Open Source Computer Vision Library https://opencv.org/
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#include <iostream>
#include <string>
#include "opencv2/core/core.hpp"
#include "opencv2/ocl/ocl.hpp"
#include "opencv2/highgui/highgui.hpp"
using namespace std;
using namespace cv;
using namespace cv::ocl;
#define M_MOG 1
#define M_MOG2 2
int main(int argc, const char** argv)
{
cv::CommandLineParser cmd(argc, argv,
"{ c | camera | false | use camera }"
"{ f | file | 768x576.avi | input video file }"
"{ m | method | mog | method (mog, mog2) }"
"{ h | help | false | print help message }");
if (cmd.get<bool>("help"))
{
cout << "Usage : bgfg_segm [options]" << endl;
cout << "Avaible options:" << endl;
cmd.printParams();
return 0;
}
bool useCamera = cmd.get<bool>("camera");
string file = cmd.get<string>("file");
string method = cmd.get<string>("method");
if (method != "mog" && method != "mog2")
{
cerr << "Incorrect method" << endl;
return -1;
}
int m = method == "mog" ? M_MOG : M_MOG2;
VideoCapture cap;
if (useCamera)
cap.open(0);
else
cap.open(file);
if (!cap.isOpened())
{
cerr << "can not open camera or video file" << endl;
return -1;
}
std::vector<cv::ocl::Info>info;
cv::ocl::getDevice(info);
Mat frame;
cap >> frame;
oclMat d_frame(frame);
cv::ocl::MOG mog;
cv::ocl::MOG2 mog2;
oclMat d_fgmask;
oclMat d_fgimg;
oclMat d_bgimg;
d_fgimg.create(d_frame.size(), d_frame.type());
Mat fgmask;
Mat fgimg;
Mat bgimg;
switch (m)
{
case M_MOG:
mog(d_frame, d_fgmask, 0.01f);
break;
case M_MOG2:
mog2(d_frame, d_fgmask);
break;
}
for(;;)
{
cap >> frame;
if (frame.empty())
break;
d_frame.upload(frame);
int64 start = cv::getTickCount();
//update the model
switch (m)
{
case M_MOG:
mog(d_frame, d_fgmask, 0.01f);
mog.getBackgroundImage(d_bgimg);
break;
case M_MOG2:
mog2(d_frame, d_fgmask);
mog2.getBackgroundImage(d_bgimg);
break;
}
double fps = cv::getTickFrequency() / (cv::getTickCount() - start);
std::cout << "FPS : " << fps << std::endl;
d_fgimg.setTo(Scalar::all(0));
d_frame.copyTo(d_fgimg, d_fgmask);
d_fgmask.download(fgmask);
d_fgimg.download(fgimg);
if (!d_bgimg.empty())
d_bgimg.download(bgimg);
imshow("image", frame);
imshow("foreground mask", fgmask);
imshow("foreground image", fgimg);
if (!bgimg.empty())
imshow("mean background image", bgimg);
int key = waitKey(30);
if (key == 27)
break;
}
return 0;
}