cv::Scalar_< _Tp > Class Template Reference

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

#include <types.hpp>

Inheritance diagram for cv::Scalar_< _Tp >:

Public Member Functions
	Scalar_ ()
	default constructor More...
	Scalar_ (_Tp v0, _Tp v1, _Tp v2=0, _Tp v3=0)
	Scalar_ (_Tp v0)
	Scalar_ (const Scalar_ &s)
	Scalar_ (Scalar_ &&s) CV_NOEXCEPT
Scalar_ &	operator= (const Scalar_ &s)
Scalar_ &	operator= (Scalar_ &&s) CV_NOEXCEPT
template<typename _Tp2 , int cn>
	Scalar_ (const Vec< _Tp2, cn > &v)
template<typename T2 >
	operator Scalar_< T2 > () const
	conversion to another data type More...
Scalar_< _Tp >	mul (const Scalar_< _Tp > &a, double scale=1) const
	per-element product More...
Scalar_< _Tp >	conj () const
	returns (v0, -v1, -v2, -v3) More...
bool	isReal () const
	returns true iff v1 == v2 == v3 == 0 More...
Public Member Functions inherited from cv::Vec< _Tp, 4 >
	Vec ()
	default constructor More...
	Vec (_Tp v0)
	1-element vector constructor More...
	Vec (_Tp v0, _Tp v1)
	2-element vector constructor More...
	Vec (_Tp v0, _Tp v1, _Tp v2)
	3-element vector constructor More...
	Vec (_Tp v0, _Tp v1, _Tp v2, _Tp v3)
	4-element vector constructor More...
	Vec (_Tp v0, _Tp v1, _Tp v2, _Tp v3, _Tp v4)
	5-element vector constructor More...
	Vec (_Tp v0, _Tp v1, _Tp v2, _Tp v3, _Tp v4, _Tp v5)
	6-element vector constructor More...
	Vec (_Tp v0, _Tp v1, _Tp v2, _Tp v3, _Tp v4, _Tp v5, _Tp v6)
	7-element vector constructor More...
	Vec (_Tp v0, _Tp v1, _Tp v2, _Tp v3, _Tp v4, _Tp v5, _Tp v6, _Tp v7)
	8-element vector constructor More...
	Vec (_Tp v0, _Tp v1, _Tp v2, _Tp v3, _Tp v4, _Tp v5, _Tp v6, _Tp v7, _Tp v8)
	9-element vector constructor More...
	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 More...
	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 More...
	Vec (const _Tp *values)
	Vec (std::initializer_list< _Tp >)
	Vec (const Vec< _Tp, cn > &v)
	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 Matx< _Tp, cn, 1 > &a, _T2 alpha, Matx_ScaleOp)
Vec	mul (const Vec< _Tp, cn > &v) const
	per-element multiplication More...
Vec	conj () const
	conjugation (makes sense for complex numbers and quaternions) More...
Vec< float, 2 >	conj () const
Vec< double, 2 >	conj () const
Vec< float, 4 >	conj () const
Vec< double, 4 >	conj () const
Vec	cross (const Vec &v) const
Vec< float, 3 >	cross (const Vec< float, 3 > &v) const
Vec< double, 3 >	cross (const Vec< double, 3 > &v) const
	operator Vec< T2, cn > () const
	conversion to another data type More...
const _Tp &	operator[] (int i) const
_Tp &	operator[] (int i)
const _Tp &	operator() (int i) const
_Tp &	operator() (int i)
Vec< _Tp, cn > &	operator= (const Vec< _Tp, cn > &rhs)=default
Public Member Functions inherited from cv::Matx< _Tp, cn, 1 >
	Matx ()
	default constructor More...
	Matx (_Tp v0)
	1x1 matrix More...
	Matx (_Tp v0, _Tp v1)
	1x2 or 2x1 matrix More...
	Matx (_Tp v0, _Tp v1, _Tp v2)
	1x3 or 3x1 matrix More...
	Matx (_Tp v0, _Tp v1, _Tp v2, _Tp v3)
	1x4, 2x2 or 4x1 matrix More...
	Matx (_Tp v0, _Tp v1, _Tp v2, _Tp v3, _Tp v4)
	1x5 or 5x1 matrix More...
	Matx (_Tp v0, _Tp v1, _Tp v2, _Tp v3, _Tp v4, _Tp v5)
	1x6, 2x3, 3x2 or 6x1 matrix More...
	Matx (_Tp v0, _Tp v1, _Tp v2, _Tp v3, _Tp v4, _Tp v5, _Tp v6)
	1x7 or 7x1 matrix More...
	Matx (_Tp v0, _Tp v1, _Tp v2, _Tp v3, _Tp v4, _Tp v5, _Tp v6, _Tp v7)
	1x8, 2x4, 4x2 or 8x1 matrix More...
	Matx (_Tp v0, _Tp v1, _Tp v2, _Tp v3, _Tp v4, _Tp v5, _Tp v6, _Tp v7, _Tp v8)
	1x9, 3x3 or 9x1 matrix More...
	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 More...
	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 More...
	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 More...
	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 More...
	Matx (const _Tp *vals)
	initialize from a plain array More...
	Matx (std::initializer_list< _Tp >)
	initialize from an initializer list More...
	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_SubOp)
	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_MulOp)
	Matx (const Matx< _Tp, m, n > &a, const Matx< _Tp, m, n > &b, Matx_DivOp)
	Matx (const Matx< _Tp, m, l > &a, const Matx< _Tp, l, n > &b, Matx_MatMulOp)
	Matx (const Matx< _Tp, n, m > &a, Matx_TOp)
diag_type	diag () const
	extract the matrix diagonal More...
_Tp	dot (const Matx< _Tp, m, n > &v) const
	dot product computed with the default precision More...
double	ddot (const Matx< _Tp, m, n > &v) const
	dot product computed in double-precision arithmetics More...
	operator Matx< T2, m, n > () const
	conversion to another data type More...
Matx< _Tp, m1, n1 >	reshape () const
	change the matrix shape More...
Matx< _Tp, m1, n1 >	get_minor (int base_row, int base_col) const
	extract part of the matrix More...
Matx< _Tp, 1, n >	row (int i) const
	extract the matrix row More...
Matx< _Tp, m, 1 >	col (int i) const
	extract the matrix column More...
Matx< _Tp, n, m >	t () const
	transpose the matrix More...
Matx< _Tp, n, m >	inv (int method=DECOMP_LU, bool *p_is_ok=NULL) const
	invert the matrix More...
Matx< _Tp, n, l >	solve (const Matx< _Tp, m, l > &rhs, int flags=DECOMP_LU) const
	solve linear system More...
Vec< _Tp, n >	solve (const Vec< _Tp, m > &rhs, int method) const
Matx< _Tp, m, n >	mul (const Matx< _Tp, m, n > &a) const
	multiply two matrices element-wise More...
Matx< _Tp, m, n >	div (const Matx< _Tp, m, n > &a) const
	divide two matrices element-wise More...
const _Tp &	operator() (int row, int col) const
	element access More...
_Tp &	operator() (int row, int col)
const _Tp &	operator() (int i) const
	1D element access More...
_Tp &	operator() (int i)

Static Public Member Functions
static Scalar_< _Tp >	all (_Tp v0)
	returns a scalar with all elements set to v0 More...
Static Public Member Functions inherited from cv::Vec< _Tp, 4 >
static Vec	all (_Tp alpha)
static Vec	ones ()
static Vec	randn (_Tp a, _Tp b)
static Vec	randu (_Tp a, _Tp b)
static Vec	zeros ()
static Vec	diag (_Tp alpha)=delete
static Vec	eye ()=delete
Static Public Member Functions inherited from cv::Matx< _Tp, cn, 1 >
static CV_NODISCARD_STD Matx	all (_Tp alpha)
static CV_NODISCARD_STD Matx	zeros ()
static CV_NODISCARD_STD Matx	ones ()
static CV_NODISCARD_STD Matx	eye ()
static CV_NODISCARD_STD Matx	diag (const diag_type &d)
static CV_NODISCARD_STD Matx	randu (_Tp a, _Tp b)
	Generates uniformly distributed random numbers. More...
static CV_NODISCARD_STD Matx	randn (_Tp a, _Tp b)
	Generates normally distributed random numbers. More...

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 _Tp	value_type
typedef Matx< _Tp, m, n >	mat_type
typedef Matx< _Tp, shortdim, 1 >	diag_type
Public Attributes inherited from cv::Matx< _Tp, cn, 1 >
_Tp	val [m *n]
	matrix elements More...

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:

• build/release/_deps/opencv-src/include/opencv4/opencv2/core/types.hpp