EdgeDetectorActivity Class

Applies the specified edge filter to an image. This activity is available in the Document Toolkits.

Object Model

Syntax

Visual Basic
C#
WinRT C#
WinRT JavaScript
C++

public class EdgeDetectorActivity : ImageProcessingBaseActivity, System.ComponentModel.IComponent, System.IDisposable

'Declaration
 
Public Class EdgeDetectorActivity 
   Inherits ImageProcessingBaseActivity
   Implements System.ComponentModel.IComponent, System.IDisposable

'Usage
 
Dim instance As EdgeDetectorActivity

public sealed class EdgeDetectorActivity : System.ComponentModel.IComponent, IClosable //In WinRT the IDisposable interface is replaced by IClosable

function Leadtools.Workflow.ImageProcessing.EdgeDetectorActivity()

public ref class EdgeDetectorActivity : public ImageProcessingBaseActivity, System.ComponentModel.IComponent, System.IDisposable

Remarks

Filters such as the Sobel filter, Prewitt filter, Laplacian filter, and Gradient filter are used to determine which pixels belong to the edges in the image.
The threshold range for 16, 48, and 64-bit images is from 0 to 65535 and for 12-bit images from 0 to 4095. Otherwise, it is from 0 to 255. The threshold is applied on channels separately.
This activity supports 12 and 16-bit grayscale and 48 and 64-bit color images. Support for 12 and 16-bit grayscale and 48 and 64-bit color images is available only in the Document/Medical toolkits.
This activity does not support 32-bit grayscale images.

For more information, refer to Detecting and Enhancing Edges and Lines.

Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

EdgeDetectorActivity Members
Leadtools.Workflow.ImageProcessing Namespace