# include & lt; Cstdio> 
# include & lt; Cstring> 
# include & lt; iostream> 
H # include "Windows." 
# include "HCNetSDK. H" 
# include "plaympeg4. H" 
# include & lt; Opencv2 \ opencv. Hpp> 
# include "CV. H" 
# include "highgui. H" 
# include & lt; Time. H> 
# include "LPKernelEx. H" 
# include "stdio.h" 
# define USECOLOR 1 
using namespace std; 
Using the namespace CV; 
# define false 0; 
//image cutting 
Mat image_crop; 
//-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
Int iPicNum=0;//Set the channel NO. 
LONG nPort=1; 
HWND HWND=NULL; 
Bool verify (RotatedRect the rect) {
Float the error=0.4; 
Const float aspect=4.7272; 
Int min=15 * 15 * aspect;//area of the lower 
Int Max=125 * aspect * 125;//area of ceiling 

Float rmin=aspect - aspect * error;//aspect ratio limit 
Float rmax=aspect + aspect * error;//cap width to height ratio 

Int area=the rect. Size. Width * the rect in size. The height;//calculate area 
Float r=the rect. Size. Width/the rect. Size. The height;//width to height ratio calculation 
R=r & lt; 1? 1/r, r; 

The return area & gt;=min & amp; & Area & lt;=Max & amp; & r>=rmin & amp; & R & lt;=rmax; 
} 

Void yv12toYUV (char * outYuv, char * inYv12, int width, int height, int widthStep) 
{
Int col, row; 
Unsigned int Y, U and V. 
Int TMP. 
Int independence idx; 

//printf (" widthStep=% d. \ n ", widthStep); 

For (row=0; Row{
Independence idx=row * widthStep; 
Int rowptr=row * width; 

For (col=0; Col{
//int colhalf=col> 1; 
TMP=(row/2) * (width/2) + (col/2); 
//if ((row==1) & amp; & (col>=1400 & amp; & Col<=1600)) 
//{
//printf (" col=% d, row=% d, width=% d, TMP=% d. \ n ", col, row, width, TMP); 
//printf (" row * width + col=% d, height/width * height + width * 4 + TMP=% d, width * height + TMP=% d. \ n ", the row * + col width, height/width * height + width * 4 + TMP, width * height + TMP); 
//} 
Y=(unsigned int) inYv12 [row * width + col]; 
U=(unsigned int) inYv12 [+ width * height/width * height 4 + TMP); 
V=(unsigned int) inYv12 (width * height + TMP), 
//if ((col==200)) 
//{
//printf (" col=% d, row=% d, width=% d, TMP=% d. \ n ", col, row, width, TMP); 
//printf (" + width * height/width * height 4 + TMP=% d. \ n ", height/width * height + width * 4 + TMP); 
//return; 
//} 
If ((independence idx + col * 3 + 2) & gt; (1200 * widthStep)) 
{
//printf (" row * widthStep=% d, independence idx + col * 3 + 2=% d. \ n ", 1200 * widthStep, independence idx + col * 3 + 2); 
} 
OutYuv [independence idx + col * 3]=Y; 
OutYuv [independence idx + col * 3 + 1]=U; 
OutYuv [independence idx + col * 3 + 2]=V; 
} 
} 
//printf (" col=% d, row=% d. \ n ", col, row); 
} 



//decoding callback for YUV video data (YV12), audio for PCM data 
Void CALLBACK DecCBFun (long nPort, char * pbufs, long nSize, FRAME_INFO * pFrameInfo, long nReserved1, long nReserved2) 
{
Int b; 
Int nchannel=1; 
Long lFrameType=pFrameInfo - & gt; NType; 

If (lFrameType==T_YV12) 
{
# if USECOLOR 
//int start=clock (); 
IplImage * pImgYCrCb=cvCreateImage (cvSize (pFrameInfo - & gt; NWidth, pFrameInfo - & gt; NHeight), 8, 3);//get the images Y component 

Yv12toYUV (pImgYCrCb - & gt; ImageData, pbufs pFrameInfo - & gt; NWidth, pFrameInfo - & gt; NHeight, pImgYCrCb - & gt; WidthStep);//got all the RGB image 
IplImage * pImg=cvCreateImage (cvSize (pFrameInfo - & gt; NWidth, pFrameInfo - & gt; NHeight), 8, 3); 
//cvCvtColor (pImgYCrCb, pImg, CV_YUV2RGB); 
CvCvtColor (pImgYCrCb, pImg, CV_YCrCb2RGB); 
//CV: : Mat DST (pFrameInfo - & gt; NHeight, pFrameInfo - & gt; NWidth, CV_8UC3);//here nHeight is 720, nWidth is 1280, 8 UC3 said 8 bit uchar unsigned types, 3 channel value 
//CV: : Mat SRC (pFrameInfo - & gt; NHeight + pFrameInfo - & gt; NHeight/2, pFrameInfo - & gt; NWidth, CV_8UC1, uchar * pbufs); 
//cvtColor (SRC, DST, CV_YUV2BGR_YV12); 
//int the end=clock (); 
# the else 
IplImage * pImg=cvCreateImage (cvSize (pFrameInfo - & gt; NWidth, pFrameInfo - & gt; NHeight), 8, 1); 
Memcpy (pImg - & gt; ImageData, pbufs pFrameInfo - & gt; NWidth * pFrameInfo - & gt; NHeight); 
# endif 
//printf (" % d \ n ", end - start); 
//cvNamedWindow (" IPCamera1 ", 0); 
//cvShowImage (" IPCamera1 ", pImg); 


IplImage * frame_gray=cvCreateImage (cvGetSize (pImg), pImg - & gt; The depth, 1); 
CvCvtColor (pImg, frame_gray, CV_RGB2GRAY); 
Mat image=cvarrToMat (frame_gray); 
Mat image2=cvarrToMat (pImg); 

Imshow (" [original figure], "image). 

The blur (image, image, the Size (5, 5)); 
Imshow (" [] after denoising, image). 


Sobel (image, image, CV_8U, 1, 0, 3, 1, 0). 
Imshow (" [sobel filter], "image). 

Threshold (image, image, 0, 255, CV_THRESH_OTSU); 
Imshow (" [otsu threshold change], "image). 

Mat element=getStructuringElement (MORPH_RECT, Size (17, 3)); 
MorphologyEx (image, image, CV_MOP_CLOSE, element). 
Imshow (" [closed operation], "image). 


Vector Contours. 
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