Class CvXImgProc.RL

run_length_morphology.hpp

Inheritance

System.Object

CvXImgProc.RL

Inherited Members

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()

Namespace: OpenCvSharp.XImgProc

Assembly: OpenCvSharp.dll

Syntax

public static class RL

Methods

CreateRLEImage(IEnumerable<Point3i>, OutputArray, Nullable<Size>)

Creates a run-length encoded image from a vector of runs (column begin, column end, row)

Declaration

public static void CreateRLEImage(IEnumerable<Point3i> runs, OutputArray res, Size? size = null)

Parameters

Type	Name	Description
IEnumerable<OpenCvSharp.Point3i>	runs	vector of runs
OutputArray	res	result
System.Nullable<OpenCvSharp.Size>	size	image size (to be used if an "on" boundary should be used in erosion, using the default means that the size is computed from the extension of the input)

Dilate(InputArray, OutputArray, InputArray, Nullable<Point>)

Dilates an run-length encoded binary image by using a specific structuring element.

Declaration

public static void Dilate(InputArray rlSrc, OutputArray rlDest, InputArray rlKernel, Point? anchor = null)

Parameters

Type	Name	Description
InputArray	rlSrc	input image
OutputArray	rlDest	result
InputArray	rlKernel	kernel
System.Nullable<OpenCvSharp.Point>	anchor	position of the anchor within the element; default value (0, 0) is usually the element center.

Erode(InputArray, OutputArray, InputArray, Boolean, Nullable<Point>)

Erodes an run-length encoded binary image by using a specific structuring element.

Declaration

public static void Erode(InputArray rlSrc, OutputArray rlDest, InputArray rlKernel, bool bBoundaryOn = true, Point? anchor = null)

Parameters

Type	Name	Description
InputArray	rlSrc	input image
OutputArray	rlDest	result
InputArray	rlKernel	kernel
System.Boolean	bBoundaryOn	indicates whether pixel outside the image boundary are assumed to be on (True: works in the same way as the default of cv::erode, False: is a little faster)
System.Nullable<OpenCvSharp.Point>	anchor	position of the anchor within the element; default value (0, 0) is usually the element center.

GetStructuringElement(MorphShapes, Size)

Returns a run length encoded structuring element of the specified size and shape.

Declaration

public static Mat GetStructuringElement(MorphShapes shape, Size ksize)

Parameters

Type	Name	Description
MorphShapes	shape	Element shape that can be one of cv::MorphShapes
OpenCvSharp.Size	ksize	Size of the structuring element.

Returns

Type	Description
Mat

IsRLMorphologyPossible(InputArray)

Check whether a custom-made structuring element can be used with run length morphological operations. (It must consist of a continuous array of single runs per row)

Declaration

public static bool IsRLMorphologyPossible(InputArray rlStructuringElement)

Parameters

Type	Name	Description
InputArray	rlStructuringElement

Returns

Type	Description
System.Boolean

MorphologyEx(InputArray, OutputArray, MorphTypes, InputArray, Boolean, Nullable<Point>)

Applies a morphological operation to a run-length encoded binary image.

Declaration

public static void MorphologyEx(InputArray rlSrc, OutputArray rlDest, MorphTypes op, InputArray rlKernel, bool bBoundaryOnForErosion = true, Point? anchor = null)

Parameters

Type	Name	Description
InputArray	rlSrc	input image
OutputArray	rlDest	result
MorphTypes	op	all operations supported by cv::morphologyEx (except cv::MORPH_HITMISS)
InputArray	rlKernel	kernel
System.Boolean	bBoundaryOnForErosion	indicates whether pixel outside the image boundary are assumed to be on for erosion operations (True: works in the same way as the default of cv::erode, False: is a little faster)
System.Nullable<OpenCvSharp.Point>	anchor	position of the anchor within the element; default value (0, 0) is usually the element center.

Paint(InputOutputArray, InputArray, Scalar)

Paint run length encoded binary image into an image.

Declaration

public static void Paint(InputOutputArray image, InputArray rlSrc, Scalar value)

Parameters

Type	Name	Description
InputOutputArray	image	image to paint into (currently only single channel images).
InputArray	rlSrc	run length encoded image
OpenCvSharp.Scalar	value	all foreground pixel of the binary image are set to this value

Threshold(InputArray, OutputArray, Double, ThresholdTypes)

Applies a fixed-level threshold to each array element.

Declaration

public static void Threshold(InputArray src, OutputArray rlDest, double thresh, ThresholdTypes type)

Parameters

Type	Name	Description
InputArray	src	input array (single-channel).
OutputArray	rlDest	resulting run length encoded image.
System.Double	thresh	threshold value.
ThresholdTypes	type	thresholding type (only cv::THRESH_BINARY and cv::THRESH_BINARY_INV are supported)