OpenCVForUnity.BgsegmModule.BackgroundSubtractorCNT Class Reference

Background subtraction based on counting. More...

Inheritance diagram for OpenCVForUnity.BgsegmModule.BackgroundSubtractorCNT:

Public Member Functions
override void	apply (Mat image, Mat fgmask, double learningRate)
	Computes a foreground mask. More...
override void	apply (Mat image, Mat fgmask)
	Computes a foreground mask. More...
override void	getBackgroundImage (Mat backgroundImage)
	Computes a background image. More...
int	getMinPixelStability ()
	Returns number of frames with same pixel color to consider stable. More...
void	setMinPixelStability (int value)
	Sets the number of frames with same pixel color to consider stable. More...
int	getMaxPixelStability ()
	Returns maximum allowed credit for a pixel in history. More...
void	setMaxPixelStability (int value)
	Sets the maximum allowed credit for a pixel in history. More...
bool	getUseHistory ()
	Returns if we're giving a pixel credit for being stable for a long time. More...
void	setUseHistory (bool value)
	Sets if we're giving a pixel credit for being stable for a long time. More...
bool	getIsParallel ()
	Returns if we're parallelizing the algorithm. More...
void	setIsParallel (bool value)
	Sets if we're parallelizing the algorithm. More...
Public Member Functions inherited from OpenCVForUnity.CoreModule.Algorithm
IntPtr	getNativeObjAddr ()
virtual void	clear ()
	Clears the algorithm state. More...
virtual bool	empty ()
	Returns true if the Algorithm is empty (e.g. in the very beginning or after unsuccessful read. More...
void	save (string filename)
virtual string	getDefaultName ()
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.DisposableOpenCVObject
	DisposableOpenCVObject ()
	DisposableOpenCVObject (IntPtr ptr)
	DisposableOpenCVObject (bool isEnabledDispose)
	DisposableOpenCVObject (IntPtr ptr, bool isEnabledDispose)
Protected Member Functions inherited from OpenCVForUnity.DisposableObject
	DisposableObject ()
	DisposableObject (bool isEnabledDispose)

Additional Inherited Members
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, 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.

apply() [2/2]

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.

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.

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

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