Cv.Canny Method (CvArr, CvArr, Double, Double, ApertureSize)

CvCanny Method (CvArr, CvArr, Double, Double, ApertureSize)

OpenCvSharp Class Library

Finds the edges on the input image image and marks them in the output image edges using the Canny algorithm. The smallest of threshold1 and threshold2 is used for edge linking, the largest - to find initial segments of strong edges.

Namespace: OpenCvSharp
Assembly: OpenCvSharp (in OpenCvSharp.dll) Version: 1.0.0.0 (1.0.0.0)

Syntax

C++

Copy

public static void Canny(
	CvArr image,
	CvArr edges,
	double threshold1,
	double threshold2,
	ApertureSize apertureSize
)

Public Shared Sub Canny ( 
	image As CvArr,
	edges As CvArr,
	threshold1 As Double,
	threshold2 As Double,
	apertureSize As ApertureSize
)

public:
static void Canny(
	CvArr^ image, 
	CvArr^ edges, 
	double threshold1, 
	double threshold2, 
	ApertureSize apertureSize
)

static member Canny : 
        image : CvArr * 
        edges : CvArr * 
        threshold1 : float * 
        threshold2 : float * 
        apertureSize : ApertureSize -> unit

Parameters

image: Type: OpenCvSharpCvArr
Input image.
edges: Type: OpenCvSharpCvArr
Image to store the edges found by the function.
threshold1: Type: SystemDouble
The first threshold.
threshold2: Type: SystemDouble
The second threshold.
apertureSize: Type: OpenCvSharpApertureSize
Aperture parameter for Sobel operator.

Reference

Cv Class

Canny Overload

OpenCvSharp Namespace