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<                      int minNeighbors, int flags, CvSize minSize, CvSize maxSize )
---
>                      int minNeighbors, int flags, CvSize minSize, CvSize maxSize,
>                      int horizon,
>                      double relMarginTop, 
>                      double relMarginBottom, 
>                      int fixedMargin)
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>     bool doPerspectivePruning = (flags & CV_HAAR_DO_PERSPECTIVE_PRUNING) != 0;
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> 			int y1_ = cvRound((horizon - relMarginTop * winSize.height - fixedMargin)/ystep);
> 			if (y1_ > startY)
> 				startY = y1_;
> 			int y2_ = cvRound((horizon + relMarginBottom * winSize.height + fixedMargin)/ystep);
> 			if (y2_ < endY)
> 				endY = y2_;            
>