Class MatExpr

Matrix expression

Inheritance

System.Object

DisposableObject

DisposableCvObject

MatExpr

Implements

ICvPtrHolder

Inherited Members

DisposableCvObject.ptr

DisposableCvObject.CvPtr

DisposableObject.DataHandle

DisposableObject.IsDisposed

DisposableObject.IsEnabledDispose

DisposableObject.AllocatedMemory

DisposableObject.AllocatedMemorySize

DisposableObject.Dispose()

DisposableObject.Dispose(Boolean)

DisposableObject.DisposeManaged()

DisposableObject.AllocGCHandle(Object)

DisposableObject.AllocMemory(Int32)

DisposableObject.NotifyMemoryPressure(Int64)

DisposableObject.ThrowIfDisposed()

Namespace: OpenCvSharp

Assembly: OpenCvSharp.dll

Syntax

public sealed class MatExpr : DisposableCvObject, ICvPtrHolder

Properties

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Item[Range, Range]

Extracts a rectangular submatrix.

Declaration

public MatExpr this[Range rowRange, Range colRange] { get; }

Parameters

Type	Name	Description
OpenCvSharp.Range	rowRange
OpenCvSharp.Range	colRange

Property Value

Type	Description
MatExpr

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Item[Rect]

Extracts a rectangular submatrix.

Declaration

public MatExpr this[Rect roi] { get; }

Parameters

Type	Name	Description
OpenCvSharp.Rect	roi

Property Value

Type	Description
MatExpr

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Item[Int32, Int32, Int32, Int32]

Extracts a rectangular submatrix.

Declaration

public MatExpr this[int rowStart, int rowEnd, int colStart, int colEnd] { get; }

Parameters

Type	Name	Description
System.Int32	rowStart
System.Int32	rowEnd
System.Int32	colStart
System.Int32	colEnd

Property Value

Type	Description
MatExpr

Methods

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Abs()

Computes absolute value of each matrix element

Declaration

public MatExpr Abs()

Returns

Type	Description
MatExpr

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Add(Mat)

Declaration

public MatExpr Add(Mat m)

Parameters

Type	Name	Description
Mat	m

Returns

Type	Description
MatExpr

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Add(MatExpr)

Declaration

public MatExpr Add(MatExpr me)

Parameters

Type	Name	Description
MatExpr	me

Returns

Type	Description
MatExpr

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Add(Scalar)

Declaration

public MatExpr Add(Scalar s)

Parameters

Type	Name	Description
OpenCvSharp.Scalar	s

Returns

Type	Description
MatExpr

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Col(Int32)

Creates a matrix header for the specified matrix column.

Declaration

public MatExpr Col(int x)

Parameters

Type	Name	Description
System.Int32	x	A 0-based column index.

Returns

Type	Description
MatExpr

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Cross(Mat)

Computes a cross-product of two 3-element vectors.

Declaration

public Mat Cross(Mat m)

Parameters

Type	Name	Description
Mat	m	Another cross-product operand.

Returns

Type	Description
Mat

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Diag(MatDiagType)

Extracts a diagonal from a matrix

Declaration

public MatExpr Diag(MatDiagType d = MatDiagType.Main)

Parameters

Type	Name	Description
MatDiagType	d	d index of the diagonal, with the following values: d=0 is the main diagonal. d<0 is a diagonal from the lower half. For example, d=-1 means the diagonal is set immediately below the main one. d>0 is a diagonal from the upper half. For example, d=1 means the diagonal is set immediately above the main one.

Returns

Type	Description
MatExpr

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DisposeUnmanaged()

Releases unmanaged resources

Declaration

protected override void DisposeUnmanaged()

Overrides

DisposableCvObject.DisposeUnmanaged()

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Divide(Mat)

Declaration

public MatExpr Divide(Mat m)

Parameters

Type	Name	Description
Mat	m

Returns

Type	Description
MatExpr

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Divide(MatExpr)

Declaration

public MatExpr Divide(MatExpr me)

Parameters

Type	Name	Description
MatExpr	me

Returns

Type	Description
MatExpr

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Divide(Double)

Declaration

public MatExpr Divide(double s)

Parameters

Type	Name	Description
System.Double	s

Returns

Type	Description
MatExpr

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Dot(Mat)

Computes a dot-product of two vectors.

Declaration

public double Dot(Mat m)

Parameters

Type	Name	Description
Mat	m	another dot-product operand.

Returns

Type	Description
System.Double

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FromMat(Mat)

Convert cv::Mat to cv::MatExpr

Declaration

public static MatExpr FromMat(Mat mat)

Parameters

Type	Name	Description
Mat	mat

Returns

Type	Description
MatExpr

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Inv(DecompTypes)

Inverses a matrix.

Declaration

public MatExpr Inv(DecompTypes method = DecompTypes.LU)

Parameters

Type	Name	Description
DecompTypes	method

Returns

Type	Description
MatExpr

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Mul(Mat, Double)

Performs an element-wise multiplication or division of the two matrices.

Declaration

public MatExpr Mul(Mat m, double scale = 1)

Parameters

Type	Name	Description
Mat	m	Another array of the same type and the same size as this, or a matrix expression.
System.Double	scale	Optional scale factor.

Returns

Type	Description
MatExpr

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Mul(MatExpr, Double)

Performs an element-wise multiplication or division of the two matrices.

Declaration

public MatExpr Mul(MatExpr e, double scale = 1)

Parameters

Type	Name	Description
MatExpr	e	Another array of the same type and the same size as this, or a matrix expression.
System.Double	scale	Optional scale factor.

Returns

Type	Description
MatExpr

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Multiply(Mat)

Declaration

public MatExpr Multiply(Mat m)

Parameters

Type	Name	Description
Mat	m

Returns

Type	Description
MatExpr

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Multiply(MatExpr)

Declaration

public MatExpr Multiply(MatExpr me)

Parameters

Type	Name	Description
MatExpr	me

Returns

Type	Description
MatExpr

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Multiply(Double)

Declaration

public MatExpr Multiply(double s)

Parameters

Type	Name	Description
System.Double	s

Returns

Type	Description
MatExpr

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Negate()

Declaration

public MatExpr Negate()

Returns

Type	Description
MatExpr

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OnesComplement()

Declaration

public MatExpr OnesComplement()

Returns

Type	Description
MatExpr

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Plus()

Declaration

public MatExpr Plus()

Returns

Type	Description
MatExpr

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Row(Int32)

Creates a matrix header for the specified matrix row.

Declaration

public MatExpr Row(int y)

Parameters

Type	Name	Description
System.Int32	y	A 0-based row index.

Returns

Type	Description
MatExpr

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Size()

Returns the size of a matrix element.

Declaration

public Size Size()

Returns

Type	Description
OpenCvSharp.Size

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SubMat(Range, Range)

Extracts a rectangular submatrix.

Declaration

public MatExpr SubMat(Range rowRange, Range colRange)

Parameters

Type	Name	Description
OpenCvSharp.Range	rowRange
OpenCvSharp.Range	colRange

Returns

Type	Description
MatExpr

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SubMat(Rect)

Extracts a rectangular submatrix.

Declaration

public MatExpr SubMat(Rect roi)

Parameters

Type	Name	Description
OpenCvSharp.Rect	roi

Returns

Type	Description
MatExpr

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SubMat(Int32, Int32, Int32, Int32)

Extracts a rectangular submatrix.

Declaration

public MatExpr SubMat(int rowStart, int rowEnd, int colStart, int colEnd)

Parameters

Type	Name	Description
System.Int32	rowStart
System.Int32	rowEnd
System.Int32	colStart
System.Int32	colEnd

Returns

Type	Description
MatExpr

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Subtract(Mat)

Declaration

public MatExpr Subtract(Mat m)

Parameters

Type	Name	Description
Mat	m

Returns

Type	Description
MatExpr

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Subtract(MatExpr)

Declaration

public MatExpr Subtract(MatExpr me)

Parameters

Type	Name	Description
MatExpr	me

Returns

Type	Description
MatExpr

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Subtract(Scalar)

Declaration

public MatExpr Subtract(Scalar s)

Parameters

Type	Name	Description
OpenCvSharp.Scalar	s

Returns

Type	Description
MatExpr

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T()

Transposes a matrix.

Declaration

public MatExpr T()

Returns

Type	Description
MatExpr

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ToMat()

Convert to cv::Mat

Declaration

public Mat ToMat()

Returns

Type	Description
Mat

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Type()

Returns the type of a matrix element.

Declaration

public MatType Type()

Returns

Type	Description
OpenCvSharp.MatType

Operators

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Addition(Mat, MatExpr)

Declaration

public static MatExpr operator +(Mat m, MatExpr e)

Parameters

Type	Name	Description
Mat	m
MatExpr	e

Returns

Type	Description
MatExpr

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Addition(MatExpr, Mat)

Declaration

public static MatExpr operator +(MatExpr e, Mat m)

Parameters

Type	Name	Description
MatExpr	e
Mat	m

Returns

Type	Description
MatExpr

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Addition(MatExpr, MatExpr)

Declaration

public static MatExpr operator +(MatExpr e1, MatExpr e2)

Parameters

Type	Name	Description
MatExpr	e1
MatExpr	e2

Returns

Type	Description
MatExpr

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Addition(MatExpr, Scalar)

Declaration

public static MatExpr operator +(MatExpr e, Scalar s)

Parameters

Type	Name	Description
MatExpr	e
OpenCvSharp.Scalar	s

Returns

Type	Description
MatExpr

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Addition(Scalar, MatExpr)

Declaration

public static MatExpr operator +(Scalar s, MatExpr e)

Parameters

Type	Name	Description
OpenCvSharp.Scalar	s
MatExpr	e

Returns

Type	Description
MatExpr

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Division(Mat, MatExpr)

Declaration

public static MatExpr operator /(Mat m, MatExpr e)

Parameters

Type	Name	Description
Mat	m
MatExpr	e

Returns

Type	Description
MatExpr

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Division(MatExpr, Mat)

Declaration

public static MatExpr operator /(MatExpr e, Mat m)

Parameters

Type	Name	Description
MatExpr	e
Mat	m

Returns

Type	Description
MatExpr

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Division(MatExpr, MatExpr)

Declaration

public static MatExpr operator /(MatExpr e1, MatExpr e2)

Parameters

Type	Name	Description
MatExpr	e1
MatExpr	e2

Returns

Type	Description
MatExpr

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Division(MatExpr, Double)

Declaration

public static MatExpr operator /(MatExpr e, double s)

Parameters

Type	Name	Description
MatExpr	e
System.Double	s

Returns

Type	Description
MatExpr

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Division(Double, MatExpr)

Declaration

public static MatExpr operator /(double s, MatExpr e)

Parameters

Type	Name	Description
System.Double	s
MatExpr	e

Returns

Type	Description
MatExpr

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Implicit(Mat to MatExpr)

Convert cv::Mat to cv::MatExpr

Declaration

public static implicit operator MatExpr(Mat mat)

Parameters

Type	Name	Description
Mat	mat

Returns

Type	Description
MatExpr

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Implicit(MatExpr to Mat)

Convert to cv::Mat

Declaration

public static implicit operator Mat(MatExpr self)

Parameters

Type	Name	Description
MatExpr	self

Returns

Type	Description
Mat

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Multiply(Mat, MatExpr)

Declaration

public static MatExpr operator *(Mat m, MatExpr e)

Parameters

Type	Name	Description
Mat	m
MatExpr	e

Returns

Type	Description
MatExpr

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Multiply(MatExpr, Mat)

Declaration

public static MatExpr operator *(MatExpr e, Mat m)

Parameters

Type	Name	Description
MatExpr	e
Mat	m

Returns

Type	Description
MatExpr

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Multiply(MatExpr, MatExpr)

Declaration

public static MatExpr operator *(MatExpr e1, MatExpr e2)

Parameters

Type	Name	Description
MatExpr	e1
MatExpr	e2

Returns

Type	Description
MatExpr

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Multiply(MatExpr, Double)

Declaration

public static MatExpr operator *(MatExpr e, double s)

Parameters

Type	Name	Description
MatExpr	e
System.Double	s

Returns

Type	Description
MatExpr

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Multiply(Double, MatExpr)

Declaration

public static MatExpr operator *(double s, MatExpr e)

Parameters

Type	Name	Description
System.Double	s
MatExpr	e

Returns

Type	Description
MatExpr

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OnesComplement(MatExpr)

Declaration

public static MatExpr operator ~(MatExpr e)

Parameters

Type	Name	Description
MatExpr	e

Returns

Type	Description
MatExpr

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Subtraction(Mat, MatExpr)

Declaration

public static MatExpr operator -(Mat m, MatExpr e)

Parameters

Type	Name	Description
Mat	m
MatExpr	e

Returns

Type	Description
MatExpr

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Subtraction(MatExpr, Mat)

Declaration

public static MatExpr operator -(MatExpr e, Mat m)

Parameters

Type	Name	Description
MatExpr	e
Mat	m

Returns

Type	Description
MatExpr

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Subtraction(MatExpr, MatExpr)

Declaration

public static MatExpr operator -(MatExpr e1, MatExpr e2)

Parameters

Type	Name	Description
MatExpr	e1
MatExpr	e2

Returns

Type	Description
MatExpr

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Subtraction(MatExpr, Scalar)

Declaration

public static MatExpr operator -(MatExpr e, Scalar s)

Parameters

Type	Name	Description
MatExpr	e
OpenCvSharp.Scalar	s

Returns

Type	Description
MatExpr

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Subtraction(Scalar, MatExpr)

Declaration

public static MatExpr operator -(Scalar s, MatExpr e)

Parameters

Type	Name	Description
OpenCvSharp.Scalar	s
MatExpr	e

Returns

Type	Description
MatExpr

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UnaryNegation(MatExpr)

Declaration

public static MatExpr operator -(MatExpr e)

Parameters

Type	Name	Description
MatExpr	e

Returns

Type	Description
MatExpr

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UnaryPlus(MatExpr)

Declaration

public static MatExpr operator +(MatExpr e)

Parameters

Type	Name	Description
MatExpr	e

Returns

Type	Description
MatExpr

Implements

ICvPtrHolder