Class RidgeDetectionFilter

Applies Ridge Detection Filter to an input image.

Implements Ridge detection similar to the one in Mathematica using the eigen values from the Hessian Matrix of the input image using Sobel Derivatives. Additional refinement can be done using Skeletonization and Binarization. Adapted from @cite segleafvein and @cite M_RF

Inheritance
System.Object
DisposableObject
DisposableCvObject
Algorithm
RidgeDetectionFilter
Implements
Inherited Members
Namespace: OpenCvSharp
Assembly: OpenCvSharp.dll
Syntax
public class RidgeDetectionFilter : Algorithm, ICvPtrHolder

Constructors

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RidgeDetectionFilter(IntPtr)

Constructor

Declaration
protected RidgeDetectionFilter(IntPtr p)
Parameters
Type Name Description
IntPtr p

Methods

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Create(Nullable<MatType>, Int32, Int32, Int32, Nullable<MatType>, Double, Double, BorderTypes)

Create pointer to the Ridge detection filter.

Declaration
public static RidgeDetectionFilter Create(MatType? ddepth = null, int dx = 1, int dy = 1, int ksize = 3, MatType? outDtype = null, double scale = 1, double delta = 0, BorderTypes borderType = BorderTypes.Reflect101)
Parameters
Type Name Description
System.Nullable<OpenCvSharp.MatType> ddepth

Specifies output image depth. Defualt is CV_32FC1
System.Int32 dx

Order of derivative x, default is 1
System.Int32 dy

Order of derivative y, default is 1
System.Int32 ksize

Sobel kernel size , default is 3
System.Nullable<OpenCvSharp.MatType> outDtype

Converted format for output, default is CV_8UC1
System.Double scale

Optional scale value for derivative values, default is 1
System.Double delta

Optional bias added to output, default is 0
BorderTypes borderType

Pixel extrapolation method, default is BORDER_DEFAULT
Returns
Type Description
RidgeDetectionFilter
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DisposeManaged()

Releases managed resources

Declaration
protected override void DisposeManaged()
Overrides
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DisposeUnmanaged()

Declaration
protected override void DisposeUnmanaged()
Overrides
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Get()

Declaration
public override IntPtr Get()
Returns
Type Description
IntPtr
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GetRidgeFilteredImage(InputArray, OutputArray)

Apply Ridge detection filter on input image.

Declaration
public virtual void GetRidgeFilteredImage(InputArray src, OutputArray dst)
Parameters
Type Name Description
InputArray src

InputArray as supported by Sobel. img can be 1-Channel or 3-Channels.
OutputArray dst

OutputAray of structure as RidgeDetectionFilter::ddepth. Output image with ridges.

Implements