mFace, dst);
	Mat rgbImage = current_frame->rgb();
	Mat outFrame = cvCreateMat(rgbImage.rows, rgbImage.cols, CV_32FC3);
	rgbImage.copyTo(outFrame, dst);
	Mat outFrameROI;
	outFrameROI = outFrame(rr);
	//cvCopy(&rgbImage, &outFrame, &dst);
	//rgbImageROI = rgbImageROI(rr);
	
	imshow("ROI", outFrameROI);
	//imshow("thresholdSeg", dst);

	// For debug of cvblobslib
	// Display the color image	

	//imshow("faceRIO", maskROI);
	imshow("faceRIO", outFrameROI);
	bool iswrite;
	const int nchannel = 1;
	vector<Rect> faces;
	//iswrite = imwrite("faceROI.png", maskROI);
	iswrite = imwrite("faceROI.png", outFrameROI);
	//iswrite = cvSaveImage("faceROI.jpeg", pOutFrame, &nchannel);

	// ---- blob segmentation on maskROI by using cvblobslib ----
	// ---		Third Trial	---
	//visualizeBlobs("faceROI.png", "faceRIO");




	// ---		First Trial Not Successful		---
	//Mat maskROIThr=cvCreateMat(maskROI.rows, maskROI.cols, CV_8UC1);	
	//maskROIThr = maskROI;
	//IplImage imgMaskROIThr = maskROIThr;
	//IplImage* pImgMaskROIThr = &imgMaskROIThr;
	//cvThreshold(pImgMaskROIThr, pImgMaskROIThr, 0.1, 255, CV_THRESH_BINARY_INV);

	// ---		Second Trial	---
	IplImage* original = cvLoadImage("faceROI.png", 0);
	IplImage* originalThr = cvCreateImage(cvGetSize(original), IPL_DEPTH_8U, 1);
	IplImage* displayBiggestBlob = cvCreateImage(cvGetSize(original), IPL_DEPTH_8U, 3);
	CBlobResult blobs;
	CBlob biggestBlob;
	//IplImage source = maskROIThr;	IplImage* pSource = &source;
	//blobs = CBlobResult(
	cvThreshold(original, originalThr, 0.1, 255, CV_THRESH_BINARY_INV);
	blobs =  CBlobResult( originalThr, NULL, 255);
	printf("%d blobs \n", blobs.GetNumBlobs());
	blobs.GetNthBlob(CBlobGetArea(), 0, biggestBlob);
	biggestBlob.FillBlob(displayBiggestBlob, CV_RGB(255, 0, 0));

	// Drawing the eclipse and Rect on the blob
	Mat mat(displayBiggestBlob);

	cv::RotatedRect blobEllipseContour;
	cv::Rect blobRectContour;
	//RotatedRect blobEllipseContour;
	blobEllipseContour = biggestBlob.GetEllipse();
	blobRectContour = biggestBlob.GetBoundingBox();
	//cv::ellipse(
	cv::ellipse(mat, blobEllipseContour, cv::Scalar(0,255, 0), 3, CV_AA);
	cv::rectangle(mat, blobRectContour, cv::Scalar(255, 0, 0), 3, CV_AA);
	//cv::ellipse(mat, blobEllipseContour);
	float headOritation = blobEllipseContour.angle;
	if (headOritation <= 180)
		headOritation = headOritation - 90;
	else
		headOritation = headOritation - 270;
	cv::putText(mat,
			cv::format("%f degree", headOritation),
			Point(10,20), 0, 0.5, Scalar(255,0,0,255));

	cv::imshow("faceRIO", mat);
	return(headOritation);
}
Beispiel #13
0
/*
 * thread for displaying the opencv content
 */
void *cv_threadfunc (void *ptr) {
	IplImage* timg = cvCloneImage(rgbimg); // Image we do our processing on
	IplImage* dimg = cvCloneImage(rgbimg); // Image we draw on
	CvSize sz = cvSize( timg->width & -2, timg->height & -2);
	IplImage* outimg = cvCreateImage(sz, 8, 3);

	CvMemStorage* storage = cvCreateMemStorage(0);
	CvSeq* squares; // Sequence for squares - sets of 4 points
	CvSeq* contours; // Raw contours list
	CvSeq* result; // Single contour being processed

	CBlobResult blobs;
	CBlob *currentBlob;

	IplImage *pyr = cvCreateImage(cvSize(sz.width/2, sz.height/2), 8, 1);

	// Set region of interest
	cvSetImageROI(timg, cvRect(0, 0, sz.width, sz.height));
	cvSetImageROI(dimg, cvRect(0, 0, sz.width, sz.height));

	// Processing and contours
	while (1) {
		squares = cvCreateSeq(0, sizeof(CvSeq), sizeof(CvPoint), storage);

		pthread_mutex_lock( &mutex_rgb );
		cvCopy(rgbimg, dimg, 0);
		cvCopy(rgbimg, timg, 0);
		pthread_mutex_unlock( &mutex_rgb );

		// BLUR TEST
		// cvPyrDown(dimg, pyr, 7);
		// cvPyrUp(pyr, timg, 7);

		// DILATE TEST
		IplConvKernel* element = cvCreateStructuringElementEx(5, 5, 2, 2, 0);
		IplConvKernel* element2 = cvCreateStructuringElementEx(3, 3, 1, 1, 0);
		cvDilate(timg, timg, element, 2);
		cvErode(timg, timg, element2, 3);

		// THRESHOLD TEST 
		cvThreshold(timg, timg, 200, 255, CV_THRESH_BINARY);

		// Output processed or raw image.
		cvCvtColor(timg, outimg, CV_GRAY2BGR);

		// BLOB TEST
		blobs = CBlobResult( timg, (IplImage*)NULL, 0, true );
		// blobs.Filter( blobs, B_EXCLUDE, CBlobGetArea(), B_LESS, 50 );
		
		printf("Blobs: %d\n", blobs.GetNumBlobs());

		CBlob biggestBlob;
		blobs.GetNthBlob( CBlobGetArea(), 1, biggestBlob );
		biggestBlob.FillBlob( outimg, CV_RGB(255, 0, 0) );
		CvSeq* dest;
		biggestBlob.GetConvexHull(dest);
		
		// for (int i = 0; i < blobs.GetNumBlobs(); i++ )
		// {
		// 	currentBlob = blobs.GetBlob(i);
		// 	currentBlob->FillBlob( outimg, CV_RGB(255,0,0) );
		// }
		

//		// CONTOUR FINDING
//		cvFindContours(timg, storage, &contours, sizeof(CvContour), CV_RETR_LIST, CV_CHAIN_APPROX_SIMPLE, cvPoint(0,0));
//
//		while (contours)
//		{
//			// Approximate contour, accuracy proportional to perimeter of contour; may want to tune accuracy.
//			result = cvApproxPoly(contours, sizeof(CvContour), storage, CV_POLY_APPROX_DP, cvContourPerimeter(contours) * 0.02, 0);
//			// Filter small contours and contours w/o 4 vertices (filters noise, finds rectangles)
//			if (result->total == 4 && 
//				fabs(cvContourArea(result, CV_WHOLE_SEQ)) > 600 && 
//				cvCheckContourConvexity(result))
//			{
//				// Skipped checking whether angles were close to 90 degrees here; may want to implement.
//				// Probably also want to check if it's square enough to filter out ex. long windows.
//
//				for (int i = 0; i < 4; i++)
//				{
//					// Write vertices to output sequence
//					cvSeqPush(squares, (CvPoint*)cvGetSeqElem(result, i));
//				}
//			}
//
//			// Take next contour
//			contours = contours->h_next;
//		}
//
//
//		// DRAW RECTANGLES
//		CvSeqReader reader;
//		cvStartReadSeq(squares, &reader, 0);
//
//		// Read 4 points at a time
//		CvPoint pt[4];
//		CvPoint *rect = pt;
//		CvRect out[4];
//		CvRect *outrect = out;
//		for (int i = 0; i < squares->total; i += 4)
//		{
//			int count = 4;
//			
//			// Which point is which corner is unpredictable.
//			CV_READ_SEQ_ELEM(pt[0], reader); 
//			CV_READ_SEQ_ELEM(pt[1], reader);
//			CV_READ_SEQ_ELEM(pt[2], reader);
//			CV_READ_SEQ_ELEM(pt[3], reader);
//			// Draw rectangle on output
//			cvPolyLine(outimg, &rect, &count, 1, 1, CV_RGB(0,255,0), 1, CV_AA, 0);
//			// Make rectangles
//			// Print (temporary)
//			printf("Rect[0]: %d, %d\n", pt[0].x, pt[0].y);
//			printf("Rect[1]: %d, %d\n", pt[1].x, pt[1].y);
//			printf("Rect[2]: %d, %d\n", pt[2].x, pt[2].y);
//			printf("Rect[3]: %d, %d\n\n", pt[3].x, pt[3].y);
//			fflush(stdout);
//
//		}
//
		// Print on order
		if( cvWaitKey( 15 )==27 )
		{
				}

		cvShowImage (FREENECTOPENCV_WINDOW_N,outimg);
		cvClearMemStorage(storage);
	}
	pthread_exit(NULL);
}
Beispiel #14
0
 int main() {
  CvPoint pt1,pt2;
  CvRect regt;
   CvCapture* capture = cvCaptureFromCAM( CV_CAP_ANY );
   if ( !capture ) {
     fprintf(stderr, "ERROR: capture is NULL \n" );
     getchar();
     return -1;
   }
  cvSetCaptureProperty(capture,CV_CAP_PROP_FRAME_HEIGHT,144);
  cvSetCaptureProperty(capture,CV_CAP_PROP_FRAME_WIDTH,216);	 
  // Create a window in which the captured images will be presented
   cvNamedWindow( "mywindow", CV_WINDOW_AUTOSIZE );
   // Show the image captured from the camera in the window and repeat
   while ( 1 ) {
     // Get one frame
     IplImage* frame = cvQueryFrame( capture );
     if ( !frame ) {
       fprintf( stderr, "ERROR: frame is null...\n" );
       getchar();
       break;
     }
     int modfheight, modfwidth;

     modfheight = frame->height;
     modfwidth = frame->width;
     // create modified frame with 1/4th the original size
     IplImage* modframe = cvCreateImage(cvSize((int)(modfwidth/4),(int)(modfheight/4)),frame->depth,frame->nChannels); //cvCreateImage(size of frame, depth, noofchannels)
     cvResize(frame, modframe,CV_INTER_LINEAR);
     // create HSV(Hue, Saturation, Value) frame
     IplImage* hsvframe = cvCreateImage(cvGetSize(modframe),8, 3);
     cvCvtColor(modframe, hsvframe, CV_BGR2HSV); //cvCvtColor(input frame,outputframe,method)
     // create a frame within threshold. 
     IplImage* threshframe = cvCreateImage(cvGetSize(hsvframe),8,1);
     cvInRangeS(hsvframe,cvScalar(30, 25, 150),cvScalar(60, 60, 220),threshframe); //cvInRangeS(input frame, cvScalar(min range),cvScalar(max range),output frame)
     // created dilated image
     IplImage* dilframe = cvCreateImage(cvGetSize(threshframe),8,1);
     cvDilate(threshframe,dilframe,NULL,2); //cvDilate(input frame, output frame, mask, number of times to dilate)

     CBlobResult blobs; 
     blobs = CBlobResult(dilframe,NULL,0); // CBlobresult(inputframe, mask, threshold) Will filter all white parts of image
     blobs.Filter(blobs,B_EXCLUDE,CBlobGetArea(),B_LESS,50);//blobs.Filter(input, cond, criteria, cond, const) Filter all images whose area is less than 50 pixels
     CBlob biggestblob;
     blobs.GetNthBlob(CBlobGetArea(),0,biggestblob); //GetNthBlob(criteria, number, output) Get only  the largest blob based on CblobGetArea()
     // get 4 points to define the rectangle
     pt1.x = biggestblob.MinX()*4;
     pt1.y = biggestblob.MinY()*4;
     pt2.x = biggestblob.MaxX()*4;
     pt2.y = biggestblob.MaxY()*4;
     cvRectangle(frame,pt1,pt2,cvScalar(255,0,0),1,8,0); // draw rectangle around the biggest blob

     cvShowImage( "mywindow", frame); // show output image
     // Do not release the frame!
     //If ESC key pressed, Key=0x10001B under OpenCV 0.9.7(linux version),
     //remove higher bits using AND operator
     if ( (cvWaitKey(10) & 255) == 27 ) break;
   }
   // Release the capture device housekeeping
   cvReleaseCapture( &capture );
   cvDestroyWindow( "mywindow" );
   return 0;
 }
Beispiel #15
0
 int main()  
 {  
     CBlobResult blobs;    
     CBlob *currentBlob;   
     CvPoint pt1, pt2;  
     CvRect cvRect;  
     int key = 0;  
     IplImage* frame = 0;  
   
     // Initialize capturing live feed from video file or camera  
     CvCapture* capture = cvCaptureFromFile( "MOV.MPG" );  
   
     // Get the frames per second  
     int fps = ( int )cvGetCaptureProperty( capture,  
                                            CV_CAP_PROP_FPS );    
   
     // Can't get device? Complain and quit  
     if( !capture )  
     {  
         printf( "Could not initialize capturing...\n" );  
         return -1;  
     }  
   
     // Windows used to display input video with bounding rectangles  
     // and the thresholded video  
     cvNamedWindow( "video" );  
     cvNamedWindow( "thresh" );        
   
     // An infinite loop  
     while( key != 'x' ) 
     { 
         // If we couldn't grab a frame... quit  
         if( !( frame = cvQueryFrame( capture ) ) )  
             break;        
   
         // Get object's thresholded image (blue = white, rest = black)  
         IplImage* imgThresh = GetThresholdedImageHSV( frame );        
   
         // Detect the white blobs from the black background  
         blobs = CBlobResult( imgThresh, NULL, 0 );    
   
         // Exclude white blobs smaller than the given value (10)    
         // The bigger the last parameter, the bigger the blobs need    
         // to be for inclusion    
         blobs.Filter( blobs,  
                       B_EXCLUDE,  
                       CBlobGetArea(),  
                       B_LESS,  
                       10 );           
   
         // Attach a bounding rectangle for each blob discovered  
         int num_blobs = blobs.GetNumBlobs();  
   
         for ( int i = 0; i < num_blobs; i++ )    
         {                 
             currentBlob = blobs.GetBlob( i );               
             cvRect = currentBlob->GetBoundingBox();  
   
             pt1.x = cvRect.x;  
             pt1.y = cvRect.y;  
             pt2.x = cvRect.x + cvRect.width;  
             pt2.y = cvRect.y + cvRect.height;  
   
             // Attach bounding rect to blob in orginal video input  
             cvRectangle( frame,  
                          pt1,   
                          pt2,  
                          cvScalar(0, 0, 0, 0),  
                          1,  
                          8,  
                          0 );  
         }  
   
         // Add the black and white and original images  
         cvShowImage( "thresh", imgThresh );  
         cvShowImage( "video", frame );  
   
         // Optional - used to slow up the display of frames  
         key = cvWaitKey( 2000 / fps );  
   
         // Prevent memory leaks by releasing thresholded image  
         cvReleaseImage( &imgThresh );        
     }  
   
     // We're through with using camera.   
     cvReleaseCapture( &capture );  
   
     return 0;  
 }  
Beispiel #16
0
// A Simple Camera Capture Framework
int main() {

	CvCapture* capture = cvCaptureFromCAM( 0 );
	if( !capture ) {
		fprintf( stderr, "ERROR: capture is NULL \n" );
		return -1;
	}

	#ifdef HALF_SIZE_CAPTURE
	cvSetCaptureProperty(capture, CV_CAP_PROP_FRAME_WIDTH, 352/2);
	cvSetCaptureProperty(capture, CV_CAP_PROP_FRAME_HEIGHT, 288/2);
	#endif

	// Create a window in which the captured images will be presented
	cvNamedWindow( "Source Image Window", CV_WINDOW_AUTOSIZE );
	cvNamedWindow( "Back Projected Image", CV_WINDOW_AUTOSIZE );
	cvNamedWindow( "Brightness and Contrast Window", CV_WINDOW_AUTOSIZE );
	cvNamedWindow( "Blob Output Window", CV_WINDOW_AUTOSIZE );
	cvNamedWindow( "Histogram Window", 0);

	cvNamedWindow( "Rainbow Window", CV_WINDOW_AUTOSIZE );

	// Capture one frame to get image attributes:
	source_frame = cvQueryFrame( capture );
	if( !source_frame ) {
		fprintf( stderr, "ERROR: frame is null...\n" );
		return -1;
	}

	cvCreateTrackbar("histogram\nnormalization", "Back Projected Image", &normalization_sum, 6000, NULL);
	cvCreateTrackbar("brightness", "Brightness and Contrast Window", &_brightness, 200, NULL);
	cvCreateTrackbar("contrast", "Brightness and Contrast Window", &_contrast, 200, NULL);
	cvCreateTrackbar("threshold", "Blob Output Window", &blob_extraction_threshold, 255, NULL);
	cvCreateTrackbar("min blob size", "Blob Output Window", &min_blob_size, 2000, NULL);
	cvCreateTrackbar("max blob size", "Blob Output Window", &max_blob_size, source_frame->width*source_frame->height/4, NULL);



	inputImage = cvCreateImage(cvGetSize(source_frame), IPL_DEPTH_8U, 1);
	histAdjustedImage = cvCreateImage(cvGetSize(source_frame), IPL_DEPTH_8U, 1);
	outputImage = cvCreateImage(cvGetSize(source_frame), IPL_DEPTH_8U, 3 );
	hist_image = cvCreateImage(cvSize(320,200), 8, 1);

	rainbowImage = cvCreateImage(cvGetSize(source_frame), IPL_DEPTH_8U, 3 );


	// object that will contain blobs of inputImage 
	CBlobResult blobs;
	CBlob my_enumerated_blob;

	cvInitFont(&font, CV_FONT_HERSHEY_SIMPLEX|CV_FONT_ITALIC, hScale, vScale, 0, lineWidth);





	// Some brightness/contrast stuff:
	bright_cont_image = cvCloneImage(inputImage);
	lut_mat = cvCreateMatHeader( 1, 256, CV_8UC1 );
	cvSetData( lut_mat, lut, 0 );




	while( 1 ) {

		// Get one frame
		source_frame = cvQueryFrame( capture );
		if( !source_frame ) {
			fprintf( stderr, "ERROR: frame is null...\n" );
			getchar();
			break;
		}
		cvShowImage( "Source Image Window", source_frame );
		// Do not release the frame!

		cvCvtColor(source_frame, inputImage, CV_RGB2GRAY);

		// Histogram Stuff!
		my_hist = cvCreateHist(1, hist_size_array, CV_HIST_ARRAY, ranges, 1);
		cvCalcHist( &inputImage, my_hist, 0, NULL );
		cvNormalizeHist(my_hist, normalization_sum);

		// NOTE: First argument MUST have an ampersand, or a segmentation fault will result
		cvCalcBackProject(&inputImage, histAdjustedImage, my_hist);



		// Histogram Picture
		int bin_w;
		float max_value = 0;
		cvGetMinMaxHistValue( my_hist, 0, &max_value, 0, 0 );
		cvScale( my_hist->bins, my_hist->bins, ((double)hist_image->height)/max_value, 0 );
		cvSet( hist_image, cvScalarAll(255), 0 );
		bin_w = cvRound((double)hist_image->width/hist_size);

		for(int i = 0; i < hist_size; i++ )
			cvRectangle( hist_image, cvPoint(i*bin_w, hist_image->height), cvPoint((i+1)*bin_w, hist_image->height - cvRound(cvGetReal1D(my_hist->bins,i))), cvScalarAll(0), -1, 8, 0 );
		cvShowImage( "Histogram Window", hist_image );
		cvShowImage("Back Projected Image", histAdjustedImage);






		// Brightness/contrast loop stuff:
		int brightness = _brightness - 100;
		int contrast = _contrast - 100;

		/*
		 * The algorithm is by Werner D. Streidt
		 * (http://visca.com/ffactory/archives/5-99/msg00021.html)
		 */
		if( contrast > 0 ) {
			double delta = 127.*contrast/100;
			double a = 255./(255. - delta*2);
			double b = a*(brightness - delta);
			for(int i = 0; i < 256; i++ )
			{
				int v = cvRound(a*i + b);
				if( v < 0 ) v = 0;
				if( v > 255 ) v = 255;
				lut[i] = (uchar)v;
			}
		}
		else {
			double delta = -128.*contrast/100;
			double a = (256.-delta*2)/255.;
			double b = a*brightness + delta;
			for(int i = 0; i < 256; i++ ) {
				int v = cvRound(a*i + b);
				if( v < 0 )
					v = 0;
				if( v > 255 )
					v = 255;
				lut[i] = (uchar)v;
			}
		}

		cvLUT( inputImage, bright_cont_image, lut_mat );
		cvShowImage( "Brightness and Contrast Window", bright_cont_image);







		// ---------------
		// Blob Manipulation Code begins here:

		// Extract the blobs using a threshold of 100 in the image
		blobs = CBlobResult( bright_cont_image, NULL, blob_extraction_threshold, true );

		// discard the blobs with less area than 5000 pixels
		// ( the criteria to filter can be any class derived from COperadorBlob ) 
		blobs.Filter( blobs, B_INCLUDE, CBlobGetArea(), B_GREATER_OR_EQUAL, min_blob_size);
		blobs.Filter( blobs, B_EXCLUDE, CBlobGetArea(), B_GREATER, max_blob_size);

		// build an output image equal to the input but with 3 channels (to draw the coloured blobs)
		cvMerge( bright_cont_image, bright_cont_image, bright_cont_image, NULL, outputImage );

		// plot the selected blobs in a output image
		for (int i=0; i < blobs.GetNumBlobs(); i++) {
			blobs.GetNthBlob( CBlobGetArea(), i, my_enumerated_blob );
			// Color 5/6 of the color wheel (300 degrees)
			my_enumerated_blob.FillBlob( outputImage, cv_hsv2rgb((float)i/blobs.GetNumBlobs() * 300, 1, 1));
		}
		// END Blob Manipulation Code
		// ---------------


		sprintf(str, "Count: %d", blobs.GetNumBlobs());
		cvPutText(outputImage, str, cvPoint(50, 25), &font, cvScalar(255,0,255));
		
		cvShowImage("Blob Output Window", outputImage);






/*
		// Rainbow manipulation:
		for (int i=0; i < CV_CAP_PROP_FRAME_WIDTH; i++) {
			for (int j=0; j < CV_CAP_PROP_FRAME_HEIGHT; j++) {
// This line is not figure out yet...
//				pixel_color_set = ((uchar*)(rainbowImage->imageData + rainbowImage->widthStep * j))[i * 3]

				((uchar*)(rainbowImage->imageData + rainbowImage->widthStep * j))[i * 3] = 30;
				((uchar*)(rainbowImage->imageData + rainbowImage->widthStep * j))[i * 3 + 1] = 30;
				((uchar*)(rainbowImage->imageData + rainbowImage->widthStep * j))[i * 3 + 2] = 30;
			}
		}
		cvShowImage("Rainbow Window", rainbowImage);
*/







		//If ESC key pressed, Key=0x10001B under OpenCV 0.9.7(linux version),
		//remove higher bits using AND operator
		if( (cvWaitKey(10) & 255) == 27 ) break;

	}

	cvReleaseImage(&inputImage);
	cvReleaseImage(&histAdjustedImage);
	cvReleaseImage(&hist_image);
	cvReleaseImage(&bright_cont_image);
	cvReleaseImage(&outputImage);
	cvReleaseImage(&rainbowImage);

	// Release the capture device housekeeping
	cvReleaseCapture( &capture );
	cvDestroyAllWindows();

	return 0;
}
SHModel* ShapeModel( CvCapture* g_capture,StaticBGModel* BGModel , BGModelParams* BGParams){

	int num_frames = 0;
	int total_blobs=0;
	float Sumatorio = 0;
	float SumatorioDes = 0;
	IplImage* frame = NULL;

	STFrame* frameData = NULL;
	SHModel* Shape = NULL;

	CBlobResult blobs;
	CBlob *currentBlob;

	IplImage* ImGris = cvCreateImage(cvGetSize( BGModel->Imed ), 8, 1 );
	IplImage* Imblob = cvCreateImage(cvGetSize( BGModel->Imed ), 8, 3 );
	IplImage* lastBG = cvCreateImage( cvGetSize( BGModel->Imed ),8, 1 );
	IplImage* lastIdes = cvCreateImage( cvGetSize( BGModel->Imed ), IPL_DEPTH_32F, 1);
	cvZero(Imblob);
	// Iniciar estructura para modelo de forma

	Shape = ( SHModel *) malloc( sizeof( SHModel));
	if ( !Shape ) {error(4);return 0;}
	Shape->FlyAreaDes = 0;
	Shape->FlyAreaMedia=0;
	//Pone a 0 los valores del vector areas


	//EXTRACCION DE LOS BLOBS Y CALCULO DE MEDIANA/MEDIA Y DESVIACION TIPICA PARA TODOS LOS FRAMES
	cvSetCaptureProperty( g_capture,1,BGParams->initDelay ); // establecemos la posición
	while( num_frames < ShParams->FramesTraining ){
		frame = cvQueryFrame( g_capture );
		if ( !frame ) {
			error(2);
			break;
		}
		if ( (cvWaitKey(10) & 255) == 27 ) break;

		ImPreProcess( frame, ImGris, BGModel->ImFMask, 0, BGModel->DataFROI);

		// Cargamos datos del fondo
		if(!frameData ) { //en la primera iteración iniciamos el modelo dinamico al estático
			// Iniciar estructura para datos del nuevo frame
			frameData = InitNewFrameData( frame );
			cvCopy(  BGModel->Imed,frameData->BGModel);
			cvSet(frameData->IDesvf, cvScalar(1));
			cvCopy(  BGModel->Imed,lastBG);
		}
		else{	// cargamos los últimos parámetros del fondo.
			cvCopy( lastBG, frameData->BGModel);
			cvCopy( lastIdes,frameData->IDesvf );
		}
	//	obtener la mascara del FG y la lista con los datos de sus blobs.
		//// BACKGROUND UPDATE
		// Actualización del fondo
		// establecer parametros

		UpdateBGModel( ImGris,frameData->BGModel,frameData->IDesvf, BGParams, BGModel->DataFROI, BGModel->ImFMask );
		/////// BACKGROUND DIFERENCE. Obtención de la máscara del foreground
		BackgroundDifference( ImGris, frameData->BGModel,frameData->IDesvf, frameData->FG ,BGParams, BGModel->DataFROI);

		// guardamos las imagenes para iniciar el siguiente frame
		cvCopy( frameData->BGModel, lastBG);
		cvCopy(  frameData->IDesvf,lastIdes);

		//Obtener los Blobs y excluir aquellos que no interesan por su tamaño
//		cvSetImageROI(  frameData->FG , BGModel->DataFROI);

		blobs = CBlobResult( frameData->FG, NULL, 100, true );
		blobs.Filter( blobs, B_EXCLUDE, CBlobGetArea(),B_GREATER,100);
		blobs.Filter( blobs, B_EXCLUDE, CBlobGetPerimeter(),B_GREATER,1000);

		int j = blobs.GetNumBlobs();//numero de blos encontrados en el frame

		total_blobs=total_blobs+j; // Contabiliza los blobs encontrados para todos los frames

		//Recorrer Blob a blob y obtener las caracteristicas del AREA de cada uno de ellos

		for (int i = 0; i < blobs.GetNumBlobs(); i++ ){ //for 1

			currentBlob = blobs.GetBlob(i);

			CBlobGetArea();
			if(ShParams->SHOW_DATA_AREAS) {
				//printf("Area blob %d = %f ",i,currentBlob->area);
			}
			//Estimar la media de las Areas

			Sumatorio = Sumatorio + currentBlob->area;
			SumatorioDes = SumatorioDes + currentBlob->area*currentBlob->area;

			muestrearAreas( currentBlob->area);
			currentBlob->FillBlob( Imblob, CV_RGB(255,0,0));

		}//Fin del For 1

		Shape->FlyAreaMedia = Sumatorio / total_blobs;
		Shape->FlyAreaDes = (SumatorioDes / total_blobs) - Shape->FlyAreaMedia*Shape->FlyAreaMedia;

		num_frames += 1;
//		cvResetImageROI(frameData->FG);
		DraWWindow(Imblob, frameData, BGModel, SHOW_SHAPE_MODELING, COMPLETO);
		DraWWindow(Imblob, frameData, BGModel, SHAPE,SIMPLE );

	}
	desvanecer( NULL, 20);
	Shape->FlyAreaDes = sqrt(abs(Shape->FlyAreaDes) ) ;
	if( Shape->FlyAreaDes == 0){
		printf("hola");
	}

	//Mostrar mediana y media para todos los frames

	if(ShParams->SHOW_DATA_AREAS )
		printf("\n MEDIA AREAS: %f \t DESVIACION AREAS: %f",Shape->FlyAreaMedia,Shape->FlyAreaDes);

	free( ShParams);
	liberarSTFrame( frameData );
	cvReleaseImage( &ImGris);
	cvReleaseImage( &Imblob);
	cvReleaseImage( &lastIdes);
	cvReleaseImage( &lastBG);

	return Shape;

}//Fin de la función ShapeModel2
void
Auvsi_Recognize::extractLetter( void )
{
	typedef cv::Vec<unsigned char, 1> VT_binary;
	#ifdef TWO_CHANNEL
		typedef cv::Vec<T, 2> VT;
	#else
		typedef cv::Vec<T, 3> VT;
	#endif
	typedef cv::Vec<int, 1> IT;
	

	
	
	
	
	// Erode input slightly
	cv::Mat input;
	cv::erode( _shape, input, cv::Mat() );

	// Remove any small white blobs left over
	CBlobResult blobs;
	CBlob * currentBlob;
	CBlob biggestBlob;
	IplImage binaryIpl = input;

	blobs = CBlobResult( &binaryIpl, NULL, 0 );
	blobs.GetNthBlob( CBlobGetArea(), 0, biggestBlob );

	blobs.Filter( blobs, B_EXCLUDE, CBlobGetArea(), B_GREATER_OR_EQUAL, biggestBlob.Area() );

	for (int i = 0; i < blobs.GetNumBlobs(); i++ )
	{
    	currentBlob = blobs.GetBlob(i);
		currentBlob->FillBlob( &binaryIpl, cvScalar(0));
	}

	// Perform k-means on this region only
	int areaLetter = (int)biggestBlob.Area();
	cv::Mat kMeansInput = cv::Mat( areaLetter, 1, _image.type() );

	// Discard if we couldn't extract a letter
	if( areaLetter <= 0 )
	{
		_letter = cv::Mat( _shape );
		_letter = cv::Scalar(0);
		return;
	}

	cv::MatIterator_<VT_binary> binaryIterator = input.begin<VT_binary>();
	cv::MatIterator_<VT_binary> binaryEnd = input.end<VT_binary>();
	cv::MatIterator_<VT> kMeansIterator = kMeansInput.begin<VT>();

	for( ; binaryIterator != binaryEnd; ++binaryIterator )
	{
		if( (*binaryIterator)[0] > 0 )
		{
			(*kMeansIterator) = _image.at<VT>( binaryIterator.pos() );
			++kMeansIterator;
		}
	}

	// Get k-means labels
	cv::Mat labels = doClustering<T>( kMeansInput, 2, false );	
	int numZeros = areaLetter - cv::countNonZero( labels );
	bool useZeros = numZeros < cv::countNonZero( labels );

	// Reshape into original form
	_letter = cv::Mat( _shape.size(), _shape.type() );
	_letter = cv::Scalar(0);

	binaryIterator = input.begin<VT_binary>();
	binaryEnd = input.end<VT_binary>();
	cv::MatIterator_<IT> labelsIterator = labels.begin<IT>();

	for( int index = 0; binaryIterator != binaryEnd; ++binaryIterator )
	{
		if( (*binaryIterator)[0] > 0 )
		{
			// Whichever label was the minority, we make that value white and all other values black
			unsigned char value = (*labelsIterator)[0];

			if( useZeros )
				if( value )
					value = 0;
				else
					value = 255;
			else
				if( value )
					value = 255;
				else
					value = 0;

			_letter.at<VT_binary>( binaryIterator.pos() ) = VT_binary( value );
			++labelsIterator;
		}
	}
}
void blobbing( IplImage *hi, char * win1, char * win2, int check )	{
 	cvCvtColor(hi,hi2,CV_BGR2HSV);
	uchar *itemp=(uchar *)(hi2->imageData);
	uchar *itemp1=(uchar *)(hitemp->imageData);
	
	//	 binary conversion 
	for(int i=0;i<hi2->height;i++){
			for(int j=0;j<hi2->width;j++){

					if((itemp[i*hi2->widthStep+j*hi2->nChannels] <hh)	       
					&&
					(itemp[i*hi2->widthStep+j*hi2->nChannels]>hl)
				    &&
					(itemp[i*hi2->widthStep+j*hi2->nChannels+1]<sh)
					&&
					(itemp[i*hi2->widthStep+j*hi2->nChannels+1]>sl)
					
					&& 
					( itemp[i*hi2->widthStep+j*hi2->nChannels+2]<vh)			
					 &&
					( itemp[i*hi2->widthStep+j*hi2->nChannels+2]>vl)		//previous 124
					)
					
					
					{
						itemp1[i*hitemp->widthStep+j]=0;					//dark regions black rest white
						}
					else
						itemp1[i*hitemp->widthStep+j]=255;

		  
			}}
	 
	cvErode( hitemp, hitemp1, NULL, 3);
	cvDilate(hitemp1, hitemp1, NULL, 3);

	hitemp=hitemp1;
	CBlobResult  blob;				
	CBlob *currentBlob=NULL;
	blob=CBlobResult(hitemp1,NULL,255);
	blob.Filter(blob,B_EXCLUDE,CBlobGetArea(),B_LESS,500);
	cvMerge(hitemp1,hitemp1,hitemp1,NULL,out);
 
	CBlob hand1,hand2;																//two blobs,one for each hand
	blob.GetNthBlob( CBlobGetArea(), 0, (hand2));	
	blob.GetNthBlob( CBlobGetArea(), 1, (hand1 ));
	hand1.FillBlob(out,CV_RGB(0,0,255));											//fill the color of blob of hand one with blue
	hand2.FillBlob(out,CV_RGB(0,255,0));											//fill the color of blob of hand two with green 
	coordinates (out,check);														//to find the coordinates of the hands we pass the image onto the function coordinates
	int greater1,greater2,lesser1,lesser2;
	if(x>X)		{
		greater1=x,greater2=y;
		lesser1=X,lesser2=Y;
	}
	else		{
		greater1=X,greater2=Y;
	    lesser1=x,lesser2=y;
	}
 	
	/*cvCircle (  hi, cvPoint(greater1,greater2), 10,
					cvScalar(0,0,255), -1, 8		   );
	cvCircle (  hi, cvPoint(lesser1,lesser2), 10,
					cvScalar(0,255,255), -1, 8		);
					*/
	cvResizeWindow(win2,280,280);
	cvMoveWindow(win2,0,0);
	cvShowImage(win2,out);
	return ; 
}