Class cv::cuda::CannyEdgeDetector

Base class for Canny Edge Detector. :

#include <opencv2/cudaimgproc.hpp>

Collaboration diagram for cv::cuda::CannyEdgeDetector:

Public Member Functions

Public Member Functions inherited from cv::Algorithm

Return	Name	Description
	Algorithm()
	~Algorithm()
void	clear()	Clears the algorithm state.
bool	empty()	Returns true if the Algorithm is empty (e.g. in the very beginning or after unsuccessful read.
String	getDefaultName()
void	read(const FileNode & fn)	Reads algorithm parameters from a file storage.
void	save(const String & filename)
void	write(     const Ptr< FileStorage > & fs,     const String & name = String() )
void	write(FileStorage & fs)	Stores algorithm parameters in a file storage.
void	write(     FileStorage & fs,     const String & name )

Static Public Member Functions

Static Public Member Functions inherited from cv::Algorithm

Return	Name	Description
static Ptr< _Tp >	load(     const String & filename,     const String & objname = String() )	Loads algorithm from the file.
static Ptr< _Tp >	loadFromString(     const String & strModel,     const String & objname = String() )	Loads algorithm from a String.
static Ptr< _Tp >	read(const FileNode & fn)	Reads algorithm from the file node.

Additional Inherited Members

Protected Member Functions inherited from cv::Algorithm

Return	Name	Description
void	writeFormat(FileStorage & fs)

Detailed Description

Base class for Canny Edge Detector. :

Member Function Documentation

detect()

void cv::cuda::CannyEdgeDetector::detect(
InputArray dx,
InputArray dy,
OutputArray edges,
Stream & stream = Stream::Null() )

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Parameters

• dx — First derivative of image in the vertical direction. Support only CV_32S type.

• dy — First derivative of image in the horizontal direction. Support only CV_32S type.

• edges — Output edge map. It has the same size and type as image.

• stream — Stream for the asynchronous version.

detect()

void cv::cuda::CannyEdgeDetector::detect(
InputArray image,
OutputArray edges,
Stream & stream = Stream::Null() )

Finds edges in an image using the [54] algorithm.

Parameters

• image — Single-channel 8-bit input image.

• edges — Output edge map. It has the same size and type as image.

• stream — Stream for the asynchronous version.

getAppertureSize()

int cv::cuda::CannyEdgeDetector::getAppertureSize()

getHighThreshold()

double cv::cuda::CannyEdgeDetector::getHighThreshold()

getL2Gradient()

bool cv::cuda::CannyEdgeDetector::getL2Gradient()

getLowThreshold()

double cv::cuda::CannyEdgeDetector::getLowThreshold()

setAppertureSize()

void cv::cuda::CannyEdgeDetector::setAppertureSize(int apperture_size)

setHighThreshold()

void cv::cuda::CannyEdgeDetector::setHighThreshold(double high_thresh)

setL2Gradient()

void cv::cuda::CannyEdgeDetector::setL2Gradient(bool L2gradient)

setLowThreshold()

void cv::cuda::CannyEdgeDetector::setLowThreshold(double low_thresh)

Source file

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

• opencv2/cudaimgproc.hpp