cv::img_hash::ImgHashBase Class Reference

The base class for image hash algorithms. More...

#include "img_hash_base.hpp"

Inheritance diagram for cv::img_hash::ImgHashBase:

Public Member Functions
	~ImgHashBase ()
double	compare (cv::InputArray hashOne, cv::InputArray hashTwo) const
	Compare the hash value between inOne and inTwo. More...
void	compute (cv::InputArray inputArr, cv::OutputArray outputArr)
	Computes hash of the input image. More...
Public Member Functions inherited from cv::Algorithm
	Algorithm ()
virtual	~Algorithm ()
virtual void	clear ()
	Clears the algorithm state. More...
virtual bool	empty () const
	Returns true if the Algorithm is empty (e.g. in the very beginning or after unsuccessful read. More...
virtual String	getDefaultName () const
virtual void	read (const FileNode &fn)
	Reads algorithm parameters from a file storage. More...
virtual void	save (const String &filename) const
virtual void	write (FileStorage &fs) const
	Stores algorithm parameters in a file storage. More...
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...

Protected Member Functions
	ImgHashBase ()
Protected Member Functions inherited from cv::Algorithm
void	writeFormat (FileStorage &fs) const

Protected Attributes
Ptr< ImgHashImpl >	pImpl

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...

Detailed Description

The base class for image hash algorithms.

Constructor & Destructor Documentation

~ImgHashBase()

cv::img_hash::ImgHashBase::~ImgHashBase

(

)

ImgHashBase()

cv::img_hash::ImgHashBase::ImgHashBase ( )

protected

Member Function Documentation

compare()

double cv::img_hash::ImgHashBase::compare	(	cv::InputArray	hashOne,
		cv::InputArray	hashTwo
	)		const

Python:
	retval	=	cv.img_hash_ImgHashBase.compare(	hashOne, hashTwo	)

Compare the hash value between inOne and inTwo.

Parameters

hashOne	Hash value one
hashTwo	Hash value two

Returns

value indicate similarity between inOne and inTwo, the meaning of the value vary from algorithms to algorithms

compute()

void cv::img_hash::ImgHashBase::compute	(	cv::InputArray	inputArr,
		cv::OutputArray	outputArr
	)

Python:
	outputArr	=	cv.img_hash_ImgHashBase.compute(	inputArr[, outputArr]	)

Computes hash of the input image.

Parameters

inputArr	input image want to compute hash value
outputArr	hash of the image

Member Data Documentation

pImpl

Ptr<ImgHashImpl> cv::img_hash::ImgHashBase::pImpl

protected

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

• /build/3_4-contrib_docs-lin64/opencv_contrib/modules/img_hash/include/opencv2/img_hash/img_hash_base.hpp