BagOfVisualWords(TPoint, TFeature) Class

SystemObject
  Accord.MachineLearningParallelLearningBase
    Accord.MachineLearningBaseBagOfWordsBagOfVisualWordsTPoint, TFeature, TPoint, TFeature, IUnsupervisedLearningIClassifierTFeature, Int32, TFeature, Int32, IImageFeatureExtractorTPoint, UnmanagedImage
      Accord.ImagingBaseBagOfVisualWordsBagOfVisualWordsTPoint, TFeature, TPoint, TFeature, IUnsupervisedLearningIClassifierTFeature, Int32, TFeature, Int32, IImageFeatureExtractorTPoint
        Accord.ImagingBagOfVisualWordsTPoint, TFeature

[SerializableAttribute]
public class BagOfVisualWords<TPoint, TFeature> : BaseBagOfVisualWords<BagOfVisualWords<TPoint, TFeature>, TPoint, TFeature, IUnsupervisedLearning<IClassifier<TFeature, int>, TFeature, int>, IImageFeatureExtractor<TPoint>>
where TPoint : Object, IFeatureDescriptor<TFeature>

<SerializableAttribute>
Public Class BagOfVisualWords(Of TPoint As {Object, IFeatureDescriptor(Of TFeature)}, TFeature)
	Inherits BaseBagOfVisualWords(Of BagOfVisualWords(Of TPoint, TFeature), TPoint, TFeature, IUnsupervisedLearning(Of IClassifier(Of TFeature, Integer), TFeature, Integer), IImageFeatureExtractor(Of TPoint))

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Type Parameters

TPoint: The IFeaturePointT type to be used with this class, such as SpeededUpRobustFeaturePoint.
TFeature: The feature type of the TPoint, such as double.

	Name	Description
	BagOfVisualWordsTPoint, TFeature	Constructs a new BagOfVisualWords.
	BagOfVisualWordsTPoint, TFeature(IImageFeatureExtractorTPoint, IUnsupervisedLearningIClassifierTFeature, Int32, TFeature, Int32)	Constructs a new BagOfVisualWords.

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	Name	Description
	Clustering	Gets the clustering algorithm used to create this model. (Inherited from BaseBagOfWordsTModel, TPoint, TFeature, TClustering, TExtractor, TInput.)
	Detector	Gets the feature extractor used to identify features in the input data. (Inherited from BaseBagOfWordsTModel, TPoint, TFeature, TClustering, TExtractor, TInput.)
	MaxDescriptorsPerInstance	Gets or sets the maximum number of descriptors per image that should be used to learn the codebook. Default is 0 (meaning to use all descriptors). (Inherited from BaseBagOfWordsTModel, TPoint, TFeature, TClustering, TExtractor, TInput.)
	NumberOfDescriptors	Gets or sets the maximum number of descriptors that should be used to learn the codebook. Default is 0 (meaning to use all descriptors). (Inherited from BaseBagOfWordsTModel, TPoint, TFeature, TClustering, TExtractor, TInput.)
	NumberOfInputs	Gets the number of inputs accepted by the model. (Inherited from BaseBagOfWordsTModel, TPoint, TFeature, TClustering, TExtractor, TInput.)
	NumberOfOutputs	Gets the number of outputs generated by the model. (Inherited from BaseBagOfWordsTModel, TPoint, TFeature, TClustering, TExtractor, TInput.)
	NumberOfWords	Gets the number of words in this codebook. (Inherited from BaseBagOfWordsTModel, TPoint, TFeature, TClustering, TExtractor, TInput.)
	ParallelOptions	Gets or sets the parallelization options for this algorithm. (Inherited from ParallelLearningBase.)
	Statistics	Gets statistics about the last codebook learned. (Inherited from BaseBagOfWordsTModel, TPoint, TFeature, TClustering, TExtractor, TInput.)
	Token	Gets or sets a cancellation token that can be used to cancel the algorithm while it is running. (Inherited from ParallelLearningBase.)

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	Name	Description
	Compute(Bitmap)	Obsolete. Computes the Bag of Words model. (Inherited from BaseBagOfVisualWordsTModel, TFeature, TPoint, TClustering, TExtractor.)
	Compute(TPoint)	Obsolete. Computes the Bag of Words model. (Inherited from BaseBagOfVisualWordsTModel, TFeature, TPoint, TClustering, TExtractor.)
	Compute(Bitmap, Double)	Obsolete. Computes the Bag of Words model. (Inherited from BaseBagOfVisualWordsTModel, TFeature, TPoint, TClustering, TExtractor.)
	Equals	Determines whether the specified object is equal to the current object. (Inherited from Object.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	For	Executes a parallel for using the feature detector in a thread-safe way. (Inherited from BaseBagOfWordsTModel, TPoint, TFeature, TClustering, TExtractor, TInput.)
	GetFeatureVector(ListTFeature)	Obsolete. Gets the codeword representation of a given image. (Inherited from BaseBagOfVisualWordsTModel, TFeature, TPoint, TClustering, TExtractor.)
	GetFeatureVector(Bitmap)	Obsolete. Gets the codeword representation of a given image. (Inherited from BaseBagOfVisualWordsTModel, TFeature, TPoint, TClustering, TExtractor.)
	GetFeatureVector(String)	Obsolete. Gets the codeword representation of a given image. (Inherited from BaseBagOfVisualWordsTModel, TFeature, TPoint, TClustering, TExtractor.)
	GetFeatureVector(UnmanagedImage)	Obsolete. Gets the codeword representation of a given image. (Inherited from BaseBagOfVisualWordsTModel, TFeature, TPoint, TClustering, TExtractor.)
	GetHashCode	Serves as the default hash function. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	Init	Initializes this instance. (Inherited from BaseBagOfWordsTModel, TPoint, TFeature, TClustering, TExtractor, TInput.)
	InnerLearnT	Generic learn method implementation that should work for any input type. This method is useful for re-using code between methods that accept Bitmap, BitmapData, UnmanagedImage, filenames as strings, etc. (Inherited from BaseBagOfWordsTModel, TPoint, TFeature, TClustering, TExtractor, TInput.)
	Learn(Bitmap, Double)	Learns a model that can map the given inputs to the desired outputs. (Inherited from BaseBagOfVisualWordsTModel, TFeature, TPoint, TClustering, TExtractor.)
	Learn(String, Double)	Learns a model that can map the given inputs to the desired outputs. (Inherited from BaseBagOfVisualWordsTModel, TFeature, TPoint, TClustering, TExtractor.)
	Learn(TFeature, Double)	Learns a model that can map the given inputs to the desired outputs. (Inherited from BaseBagOfWordsTModel, TPoint, TFeature, TClustering, TExtractor, TInput.)
	Learn(TInput, Double)	Learns a model that can map the given inputs to the desired outputs. (Inherited from BaseBagOfWordsTModel, TPoint, TFeature, TClustering, TExtractor, TInput.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	Save(Stream)	Obsolete. Saves the bag of words to a stream. (Inherited from BaseBagOfVisualWordsTModel, TFeature, TPoint, TClustering, TExtractor.)
	Save(String)	Obsolete. Saves the bag of words to a file. (Inherited from BaseBagOfVisualWordsTModel, TFeature, TPoint, TClustering, TExtractor.)
	ToString	Returns a string that represents the current object. (Inherited from Object.)
	Transform(Bitmap)	Applies the transformation to an input, producing an associated output. (Inherited from BaseBagOfVisualWordsTModel, TFeature, TPoint, TClustering, TExtractor.)
	Transform(Bitmap)	Applies the transformation to a set of input vectors, producing an associated set of output vectors. (Inherited from BaseBagOfVisualWordsTModel, TFeature, TPoint, TClustering, TExtractor.)
	Transform(String)	Applies the transformation to an input, producing an associated output. (Inherited from BaseBagOfVisualWordsTModel, TFeature, TPoint, TClustering, TExtractor.)
	Transform(String)	Applies the transformation to a set of input vectors, producing an associated set of output vectors. (Inherited from BaseBagOfVisualWordsTModel, TFeature, TPoint, TClustering, TExtractor.)
	Transform(ListTPoint)	Applies the transformation to an input, producing an associated output. (Inherited from BaseBagOfWordsTModel, TPoint, TFeature, TClustering, TExtractor, TInput.)
	Transform(TInput)	Applies the transformation to an input, producing an associated output. (Inherited from BaseBagOfWordsTModel, TPoint, TFeature, TClustering, TExtractor, TInput.)
	Transform(TInput)	Applies the transformation to a set of input vectors, producing an associated set of output vectors. (Inherited from BaseBagOfWordsTModel, TPoint, TFeature, TClustering, TExtractor, TInput.)
	Transform(Bitmap, Double)	Applies the transformation to a set of input vectors, producing an associated set of output vectors. (Inherited from BaseBagOfVisualWordsTModel, TFeature, TPoint, TClustering, TExtractor.)
	Transform(Bitmap, Int32)	Applies the transformation to a set of input vectors, producing an associated set of output vectors. (Inherited from BaseBagOfVisualWordsTModel, TFeature, TPoint, TClustering, TExtractor.)
	Transform(Bitmap, Double)	Applies the transformation to a set of input vectors, producing an associated set of output vectors. (Inherited from BaseBagOfVisualWordsTModel, TFeature, TPoint, TClustering, TExtractor.)
	Transform(Bitmap, Int32)	Applies the transformation to a set of input vectors, producing an associated set of output vectors. (Inherited from BaseBagOfVisualWordsTModel, TFeature, TPoint, TClustering, TExtractor.)
	Transform(String, Double)	Applies the transformation to a set of input vectors, producing an associated set of output vectors. (Inherited from BaseBagOfVisualWordsTModel, TFeature, TPoint, TClustering, TExtractor.)
	Transform(String, Int32)	Applies the transformation to a set of input vectors, producing an associated set of output vectors. (Inherited from BaseBagOfVisualWordsTModel, TFeature, TPoint, TClustering, TExtractor.)
	Transform(String, Double)	Applies the transformation to a set of input vectors, producing an associated set of output vectors. (Inherited from BaseBagOfVisualWordsTModel, TFeature, TPoint, TClustering, TExtractor.)
	Transform(String, Int32)	Applies the transformation to a set of input vectors, producing an associated set of output vectors. (Inherited from BaseBagOfVisualWordsTModel, TFeature, TPoint, TClustering, TExtractor.)
	Transform(IEnumerableTPoint, Double)	Applies the transformation to a set of input vectors, producing an associated set of output vectors. (Inherited from BaseBagOfWordsTModel, TPoint, TFeature, TClustering, TExtractor, TInput.)
	Transform(IEnumerableTPoint, Int32)	Applies the transformation to a set of input vectors, producing an associated set of output vectors. (Inherited from BaseBagOfWordsTModel, TPoint, TFeature, TClustering, TExtractor, TInput.)
	Transform(TInput, Double)	Applies the transformation to a set of input vectors, producing an associated set of output vectors. (Inherited from BaseBagOfWordsTModel, TPoint, TFeature, TClustering, TExtractor, TInput.)
	Transform(TInput, Int32)	Applies the transformation to a set of input vectors, producing an associated set of output vectors. (Inherited from BaseBagOfWordsTModel, TPoint, TFeature, TClustering, TExtractor, TInput.)
	Transform(TInput, Double)	Applies the transformation to a set of input vectors, producing an associated set of output vectors. (Inherited from BaseBagOfWordsTModel, TPoint, TFeature, TClustering, TExtractor, TInput.)
	Transform(TInput, Int32)	Applies the transformation to a set of input vectors, producing an associated set of output vectors. (Inherited from BaseBagOfWordsTModel, TPoint, TFeature, TClustering, TExtractor, TInput.)

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	Name	Description
	HasMethod	Checks whether an object implements a method with the given name. (Defined by ExtensionMethods.)
	IsEqual	Compares two objects for equality, performing an elementwise comparison if the elements are vectors or matrices. (Defined by Matrix.)
	To(Type)	Overloaded. Converts an object into another type, irrespective of whether the conversion can be done at compile time or not. This can be used to convert generic types to numeric types during runtime. (Defined by ExtensionMethods.)
	ToT	Overloaded. Converts an object into another type, irrespective of whether the conversion can be done at compile time or not. This can be used to convert generic types to numeric types during runtime. (Defined by ExtensionMethods.)

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The bag-of-words (BoW) model can be used to extract finite length features from otherwise varying length representations. This class can uses any feature detector to determine a coded representation for a given image.

For a simpler, non-generic version of the Bag-of-Words model which defaults to the SURF features detector, please see BagOfVisualWords.

Please see BagOfVisualWords.

Reference

Accord.Imaging Namespace

Accord.ImagingBagOfVisualWords

BagOfVisualWordsAddLanguageSpecificTextSet("LST138E92EA_0?cs=&lt;|vb=(Of |cpp=&lt;|fs=&lt;'|nu=(");TPoint, TFeatureAddLanguageSpecificTextSet("LST138E92EA_1?cs=&gt;|vb=)|cpp=&gt;|fs=&gt;|nu=)"); Class

Type Parameters

Reference

BagOfVisualWordsTPoint, TFeature Class