MotionDetector Class Reference

Analyses video feed by using background subtraction with a running average to detect motion changes. More...

#include <guardmypi.h>

Public Member Functions
Mat	ProcessContours (Mat camerafeed)
	Takes the incoming frame and performs background subtraction using previous frames. More...

Public Attributes
Mat	avg
	Running average of the camerafeed.
int	flag = 0
	Flag variable to invoke ObjectDetector thread t2.

Protected Attributes
Mat	frame_diff
	Difference output between frames.
Mat	grayscale
	Grayscaled version of the camera frame.
Mat	frame_thresh
	Threshold frame.
Mat	scaled_avg
	8-bit Absolute value frame
vector< vector< Point > >	cnts
	Vector of points of detected contours.
Rect	rect
	Up-right rectangle to highlight detected contours.
Point	pt1
	Start point/coordinate for the contour rectangle.
Point	pt2
	End point/coordinate for the contour rectangle.

Detailed Description

Analyses video feed by using background subtraction with a running average to detect motion changes.

Member Function Documentation

ProcessContours()

Mat MotionDetector::ProcessContours

(

Mat

camerafeed

)

Takes the incoming frame and performs background subtraction using previous frames.

Performs background subtraction to detect changes in the frame i.e. motion. Subsequently, alters the flag variable equal to 1 if motion is detected to invoke the object detector in a new thread

See also

ObjectDetector::detect Camera::opencam

Parameters

camerafeed

frame captured from PiCamera or Webcam

Returns

camerafeed with or without "Motion Detected" text to signify code functioning