ObjectDetector Class Reference

Used to analyse incoming feed from the camera for different objects such as Pets etc... More...

#include <guardmypi.h>

Public Member Functions
int	loadcascade (String cascadename)
	Loads the classifier with a given cascade file. More...
int	detect (Mat ReferenceFrame, double scale_factor, int neighbours, clock_t startTime)
	Performs object detection on the incoming frame for the given cascade file. More...

Public Attributes
int	flag = -1
	Flag initially set to -1 for detecting a dog.

Protected Attributes
CascadeClassifier	cascade
	cascade classifier object
Mat	GrayFrame
	grayscale frame for processing
Point	pt1
	Start point/coordinate for the object rectangle.
Point	pt2
	End point/coordinate for the object rectangle.

Detailed Description

Used to analyse incoming feed from the camera for different objects such as Pets etc...

Member Function Documentation

detect()

int ObjectDetector::detect	(	Mat	ReferenceFrame,
		double	scale_factor,
		int	neighbours,
		clock_t	startTime
	)

Performs object detection on the incoming frame for the given cascade file.

If the object (in this case a pet) is detected within 10 seconds, a flag is raised. If not, the flag is set to 0.

Parameters

ReferenceFrame	Input frame from the video frame capture
scale_factor	Parameter given to detectMultiScale method, specifying how much the image size is reduced at each image scale
neighbours	Parameter given to detectMultiScale method, specifying how many neighbors each candidate rectangle should have to retain it
startTime	Initial time stamp used to calculate time passed

loadcascade()

int ObjectDetector::loadcascade

(

String

cascadename

)

Loads the classifier with a given cascade file.

Parameters

cascadename

File name of cascade XML file