CvCanny Method (CvArr, CvArr, Double, Double) 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

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

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.
See Also

Reference