Class BackgroundSubtractor

Namespace

OpenCvSharp

Assembly

OpenCvSharp.dll

The Base Class for Background/Foreground Segmentation. The class is only used to define the common interface for the whole family of background/foreground segmentation algorithms.

public abstract class BackgroundSubtractor : Algorithm, IDisposable

Inheritance

object

DisposableObject

CvPtrObject

Algorithm

BackgroundSubtractor

Implements

IDisposable

Derived

BackgroundSubtractorGMG

BackgroundSubtractorKNN

BackgroundSubtractorMOG

BackgroundSubtractorMOG2

Inherited Members

Algorithm.Write(FileStorage)

Algorithm.Read(FileNode)

Algorithm.Empty

Algorithm.Save(string)

Algorithm.GetDefaultName()

CvPtrObject.RawPtr

CvPtrObject.DisposeManaged()

CvPtrObject.DisposeUnmanaged()

DisposableObject.DataHandle

DisposableObject.IsDisposed

DisposableObject.IsEnabledDispose

DisposableObject.AllocatedMemory

DisposableObject.AllocatedMemorySize

DisposableObject.Dispose()

DisposableObject.Dispose(bool)

DisposableObject.AllocGCHandle(object)

DisposableObject.AllocMemory(int)

DisposableObject.NotifyMemoryPressure(long)

DisposableObject.ThrowIfDisposed()

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Constructors

BackgroundSubtractor(nint, nint, Action<nint>)

Constructor for the factory pattern (cv::Ptr<T>* + raw T*).

protected BackgroundSubtractor(nint smartPtr, nint rawPtr, Action<nint> release)

Parameters

smartPtr nint

rawPtr nint

release Action<nint>

Methods

Apply(InputArray, OutputArray, double)

the update operator that takes the next video frame and returns the current foreground mask as 8-bit binary image.

public virtual void Apply(InputArray image, OutputArray fgmask, double learningRate = -1)

Parameters

image InputArray

fgmask OutputArray

learningRate double

GetBackgroundImage(OutputArray)

computes a background image

public virtual void GetBackgroundImage(OutputArray backgroundImage)

Parameters

backgroundImage OutputArray