Shulou(Shulou.com)06/02 Report--

This article is about how OpenCV can achieve intelligent video surveillance. Xiaobian thinks it is quite practical, so share it with everyone for reference. Let's follow Xiaobian and have a look.

It was troublesome to find a complete implementation code on the Internet when I was doing the design before. After I finished it, I would like to share it with you

Because the code is relatively simple, there is no separate code written in different files, there is a need to integrate their own ha

Working with environments Visual Studio 2010 and OpenCV 2.4.9

#include #include #include using namespace std;using namespace cv; int videoplay();void on_Trackbar (int ,void*);char* str_gettime();int bSums(Mat src); char g_str[17];int g_nNum = 0;//Image name int g_nDelay = 0;int g_npic = 0;Mat g_filpdstMat;int g_pointnum = 1000;//Set pixel threshold to generate image int g_pixel = 0;//Pixels int main(){ VideoCapture (0); //Video output VideoWriter CvVideoWriter* outavi = NULL; //VideoWriter outavi; //outavi.open ("sre.avi",-1, 5. 0, Size(640, 480), true); outavi = cvCreateVideoWriter("Video.avi", -1, 5.0, cvSize(640, 480), 1); namedWindow("Camera",WINDOW_AUTOSIZE); namedWindow("Move Trajectory," WINDOW_AUTOSIZE); IplImage * cpframe = NULL; Mat tempframe, currentframe, preframe, cpframe; Mat frame,jpg; int framenum = 0; //Read a frame while (1) { if(! capture.isOpened()) { cout frame;//read camera and pass each frame to frame.copyTo(cpframe);//assign frame to cpframe without affecting frame tempframe = frame;//assign frame to tempframe without affecting frame flip (tempframe,g_filpdstMat,1);//Flip the image horizontally pcpframe = &IplImage(cpframe);//To free the window, convert Mat to IplImage using//cpframe=cvarrToMat (pcpframe); //ipl conversion matrix pBinary = &IplImage(Img) //7 frames capture once input video, frequent capture does not work if (framenum % 7 == 0) { //Video Write cvWriteFrame (outtavi, pcpframe); } //Determine the number of frames. If it is the first frame, use this frame as the comparison frame.//If it is greater than or equal to the second frame, perform frame difference processing framenum++; if (framenum == 1) { cvtColor (g_filpdstMat, preframe, CV_BGR2GRAY); } if (framenum >= 2) { cvtColor (g_filpdstMat, currentframe, CV_BGR2GRAY); //grayscale absdiff (currentframe,preframe,currentframe);//frame difference threshold (currentframe, currentframe, 30, 255.0, CV_THRESH_BINARY);(currentframe, currentframe,Mat());//corrosion dilute (currentframe, currentframe,Mat());//expand g_pixel = bSums(currentframe);//call bSums function to calculate white pixel and assign it to g_pixel //output the current pixel value after a small delay to prevent the data from being too fast to see g_nDelay++; if(g_nDelay > 5) { cout

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