Class BackgroundSubtraction

Namespace

Bonsai.Vision

Assembly

Bonsai.Vision.dll

Represents an operator that performs image segmentation of every frame in the sequence using an online estimation of the background.

public class BackgroundSubtraction : Transform<IplImage, IplImage>

Inheritance

object

Combinator<IplImage, IplImage>

Transform<IplImage, IplImage>

BackgroundSubtraction

Inherited Members

Combinator<IplImage, IplImage>.Process(IObservable<IplImage>)

object.ToString()

object.Equals(object)

object.Equals(object, object)

object.ReferenceEquals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

Properties

AdaptationRate

Gets or sets a value determining how fast the online estimation of the background is adapted.

[Range(0, 1)]
[Precision(2, 0.01)]
public double AdaptationRate { get; set; }

Property Value

double

BackgroundFrames

Gets or sets the number of frames to use for initial background estimation.

public int BackgroundFrames { get; set; }

Property Value

int

SubtractionMethod

Gets or sets a value specifying the subtraction method used to isolate foreground pixels.

public SubtractionMethod SubtractionMethod { get; set; }

Property Value

SubtractionMethod

ThresholdType

Gets or sets a value specifying the type of threshold to apply to individual pixels.

[TypeConverter(typeof(BackgroundSubtraction.ThresholdTypeConverter))]
public ThresholdTypes ThresholdType { get; set; }

Property Value

ThresholdTypes

ThresholdValue

Gets or sets the threshold value used to test whether individual pixels are foreground or background.

[Range(0, 255)]
[Precision(0, 1)]
public double ThresholdValue { get; set; }

Property Value

double

Methods

Process(IObservable<IplImage>)

Performs image segmentation of every frame in an observable sequence using an online estimation of the background.

public override IObservable<IplImage> Process(IObservable<IplImage> source)

Parameters

source IObservable<IplImage>

The sequence of frames on which to perform image segmentation.

Returns

IObservable<IplImage>

The sequence of images which have been segmented into foreground and background pixels.