Episode_12_FPS / Frame per Second

Well, I do not want to talk much more about what it is FPS, you can find yourself in google. I just want to help you if your camera doesn't support with FPS.

Get Frame information in OpenCV:

• int fps = (int) cvGetCaptureProperty(capture, CV_CAP_PROP_FPS);
• float posMsec = cvGetCaptureProperty(capture, CV_CAP_PROP_POS_MSEC);
• int posFrames = (int) cvGetCaptureProperty(capture, CV_CAP_PROP_POS_FRAMES);
• float posRatio = cvGetCaptureProperty(capture, CV_CAP_PROP_POS_AVI_RATIO);

So I have a tips to solve for this solution.

#include "time.h"

int main (int argc, char* argv[])
{
 int fps,fpsfix,second;
 ...
 ...
 SYSTEMTIME st; //time & date function in c ++
 ...
 while(1) //insert in your looping
 {
   // how to make fps !!
   sprintf(f, "%d", fpsfix);
   fps = fps++;
   GetSystemTime(&st); //using GetSystemTime function.
   if (second != st.wSecond) //if the second is not same as before then record fps
   {   
   fpsfix = fps;
   fps = 0;
   }
   second = st.wSecond;

   cvPutText (frame,"fps : ",cvPoint(10,230), &font2, cvScalar(0,255,0));
   cvPutText (frame,f,cvPoint(40,230), &font2, cvScalar(0,255,0));
   ...
 }
 return 0;
}

picture 0_frame_per_second