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Issue with BackgroundSubtractorMOG2

I'm having an issue with the BackgroundSubtractorMOG2 where foreground detection is just not happening at all.
backgroundFrame = 5; while(true) if(backgroundFrame>0) { bg.operator ()(frame,fore,.01); backgroundFrame--; } else { bg.operator()(frame,fore,0); } imshow("MyFrame", fore); } the idea is that the background is collected using 5 frames, and then subsequent frames will not be calculated as part of the background. This is done by changing the learningRate variable from .01 to 0 after 5 iterations. However, after 5 iterations, fore shows up as a completely black screen. From my understanding, it should show any deviance of current frames from the background as white. Does anybody have past experience in this matter?

Thanks!

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Issue with BackgroundSubtractorMOG2

I'm having an issue with the BackgroundSubtractorMOG2 where foreground detection is just not happening at all.
all.

backgroundFrame = 5;
while(true)
 {
 if(backgroundFrame>0)
 {
  bg.operator ()(frame,fore,.01);
 backgroundFrame--;
  }
 else
  {
 bg.operator()(frame,fore,0);
  }
 imshow("MyFrame", fore);
}

the idea is that the background is collected using 5 frames, and then subsequent frames will not be calculated as part of the background. This is done by changing the learningRate variable from .01 to 0 after 5 iterations. However, after 5 iterations, fore shows up as a completely black screen. From my understanding, it should show any deviance of current frames from the background as white. Does anybody have past experience in this matter?

Thanks!