Class cv::cuda::HoughLinesDetector

Base class for lines detector algorithm. :

#include <opencv2/cudaimgproc.hpp>

Collaboration diagram for cv::cuda::HoughLinesDetector:

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 lines detector algorithm. :

Member Function Documentation

detect()

void cv::cuda::HoughLinesDetector::detect(
InputArray src,
OutputArray lines,
Stream & stream = Stream::Null() )

Finds lines in a binary image using the classical Hough transform.

See also

HoughLines

Parameters

• src — 8-bit, single-channel binary source image.

• lines — Output vector of lines. Each line is represented by a two-element vector \((\rho, \theta)\) . \(\rho\) is the distance from the coordinate origin \((0,0)\) (top-left corner of the image). \(\theta\) is the line rotation angle in radians ( \(0 \sim \textrm{vertical line}, \pi/2 \sim \textrm{horizontal line}\) ).

• stream — Stream for the asynchronous version.

downloadResults()

void cv::cuda::HoughLinesDetector::downloadResults(
InputArray d_lines,
OutputArray h_lines,
OutputArray h_votes = noArray(),
Stream & stream = Stream::Null() )

Downloads results from cuda::HoughLinesDetector::detect to host memory.

Parameters

• d_lines — Result of cuda::HoughLinesDetector::detect .

• h_lines — Output host array.

• h_votes — Optional output array for line’s votes.

• stream — Stream for the asynchronous version.

Here is the call graph for this function:

getDoSort()

bool cv::cuda::HoughLinesDetector::getDoSort()

getMaxLines()

int cv::cuda::HoughLinesDetector::getMaxLines()

getRho()

float cv::cuda::HoughLinesDetector::getRho()

getTheta()

float cv::cuda::HoughLinesDetector::getTheta()

getThreshold()

int cv::cuda::HoughLinesDetector::getThreshold()

setDoSort()

void cv::cuda::HoughLinesDetector::setDoSort(bool doSort)

setMaxLines()

void cv::cuda::HoughLinesDetector::setMaxLines(int maxLines)

setRho()

void cv::cuda::HoughLinesDetector::setRho(float rho)

setTheta()

void cv::cuda::HoughLinesDetector::setTheta(float theta)

setThreshold()

void cv::cuda::HoughLinesDetector::setThreshold(int threshold)

Source file

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

• opencv2/cudaimgproc.hpp