Class Tracker

Namespace

Emgu.CV.Legacy

Assembly

Emgu.CV.dll

Long-term tracker

public abstract class Tracker : UnmanagedObject, IDisposable

Inheritance

object

DisposableObject

UnmanagedObject

Tracker

Implements

IDisposable

Derived

TrackerBoosting

TrackerMedianFlow

TrackerMOSSE

TrackerTLD

Inherited Members

UnmanagedObject._ptr

UnmanagedObject.Ptr

DisposableObject.Dispose()

DisposableObject.ReleaseManagedResources()

object.GetType()

object.MemberwiseClone()

object.ToString()

object.Equals(object)

object.Equals(object, object)

object.ReferenceEquals(object, object)

object.GetHashCode()

Constructors

Tracker()

protected Tracker()

Fields

_trackerPtr

The native pointer to the tracker

protected nint _trackerPtr

Field Value

nint

Methods

DisposeObject()

Release the unmanaged memory associated with this tracker

protected override void DisposeObject()

Init(Mat, Rectangle)

Initialize the tracker with a know bounding box that surrounding the target.

public bool Init(Mat image, Rectangle boundingBox)

Parameters

image Mat

The initial frame

boundingBox Rectangle

The initial bounding box

Returns

bool

True if successful.

Update(Mat, out Rectangle)

Update the tracker, find the new most likely bounding box for the target.

public bool Update(Mat image, out Rectangle boundingBox)

Parameters

image Mat

The current frame

boundingBox Rectangle

The bounding box that represent the new target location, if true was returned, not modified otherwise

Returns

bool

True means that target was located and false means that tracker cannot locate target in current frame. Note, that latter does not imply that tracker has failed, maybe target is indeed missing from the frame (say, out of sight)