cv::quality::QualitySSIM Class Reference

Full reference structural similarity algorithm https://en.wikipedia.org/wiki/Structural_similarity. More...

#include <opencv2/quality/qualityssim.hpp>

Inheritance diagram for cv::quality::QualitySSIM:

Classes
struct	_mat_data

Public Member Functions
void	clear () CV_OVERRIDE
	Implements Algorithm::clear()
cv::Scalar	compute (InputArray cmp) CV_OVERRIDE
	Computes SSIM.
bool	empty () const CV_OVERRIDE
	Implements Algorithm::empty()
Public Member Functions inherited from cv::quality::QualityBase
virtual	~QualityBase ()=default
	Destructor.
void	clear () CV_OVERRIDE
	Implements Algorithm::clear()
virtual cv::Scalar	compute (InputArray img)=0
	Compute quality score per channel with the per-channel score in each element of the resulting cv::Scalar. See specific algorithm for interpreting result scores.
bool	empty () const CV_OVERRIDE
	Implements Algorithm::empty()
virtual void	getQualityMap (OutputArray dst) const
	Returns output quality map that was generated during computation, if supported by the algorithm
Public Member Functions inherited from cv::Algorithm
	Algorithm ()
virtual	~Algorithm ()
virtual void	clear ()
	Clears the algorithm state.
virtual bool	empty () const
	Returns true if the Algorithm is empty (e.g. in the very beginning or after unsuccessful read.
virtual String	getDefaultName () const
virtual void	read (const FileNode &fn)
	Reads algorithm parameters from a file storage.
virtual void	save (const String &filename) const
void	write (const Ptr< FileStorage > &fs, const String &name=String()) const
virtual void	write (FileStorage &fs) const
	Stores algorithm parameters in a file storage.
void	write (FileStorage &fs, const String &name) const

Static Public Member Functions
static cv::Scalar	compute (InputArray ref, InputArray cmp, OutputArray qualityMap)
	static method for computing quality
static Ptr< QualitySSIM >	create (InputArray ref)
	Create an object which calculates quality.
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.
template<typename _Tp >
static Ptr< _Tp >	loadFromString (const String &strModel, const String &objname=String())
	Loads algorithm from a String.
template<typename _Tp >
static Ptr< _Tp >	read (const FileNode &fn)
	Reads algorithm from the file node.

Protected Member Functions
	QualitySSIM (_mat_data refImgData)
	Constructor.
Protected Member Functions inherited from cv::Algorithm
void	writeFormat (FileStorage &fs) const

Protected Attributes
_mat_data	_refImgData
	Reference image data.
Protected Attributes inherited from cv::quality::QualityBase
_mat_type	_qualityMap
	Output quality maps if generated by algorithm.

Additional Inherited Members
Protected Types inherited from cv::quality::QualityBase
using	_mat_type = cv::UMat
	internal mat type default

Detailed Description

Full reference structural similarity algorithm https://en.wikipedia.org/wiki/Structural_similarity.

Constructor & Destructor Documentation

QualitySSIM()

cv::quality::QualitySSIM::QualitySSIM ( _mat_data  refImgData )

inlineprotected

Constructor.

Parameters

refImgData

reference image, converted to internal type

Member Function Documentation

clear()

void cv::quality::QualitySSIM::clear ( )

inlinevirtual

Implements Algorithm::clear()

Reimplemented from cv::quality::QualityBase.

compute() [1/2]

cv::Scalar cv::quality::QualitySSIM::compute ( InputArray  cmp )

virtual

Computes SSIM.

Parameters

cmp	Comparison image

Returns

cv::Scalar with per-channel quality values. Values range from 0 (worst) to 1 (best)

Implements cv::quality::QualityBase.

compute() [2/2]

static cv::Scalar cv::quality::QualitySSIM::compute ( InputArray  ref, InputArray  cmp, OutputArray  qualityMap  )

static

static method for computing quality

Parameters

ref	reference image
cmp	comparison image
qualityMap	output quality map, or cv::noArray()

Returns

cv::Scalar with per-channel quality values. Values range from 0 (worst) to 1 (best)

create()

static Ptr< QualitySSIM > cv::quality::QualitySSIM::create ( InputArray  ref )

static

Create an object which calculates quality.

Parameters

ref	input image to use as the reference image for comparison

empty()

bool cv::quality::QualitySSIM::empty ( ) const

inlinevirtual

Implements Algorithm::empty()

Reimplemented from cv::quality::QualityBase.

Member Data Documentation

_refImgData

_mat_data cv::quality::QualitySSIM::_refImgData

protected

Reference image data.

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

• opencv2/quality/qualityssim.hpp