Background subtraction based on counting. More...

Public Member Functions
override void	apply (Mat image, Mat fgmask)
	Computes a foreground mask.

override void	apply (Mat image, Mat fgmask, double learningRate)
	Computes a foreground mask.

override void	getBackgroundImage (Mat backgroundImage)
	Computes a background image.

bool	getIsParallel ()
	Returns if we're parallelizing the algorithm.

int	getMaxPixelStability ()
	Returns maximum allowed credit for a pixel in history.

int	getMinPixelStability ()
	Returns number of frames with same pixel color to consider stable.

bool	getUseHistory ()
	Returns if we're giving a pixel credit for being stable for a long time.

void	setIsParallel (bool value)
	Sets if we're parallelizing the algorithm.

void	setMaxPixelStability (int value)
	Sets the maximum allowed credit for a pixel in history.

void	setMinPixelStability (int value)
	Sets the number of frames with same pixel color to consider stable.

void	setUseHistory (bool value)
	Sets if we're giving a pixel credit for being stable for a long time.

Public Member Functions inherited from OpenCVForUnity.VideoModule.BackgroundSubtractor
Public Member Functions inherited from OpenCVForUnity.CoreModule.Algorithm
virtual void	clear ()
	Clears the algorithm state.

virtual bool	empty ()
	Returns true if the Algorithm is empty (e.g. in the very beginning or after unsuccessful read.

virtual string	getDefaultName ()

IntPtr	getNativeObjAddr ()

void	save (string filename)

Public Member Functions inherited from OpenCVForUnity.DisposableObject
void	Dispose ()

void	ThrowIfDisposed ()

Static Public Member Functions
static new BackgroundSubtractorCNT	__fromPtr__ (IntPtr addr)

Static Public Member Functions inherited from OpenCVForUnity.VideoModule.BackgroundSubtractor
static new BackgroundSubtractor	__fromPtr__ (IntPtr addr)

Static Public Member Functions inherited from OpenCVForUnity.CoreModule.Algorithm
static Algorithm	__fromPtr__ (IntPtr addr)

Static Public Member Functions inherited from OpenCVForUnity.DisposableObject
static IntPtr	ThrowIfNullIntPtr (IntPtr ptr)

Protected Member Functions
override void	Dispose (bool disposing)

Protected Member Functions inherited from OpenCVForUnity.VideoModule.BackgroundSubtractor
Protected Member Functions inherited from OpenCVForUnity.CoreModule.Algorithm
Protected Member Functions inherited from OpenCVForUnity.DisposableOpenCVObject
	DisposableOpenCVObject ()

	DisposableOpenCVObject (bool isEnabledDispose)

	DisposableOpenCVObject (IntPtr ptr)

	DisposableOpenCVObject (IntPtr ptr, bool isEnabledDispose)

override void	Dispose (bool disposing)

Protected Member Functions inherited from OpenCVForUnity.DisposableObject
	DisposableObject ()

	DisposableObject (bool isEnabledDispose)

Additional Inherited Members
Package Functions inherited from OpenCVForUnity.VideoModule.BackgroundSubtractor
Package Functions inherited from OpenCVForUnity.CoreModule.Algorithm
Package Attributes inherited from OpenCVForUnity.DisposableOpenCVObject
Properties inherited from OpenCVForUnity.DisposableObject
bool	IsDisposed `[get, protected set]`

bool	IsEnabledDispose `[get, set]`

Detailed Description

Background subtraction based on counting.

About as fast as MOG2 on a high end system. More than twice faster than MOG2 on cheap hardware (benchmarked on Raspberry Pi3).

Algorithm by Sagi Zeevi ( https://github.com/sagi-z/BackgroundSubtractorCNT )

Member Function Documentation

◆ fromPtr()

static new BackgroundSubtractorCNT OpenCVForUnity.BgsegmModule.BackgroundSubtractorCNT.__fromPtr__ ( IntPtr addr )

static

◆ apply() [1/2]

override void OpenCVForUnity.BgsegmModule.BackgroundSubtractorCNT.apply	(	Mat	image,
		Mat	fgmask )

virtual

Computes a foreground mask.

Parameters

image	Next video frame.
fgmask	The output foreground mask as an 8-bit binary image.
learningRate	The value between 0 and 1 that indicates how fast the background model is learnt. Negative parameter value makes the algorithm to use some automatically chosen learning rate. 0 means that the background model is not updated at all, 1 means that the background model is completely reinitialized from the last frame.

Reimplemented from OpenCVForUnity.VideoModule.BackgroundSubtractor.

◆ apply() [2/2]

override void OpenCVForUnity.BgsegmModule.BackgroundSubtractorCNT.apply	(	Mat	image,
		Mat	fgmask,
		double	learningRate )

virtual

Computes a foreground mask.

Parameters

image	Next video frame.
fgmask	The output foreground mask as an 8-bit binary image.
learningRate	The value between 0 and 1 that indicates how fast the background model is learnt. Negative parameter value makes the algorithm to use some automatically chosen learning rate. 0 means that the background model is not updated at all, 1 means that the background model is completely reinitialized from the last frame.

Reimplemented from OpenCVForUnity.VideoModule.BackgroundSubtractor.

◆ Dispose()

override void OpenCVForUnity.BgsegmModule.BackgroundSubtractorCNT.Dispose ( bool disposing )

protectedvirtual

Reimplemented from OpenCVForUnity.VideoModule.BackgroundSubtractor.

◆ getBackgroundImage()

override void OpenCVForUnity.BgsegmModule.BackgroundSubtractorCNT.getBackgroundImage ( Mat backgroundImage )

virtual

Computes a background image.

Parameters

backgroundImage The output background image.

Note: Sometimes the background image can be very blurry, as it contain the average background statistics.

Reimplemented from OpenCVForUnity.VideoModule.BackgroundSubtractor.

◆ getIsParallel()

bool OpenCVForUnity.BgsegmModule.BackgroundSubtractorCNT.getIsParallel ( )

Returns if we're parallelizing the algorithm.

◆ getMaxPixelStability()

int OpenCVForUnity.BgsegmModule.BackgroundSubtractorCNT.getMaxPixelStability ( )

Returns maximum allowed credit for a pixel in history.

◆ getMinPixelStability()

int OpenCVForUnity.BgsegmModule.BackgroundSubtractorCNT.getMinPixelStability ( )

Returns number of frames with same pixel color to consider stable.

◆ getUseHistory()

bool OpenCVForUnity.BgsegmModule.BackgroundSubtractorCNT.getUseHistory ( )

Returns if we're giving a pixel credit for being stable for a long time.

◆ setIsParallel()

void OpenCVForUnity.BgsegmModule.BackgroundSubtractorCNT.setIsParallel ( bool value )

Sets if we're parallelizing the algorithm.

◆ setMaxPixelStability()

void OpenCVForUnity.BgsegmModule.BackgroundSubtractorCNT.setMaxPixelStability ( int value )

Sets the maximum allowed credit for a pixel in history.

◆ setMinPixelStability()

void OpenCVForUnity.BgsegmModule.BackgroundSubtractorCNT.setMinPixelStability ( int value )

Sets the number of frames with same pixel color to consider stable.

◆ setUseHistory()

void OpenCVForUnity.BgsegmModule.BackgroundSubtractorCNT.setUseHistory ( bool value )

Sets if we're giving a pixel credit for being stable for a long time.

The documentation for this class was generated from the following file:

OpenCVForUnity/Assets/OpenCVForUnity/org/opencv_contrib/bgsegm/BackgroundSubtractorCNT.cs

Public Member Functions

Static Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ __fromPtr__()

◆ apply() [1/2]

◆ apply() [2/2]

◆ Dispose()

◆ getBackgroundImage()

◆ getIsParallel()

◆ getMaxPixelStability()

◆ getMinPixelStability()

◆ getUseHistory()

◆ setIsParallel()

◆ setMaxPixelStability()

◆ setMinPixelStability()

◆ setUseHistory()

◆ fromPtr()