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

CvArrCanny Method (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 void Canny(
	CvArr edges,
	double threshold1,
	double threshold2,
	ApertureSize apertureSize
)

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

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

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

Parameters

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

CvArr Class

Canny Overload

OpenCvSharp Namespace