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Feature2D Class

Abstract base class for 2D image feature detectors and descriptor extractors
Inheritance Hierarchy

Namespace:  OpenCvSharp
Assembly:  OpenCvSharp (in OpenCvSharp.dll) Version: 1.0.0
Syntax
public class Feature2D : Algorithm

The Feature2D type exposes the following members.

Constructors
  NameDescription
Protected methodFeature2D
Default constructor
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Properties
  NameDescription
Protected propertyAllocatedMemory
Gets or sets a memory address allocated by AllocMemory.
(Inherited from DisposableObject.)
Protected propertyAllocatedMemorySize
Gets or sets the byte length of the allocated memory
(Inherited from DisposableObject.)
Public propertyCvPtr
Native pointer of OpenCV structure
(Inherited from DisposableCvObject.)
Protected propertyDataHandle
Gets or sets a handle which allocates using cvSetData.
(Inherited from DisposableObject.)
Public propertyDefaultNorm
Public propertyDescriptorSize
Public propertyDescriptorType
Public propertyEmpty
Returns true if the Algorithm is empty (e.g. in the very beginning or after unsuccessful read
(Inherited from Algorithm.)
Public propertyIsDisposed
Gets a value indicating whether this instance has been disposed.
(Inherited from DisposableObject.)
Public propertyIsEnabledDispose
Gets or sets a value indicating whether you permit disposing this instance.
(Inherited from DisposableObject.)
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Methods
  NameDescription
Protected methodAllocGCHandle
Pins the object to be allocated by cvSetData.
(Inherited from DisposableObject.)
Protected methodAllocMemory
Allocates the specified size of memory.
(Inherited from DisposableObject.)
Public methodCompute(InputArray, KeyPoint, OutputArray)
Compute the descriptors for a set of keypoints in an image.
Public methodCompute(IEnumerableMat, KeyPoint, IEnumerableMat)
Compute the descriptors for a keypoints collection detected in image collection.
Public methodDetect(InputArray, Mat)
Detect keypoints in an image.
Public methodDetect(Mat, Mat)
Detect keypoints in an image.
Public methodDetect(IEnumerableMat, IEnumerableMat)
Detect keypoints in an image set.
Public methodDetectAndCompute
Detects keypoints and computes the descriptors
Public methodDispose
Releases the resources
(Inherited from DisposableObject.)
Protected methodDispose(Boolean)
Releases the resources
(Inherited from DisposableObject.)
Protected methodDisposeManaged
Releases managed resources
(Inherited from DisposableObject.)
Protected methodDisposeUnmanaged
releases unmanaged resources
(Inherited from DisposableCvObject.)
Public methodEmpty
Return true if detector object is empty
Public methodEquals
Determines whether the specified object is equal to the current object.
(Inherited from Object.)
Protected methodFinalize
Destructor
(Inherited from DisposableObject.)
Public methodGetDefaultName
Public methodGetHashCode
Serves as the default hash function.
(Inherited from Object.)
Public methodGetType
Gets the Type of the current instance.
(Inherited from Object.)
Protected methodMemberwiseClone
Creates a shallow copy of the current Object.
(Inherited from Object.)
Protected methodNotifyMemoryPressure
Notifies the allocated size of memory.
(Inherited from DisposableObject.)
Public methodRead(String)
Public methodRead(FileNode)
Reads algorithm parameters from a file storage
(Inherited from Algorithm.)
Public methodSave
Saves the algorithm to a file. In order to make this method work, the derived class must implement Algorithm::write(FileStorage fs).
(Inherited from Algorithm.)
Public methodThrowIfDisposed
If this object is disposed, then ObjectDisposedException is thrown.
(Inherited from DisposableObject.)
Public methodToString
Returns a string that represents the current object.
(Inherited from Object.)
Public methodWrite(String)
Public methodWrite(FileStorage)
Stores algorithm parameters in a file storage
(Inherited from Algorithm.)
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Fields
  NameDescription
Protected fieldptr
Data pointer
(Inherited from DisposableCvObject.)
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See Also
Inheritance Hierarchy
SystemObject
  OpenCvSharpDisposableObject
    OpenCvSharpDisposableCvObject
      OpenCvSharpAlgorithm
        OpenCvSharpFeature2D
          OpenCvSharpAgastFeatureDetector
          OpenCvSharpAKAZE
          OpenCvSharpBRISK
          OpenCvSharpFastFeatureDetector
          OpenCvSharpGFTTDetector
          OpenCvSharpKAZE
          OpenCvSharpMSER
          OpenCvSharpORB
          OpenCvSharpSimpleBlobDetector
          OpenCvSharp.XFeatures2DBriefDescriptorExtractor
          OpenCvSharp.XFeatures2DFREAK
          OpenCvSharp.XFeatures2DLATCH
          OpenCvSharp.XFeatures2DLUCID
          OpenCvSharp.XFeatures2DSIFT
          OpenCvSharp.XFeatures2DStarDetector
          OpenCvSharp.XFeatures2DSURF