Class cv::text::ERFilter#

Base class for 1st and 2nd stages of Neumann and Matas scene text detection algorithm [228]. : View details

#include <opencv2/text/erfilter.hpp>

Collaboration diagram for cv::text::ERFilter:

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#

Detailed Description#

Base class for 1st and 2nd stages of Neumann and Matas scene text detection algorithm Neumann12. :

Extracts the component tree (if needed) and filter the extremal regions (ER’s) by using a given classifier.

Member Function Documentation#

getNumRejected()#

int cv::text::ERFilter::getNumRejected()

run()#

void cv::text::ERFilter::run(
InputArray image,
std::vector< ERStat > & regions )

The key method of ERFilter algorithm.

Takes image on input and returns the selected regions in a vector of ERStat only distinctive ERs which correspond to characters are selected by a sequential classifier

Extracts the component tree (if needed) and filter the extremal regions (ER’s) by using a given classifier.

Parameters

image — Single channel image CV_8UC1
regions — Output for the 1st stage and Input/Output for the 2nd. The selected Extremal Regions are stored here.

setCallback()#

void cv::text::ERFilter::setCallback(const Ptr< ERFilter::Callback > & cb)

set/get methods to set the algorithm properties,

setMaxArea()#

void cv::text::ERFilter::setMaxArea(float maxArea)

setMinArea()#

void cv::text::ERFilter::setMinArea(float minArea)

setMinProbability()#

void cv::text::ERFilter::setMinProbability(float minProbability)

setMinProbabilityDiff()#

void cv::text::ERFilter::setMinProbabilityDiff(float minProbabilityDiff)

setNonMaxSuppression()#

void cv::text::ERFilter::setNonMaxSuppression(bool nonMaxSuppression)

setThresholdDelta()#

void cv::text::ERFilter::setThresholdDelta(int thresholdDelta)

Source file#

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

opencv2/text/erfilter.hpp