org.opencv.core

Class Scalar

java.lang.Object

org.opencv.core.Scalar

public class Scalar
extends java.lang.Object

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

template class CV_EXPORTS Scalar_ : public Vec<_Tp, 4>

// C++ code:

public:

//! various constructors

Scalar_();

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

Scalar_(const CvScalar& s);

Scalar_(_Tp v0);

//! returns a scalar with all elements set to v0

static Scalar_<_Tp> all(_Tp v0);

//! conversion to the old-style CvScalar

operator CvScalar() const;

//! conversion to another data type

template operator Scalar_() const;

//! per-element product

Scalar_<_Tp> mul(const Scalar_<_Tp>& t, double scale=1) const;

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

Scalar_<_Tp> conj() const;

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

bool isReal() const;

};

typedef Scalar_ Scalar;

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.

See Also:

org.opencv.core.Scalar_

Field Summary

Fields

Modifier and Type	Field and Description
double[]	val

Constructor Summary

Constructors

Constructor and Description
Scalar(double v0)
Scalar(double[] vals)
Scalar(double v0, double v1)
Scalar(double v0, double v1, double v2)
Scalar(double v0, double v1, double v2, double v3)

Method Summary

Methods

Modifier and Type	Method and Description
static Scalar	all(double v)
Scalar	clone()
Scalar	conj()
boolean	equals(java.lang.Object obj)
int	hashCode()
boolean	isReal()
Scalar	mul(Scalar it)
Scalar	mul(Scalar it, double scale)
void	set(double[] vals)
java.lang.String	toString()

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Field Detail

val

public double[] val

Constructor Detail

Scalar

public Scalar(double v0)

Scalar

public Scalar(double[] vals)

Scalar

public Scalar(double v0,
      double v1)

Scalar

public Scalar(double v0,
      double v1,
      double v2)

Scalar

public Scalar(double v0,
      double v1,
      double v2,
      double v3)

Method Detail

all

public static Scalar all(double v)

clone

public Scalar clone()

Overrides:

clone in class java.lang.Object

conj

public Scalar conj()

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

isReal

public boolean isReal()

mul

public Scalar mul(Scalar it)

mul

public Scalar mul(Scalar it,
         double scale)

set

public void set(double[] vals)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object