C# Class HandInput.Util.Background

A background model.

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Public Methods

Method	Description
AccumulateBackground ( Single>.Image image ) : void	Learns the background statisitics for one more frame.
Background ( int width, int height ) : System
BackgroundDiff ( Single>.Image image, Byte>.Image mask ) : void	Segments an input image into foreground and background.
CreateModelsFromStats ( ) : void	Creates a statistical model of the background if the model is not created.
ToString ( ) : String

Private Methods

Method	Description
SetHighThreshold ( float scale ) : void	Sets the high threshold of the background model for each pixel. Any value above that threashold for a particular pixel is considered foreground. High threshold = average value + average absolute difference * scale
SetLowThreshold ( float scale ) : void	Sets the low threshold of the background model for each pixel. Any value below that threashold for a particular pixel is considered foreground. Low threshold = average value - average absolute difference * scale

Method Details

AccumulateBackground() public method

Learns the background statisitics for one more frame.

public AccumulateBackground ( Single>.Image image ) : void
image	Single>.Image	Image to be accumulated for learning background statistics.
return	void

Background() public method

public Background ( int width, int height ) : System
width	int
height	int
return	System

BackgroundDiff() public method

Segments an input image into foreground and background.

public BackgroundDiff ( Single>.Image image, Byte>.Image mask ) : void
image	Single>.Image	image of which the background needs to be subtracted.
mask	Byte>.Image	a value of 255 in the mask means the pixel is foreground, and a /// value of 0 means the corresponding pixel is background.
return	void

CreateModelsFromStats() public method

Creates a statistical model of the background if the model is not created.

public CreateModelsFromStats ( ) : void
return	void

ToString() public method

public ToString ( ) : String
return	String