Template class for a 4-element vector derived from Vec. More...

#include <opencv2/core/types.hpp>

Collaboration diagram for cv::Scalar_< _Tp >:

Public Member Functions
	Scalar_ ()
	default constructor

	Scalar_ (_Tp v0)

	Scalar_ (_Tp v0, _Tp v1, _Tp v2=0, _Tp v3=0)

	Scalar_ (const Scalar_ &s)

template<typename _Tp2 , int cn>
	Scalar_ (const Vec< _Tp2, cn > &v)

	Scalar_ (Scalar_ &&s) CV_NOEXCEPT

Scalar_< _Tp >	conj () const
	returns (v0, -v1, -v2, -v3)

bool	isReal () const
	returns true iff v1 == v2 == v3 == 0

Scalar_< _Tp >	mul (const Scalar_< _Tp > &a, double scale=1) const
	per-element product

template<typename T2 >
	operator Scalar_< T2 > () const
	conversion to another data type

Scalar_ &	operator= (const Scalar_ &s)

Scalar_ &	operator= (Scalar_ &&s) CV_NOEXCEPT

Public Member Functions inherited from cv::Vec< _Tp, 4 >
	Vec ()
	default constructor

	Vec (_Tp v0)
	1-element vector constructor

	Vec (_Tp v0, _Tp v1)
	2-element vector constructor

	Vec (_Tp v0, _Tp v1, _Tp v2)
	3-element vector constructor

	Vec (_Tp v0, _Tp v1, _Tp v2, _Tp v3)
	4-element vector constructor

	Vec (_Tp v0, _Tp v1, _Tp v2, _Tp v3, _Tp v4)
	5-element vector constructor

	Vec (_Tp v0, _Tp v1, _Tp v2, _Tp v3, _Tp v4, _Tp v5)
	6-element vector constructor

	Vec (_Tp v0, _Tp v1, _Tp v2, _Tp v3, _Tp v4, _Tp v5, _Tp v6)
	7-element vector constructor

	Vec (_Tp v0, _Tp v1, _Tp v2, _Tp v3, _Tp v4, _Tp v5, _Tp v6, _Tp v7)
	8-element vector constructor

	Vec (_Tp v0, _Tp v1, _Tp v2, _Tp v3, _Tp v4, _Tp v5, _Tp v6, _Tp v7, _Tp v8)
	9-element vector constructor

	Vec (_Tp v0, _Tp v1, _Tp v2, _Tp v3, _Tp v4, _Tp v5, _Tp v6, _Tp v7, _Tp v8, _Tp v9)
	10-element vector constructor

	Vec (_Tp v0, _Tp v1, _Tp v2, _Tp v3, _Tp v4, _Tp v5, _Tp v6, _Tp v7, _Tp v8, _Tp v9, _Tp v10, _Tp v11, _Tp v12, _Tp v13)
	14-element vector constructor

	Vec (const _Tp *values)

	Vec (const Matx< _Tp, cn, 1 > &a, _T2 alpha, Matx_ScaleOp)

	Vec (const Matx< _Tp, cn, 1 > &a, const Matx< _Tp, cn, 1 > &b, Matx_AddOp)

	Vec (const Matx< _Tp, cn, 1 > &a, const Matx< _Tp, cn, 1 > &b, Matx_SubOp)

	Vec (const Vec< _Tp, cn > &v)

	Vec (std::initializer_list< _Tp >)

Vec	conj () const
	conjugation (makes sense for complex numbers and quaternions)

Vec	cross (const Vec &v) const

Vec	mul (const Vec< _Tp, cn > &v) const
	per-element multiplication

	operator Vec< T2, cn > () const
	conversion to another data type

_Tp &	operator() (int i)

const _Tp &	operator() (int i) const

Vec< _Tp, cn > &	operator= (const Vec< _Tp, cn > &rhs)=default

_Tp &	operator[] (int i)

const _Tp &	operator[] (int i) const

Public Member Functions inherited from cv::Matx< _Tp, cn, 1 >
	Matx ()
	default constructor

	Matx (_Tp v0)
	1x1 matrix

	Matx (_Tp v0, _Tp v1)
	1x2 or 2x1 matrix

	Matx (_Tp v0, _Tp v1, _Tp v2)
	1x3 or 3x1 matrix

	Matx (_Tp v0, _Tp v1, _Tp v2, _Tp v3)
	1x4, 2x2 or 4x1 matrix

	Matx (_Tp v0, _Tp v1, _Tp v2, _Tp v3, _Tp v4)
	1x5 or 5x1 matrix

	Matx (_Tp v0, _Tp v1, _Tp v2, _Tp v3, _Tp v4, _Tp v5)
	1x6, 2x3, 3x2 or 6x1 matrix

	Matx (_Tp v0, _Tp v1, _Tp v2, _Tp v3, _Tp v4, _Tp v5, _Tp v6)
	1x7 or 7x1 matrix

	Matx (_Tp v0, _Tp v1, _Tp v2, _Tp v3, _Tp v4, _Tp v5, _Tp v6, _Tp v7)
	1x8, 2x4, 4x2 or 8x1 matrix

	Matx (_Tp v0, _Tp v1, _Tp v2, _Tp v3, _Tp v4, _Tp v5, _Tp v6, _Tp v7, _Tp v8)
	1x9, 3x3 or 9x1 matrix

	Matx (_Tp v0, _Tp v1, _Tp v2, _Tp v3, _Tp v4, _Tp v5, _Tp v6, _Tp v7, _Tp v8, _Tp v9)
	1x10, 2x5 or 5x2 or 10x1 matrix

	Matx (_Tp v0, _Tp v1, _Tp v2, _Tp v3, _Tp v4, _Tp v5, _Tp v6, _Tp v7, _Tp v8, _Tp v9, _Tp v10, _Tp v11)
	1x12, 2x6, 3x4, 4x3, 6x2 or 12x1 matrix

	Matx (_Tp v0, _Tp v1, _Tp v2, _Tp v3, _Tp v4, _Tp v5, _Tp v6, _Tp v7, _Tp v8, _Tp v9, _Tp v10, _Tp v11, _Tp v12, _Tp v13)
	1x14, 2x7, 7x2 or 14x1 matrix

	Matx (_Tp v0, _Tp v1, _Tp v2, _Tp v3, _Tp v4, _Tp v5, _Tp v6, _Tp v7, _Tp v8, _Tp v9, _Tp v10, _Tp v11, _Tp v12, _Tp v13, _Tp v14, _Tp v15)
	1x16, 4x4 or 16x1 matrix

	Matx (const _Tp *vals)
	initialize from a plain array

	Matx (const Matx< _Tp, m, l > &a, const Matx< _Tp, l, n > &b, Matx_MatMulOp)

	Matx (const Matx< _Tp, m, n > &a, _T2 alpha, Matx_ScaleOp)

	Matx (const Matx< _Tp, m, n > &a, const Matx< _Tp, m, n > &b, Matx_AddOp)

	Matx (const Matx< _Tp, m, n > &a, const Matx< _Tp, m, n > &b, Matx_DivOp)

	Matx (const Matx< _Tp, m, n > &a, const Matx< _Tp, m, n > &b, Matx_MulOp)

	Matx (const Matx< _Tp, m, n > &a, const Matx< _Tp, m, n > &b, Matx_SubOp)

	Matx (const Matx< _Tp, n, m > &a, Matx_TOp)

	Matx (std::initializer_list< _Tp >)
	initialize from an initializer list

Matx< _Tp, m, 1 >	col (int i) const
	extract the matrix column

void	convertTo (const _OutputArray &dst, int type, double scale=1., double shift=0.) const

void	copyTo (const _OutputArray &dst) const
	copy & convert

double	ddot (const Matx< _Tp, m, n > &v) const
	dot product computed in double-precision arithmetics

diag_type	diag () const
	extract the matrix diagonal

Matx< _Tp, m, n >	div (const Matx< _Tp, m, n > &a) const
	divide two matrices element-wise

_Tp	dot (const Matx< _Tp, m, n > &v) const
	dot product computed with the default precision

Matx< _Tp, m1, n1 >	get_minor (int base_row, int base_col) const
	extract part of the matrix

Matx< _Tp, n, m >	inv (int method=DECOMP_LU, bool *p_is_ok=NULL) const
	invert the matrix

Matx< _Tp, m, n >	mul (const Matx< _Tp, m, n > &a) const
	multiply two matrices element-wise

	operator Matx< T2, m, n > () const
	conversion to another data type

_Tp &	operator() (int i)

const _Tp &	operator() (int i) const
	1D element access

_Tp &	operator() (int row, int col)

const _Tp &	operator() (int row, int col) const
	element access

Matx< _Tp, m1, n1 >	reshape () const
	change the matrix shape

Matx< _Tp, 1, n >	row (int i) const
	extract the matrix row

Matx< _Tp, n, l >	solve (const Matx< _Tp, m, l > &rhs, int flags=DECOMP_LU) const
	solve linear system

Vec< _Tp, n >	solve (const Vec< _Tp, m > &rhs, int method) const

Matx< _Tp, n, m >	t () const
	transpose the matrix

Static Public Member Functions
static Scalar_< _Tp >	all (_Tp v0)
	returns a scalar with all elements set to v0

Static Public Member Functions inherited from cv::Vec< _Tp, 4 >
static Vec	all (_Tp alpha)

static Vec	diag (_Tp alpha)=delete

static Vec	eye ()=delete

static Vec	ones ()

static Vec	randn (_Tp a, _Tp b)

static Vec	randu (_Tp a, _Tp b)

static Vec	zeros ()

Static Public Member Functions inherited from cv::Matx< _Tp, cn, 1 >
static CV_NODISCARD_STD Matx	all (_Tp alpha)

static CV_NODISCARD_STD Matx	diag (const diag_type &d)

static CV_NODISCARD_STD Matx	eye ()

static CV_NODISCARD_STD Matx	ones ()

static CV_NODISCARD_STD Matx	randn (_Tp a, _Tp b)
	Generates normally distributed random numbers.

static CV_NODISCARD_STD Matx	randu (_Tp a, _Tp b)
	Generates uniformly distributed random numbers.

static CV_NODISCARD_STD Matx	zeros ()

Additional Inherited Members
Public Types inherited from cv::Vec< _Tp, 4 >
enum

typedef _Tp	value_type

Public Types inherited from cv::Matx< _Tp, cn, 1 >
enum

typedef Matx< _Tp, shortdim, 1 >	diag_type

typedef Matx< _Tp, m, n >	mat_type

typedef _Tp	value_type

Public Attributes inherited from cv::Matx< _Tp, cn, 1 >
_Tp	val [m *n]
	matrix elements

Detailed Description

template<typename _Tp>
class cv::Scalar_< _Tp >

Template class for a 4-element vector derived from Vec.

Being derived from Vec<_Tp, 4> , Scalar_ and Scalar can be used just as typical 4-element vectors. In addition, they can be converted to/from CvScalar . The type Scalar is widely used in OpenCV to pass pixel values.

Constructor & Destructor Documentation

◆ Scalar_() [1/6]

template<typename _Tp >

cv::Scalar_< _Tp >::Scalar_ ( )

default constructor

◆ Scalar_() [2/6]

template<typename _Tp >

cv::Scalar_< _Tp >::Scalar_	(	_Tp	v0,
		_Tp	v1,
		_Tp	v2 = `0`,
		_Tp	v3 = `0`
	)

◆ Scalar_() [3/6]

template<typename _Tp >

cv::Scalar_< _Tp >::Scalar_ ( _Tp v0 )

◆ Scalar_() [4/6]

template<typename _Tp >

cv::Scalar_< _Tp >::Scalar_ ( const Scalar_< _Tp > & s )

◆ Scalar_() [5/6]

template<typename _Tp >

cv::Scalar_< _Tp >::Scalar_ ( Scalar_< _Tp > && s )

◆ Scalar_() [6/6]

template<typename _Tp >

template<typename _Tp2 , int cn>

cv::Scalar_< _Tp >::Scalar_ ( const Vec< _Tp2, cn > & v )

Member Function Documentation

◆ all()

template<typename _Tp >

static Scalar_< _Tp > cv::Scalar_< _Tp >::all ( _Tp v0 )

static

returns a scalar with all elements set to v0

◆ conj()

template<typename _Tp >

Scalar_< _Tp > cv::Scalar_< _Tp >::conj ( ) const

returns (v0, -v1, -v2, -v3)

◆ isReal()

template<typename _Tp >

bool cv::Scalar_< _Tp >::isReal ( ) const

returns true iff v1 == v2 == v3 == 0

◆ mul()

template<typename _Tp >

Scalar_< _Tp > cv::Scalar_< _Tp >::mul	(	const Scalar_< _Tp > &	a,
		double	scale = `1`
	)		const

per-element product

◆ operator Scalar_< T2 >()

template<typename _Tp >

template<typename T2 >

cv::Scalar_< _Tp >::operator Scalar_< T2 > ( ) const

conversion to another data type

◆ operator=() [1/2]

template<typename _Tp >

Scalar_ & cv::Scalar_< _Tp >::operator= ( const Scalar_< _Tp > & s )

◆ operator=() [2/2]

template<typename _Tp >

Scalar_ & cv::Scalar_< _Tp >::operator= ( Scalar_< _Tp > && s )

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

opencv2/core/types.hpp

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ Scalar_() [1/6]

◆ Scalar_() [2/6]

◆ Scalar_() [3/6]

◆ Scalar_() [4/6]

◆ Scalar_() [5/6]

◆ Scalar_() [6/6]

Member Function Documentation

◆ all()

◆ conj()

◆ isReal()

◆ mul()

◆ operator Scalar_< T2 >()

◆ operator=() [1/2]

◆ operator=() [2/2]