OpenCV  4.2.0-pre
Open Source Computer Vision
Public Member Functions | List of all members
cv::cuda::Feature2DAsync Class Referenceabstract

Abstract base class for CUDA asynchronous 2D image feature detectors and descriptor extractors. More...

#include <opencv2/cudafeatures2d.hpp>

Inheritance diagram for cv::cuda::Feature2DAsync:
cv::Feature2D cv::Algorithm cv::cuda::FastFeatureDetector cv::cuda::ORB

Public Member Functions

virtual ~Feature2DAsync ()
 
virtual void computeAsync (InputArray image, OutputArray keypoints, OutputArray descriptors, Stream &stream=Stream::Null())
 Computes the descriptors for a set of keypoints detected in an image. More...
 
virtual void convert (InputArray gpu_keypoints, std::vector< KeyPoint > &keypoints)=0
 
virtual void detectAndComputeAsync (InputArray image, InputArray mask, OutputArray keypoints, OutputArray descriptors, bool useProvidedKeypoints=false, Stream &stream=Stream::Null())
 
virtual void detectAsync (InputArray image, OutputArray keypoints, InputArray mask=noArray(), Stream &stream=Stream::Null())
 Detects keypoints in an image. More...
 
- Public Member Functions inherited from cv::Feature2D
virtual ~Feature2D ()
 
virtual void compute (InputArray image, std::vector< KeyPoint > &keypoints, OutputArray descriptors)
 Computes the descriptors for a set of keypoints detected in an image (first variant) or image set (second variant). More...
 
virtual void compute (InputArrayOfArrays images, std::vector< std::vector< KeyPoint > > &keypoints, OutputArrayOfArrays descriptors)
 
virtual int defaultNorm () const
 
virtual int descriptorSize () const
 
virtual int descriptorType () const
 
virtual void detect (InputArray image, std::vector< KeyPoint > &keypoints, InputArray mask=noArray())
 Detects keypoints in an image (first variant) or image set (second variant). More...
 
virtual void detect (InputArrayOfArrays images, std::vector< std::vector< KeyPoint > > &keypoints, InputArrayOfArrays masks=noArray())
 
virtual void detectAndCompute (InputArray image, InputArray mask, std::vector< KeyPoint > &keypoints, OutputArray descriptors, bool useProvidedKeypoints=false)
 
virtual bool empty () const CV_OVERRIDE
 Return true if detector object is empty. More...
 
virtual String getDefaultName () const CV_OVERRIDE
 
void read (const String &fileName)
 
virtual void read (const FileNode &) CV_OVERRIDE
 Reads algorithm parameters from a file storage. More...
 
void write (const String &fileName) const
 
virtual void write (FileStorage &) const CV_OVERRIDE
 Stores algorithm parameters in a file storage. More...
 
void write (const Ptr< FileStorage > &fs, const String &name=String()) const
 
- Public Member Functions inherited from cv::Algorithm
 Algorithm ()
 
virtual ~Algorithm ()
 
virtual void clear ()
 Clears the algorithm state. More...
 
virtual void save (const String &filename) const
 
void write (const Ptr< FileStorage > &fs, const String &name=String()) const
 simplified API for language bindings This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. More...
 

Additional Inherited Members

- Static Public Member Functions inherited from cv::Algorithm
template<typename _Tp >
static Ptr< _Tp > load (const String &filename, const String &objname=String())
 Loads algorithm from the file. More...
 
template<typename _Tp >
static Ptr< _Tp > loadFromString (const String &strModel, const String &objname=String())
 Loads algorithm from a String. More...
 
template<typename _Tp >
static Ptr< _Tp > read (const FileNode &fn)
 Reads algorithm from the file node. More...
 
- Protected Member Functions inherited from cv::Algorithm
void writeFormat (FileStorage &fs) const
 

Detailed Description

Abstract base class for CUDA asynchronous 2D image feature detectors and descriptor extractors.

Constructor & Destructor Documentation

◆ ~Feature2DAsync()

virtual cv::cuda::Feature2DAsync::~Feature2DAsync ( )
virtual

Member Function Documentation

◆ computeAsync()

virtual void cv::cuda::Feature2DAsync::computeAsync ( InputArray  image,
OutputArray  keypoints,
OutputArray  descriptors,
Stream stream = Stream::Null() 
)
virtual

Computes the descriptors for a set of keypoints detected in an image.

Parameters
imageImage.
keypointsInput collection of keypoints.
descriptorsComputed descriptors. Row j is the descriptor for j-th keypoint.
streamCUDA stream.

◆ convert()

virtual void cv::cuda::Feature2DAsync::convert ( InputArray  gpu_keypoints,
std::vector< KeyPoint > &  keypoints 
)
pure virtual

Converts keypoints array from internal representation to standard vector.

◆ detectAndComputeAsync()

virtual void cv::cuda::Feature2DAsync::detectAndComputeAsync ( InputArray  image,
InputArray  mask,
OutputArray  keypoints,
OutputArray  descriptors,
bool  useProvidedKeypoints = false,
Stream stream = Stream::Null() 
)
virtual

Detects keypoints and computes the descriptors.

◆ detectAsync()

virtual void cv::cuda::Feature2DAsync::detectAsync ( InputArray  image,
OutputArray  keypoints,
InputArray  mask = noArray(),
Stream stream = Stream::Null() 
)
virtual

Detects keypoints in an image.

Parameters
imageImage.
keypointsThe detected keypoints.
maskMask specifying where to look for keypoints (optional). It must be a 8-bit integer matrix with non-zero values in the region of interest.
streamCUDA stream.

The documentation for this class was generated from the following file: