65 lines
1.5 KiB
C++
65 lines
1.5 KiB
C++
#include "opencv2/video/background_segm.hpp"
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#include "opencv2/highgui/highgui.hpp"
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#include <stdio.h>
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using namespace cv;
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void help()
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{
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printf("\nDo background segmentation, especially demonstrating the use of cvUpdateBGStatModel().\n"
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"Learns the background at the start and then segments.\n"
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"Learning is togged by the space key. Will read from file or camera\n"
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"Call:\n"
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"./ bgfg_segm [file name -- if no name, read from camera]\n\n");
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}
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//this is a sample for foreground detection functions
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int main(int argc, char** argv)
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{
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VideoCapture cap;
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bool update_bg_model = true;
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if( argc < 2 )
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cap.open(0);
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else
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cap.open(argv[1]);
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help();
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if( !cap.isOpened() )
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{
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printf("can not open camera or video file\n");
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return -1;
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}
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namedWindow("BG", 1);
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namedWindow("FG", 1);
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BackgroundSubtractorMOG2 bg_model;
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Mat img, fgmask;
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for(;;)
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{
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cap >> img;
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if( img.empty() )
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break;
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bg_model(img, fgmask, update_bg_model ? -1 : 0);
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imshow("image", img);
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imshow("foreground mask", fgmask);
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char k = (char)waitKey(30);
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if( k == 27 ) break;
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if( k == ' ' )
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{
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update_bg_model = !update_bg_model;
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if(update_bg_model)
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printf("Background update is on\n");
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else
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printf("Background update is off\n");
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}
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}
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return 0;
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}
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