EdgeDetectEffectCommand Class

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

public class EdgeDetectEffectCommand : Leadtools.ImageProcessing.RasterCommand, Leadtools.ImageProcessing.IRasterCommand

'Declaration
 
Public Class EdgeDetectEffectCommand 
   Inherits Leadtools.ImageProcessing.RasterCommand
   Implements Leadtools.ImageProcessing.IRasterCommand

'Usage
 
Dim instance As EdgeDetectEffectCommand

public sealed class EdgeDetectEffectCommand : Leadtools.ImageProcessing.IRasterCommand

function Leadtools.ImageProcessing.Effects.EdgeDetectEffectCommand()

public ref class EdgeDetectEffectCommand : public Leadtools.ImageProcessing.RasterCommand, Leadtools.ImageProcessing.IRasterCommand

This command detects the edges in an image and then replaces the values of edges by new values calculated according to the Type.
This command 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 command does not support signed data images.
This command does not support 32-bit grayscale images.

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

Visual Basic
C#
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Public Sub EdgeDetectEffectCommandExample()
   Dim codecs As New RasterCodecs()
   codecs.ThrowExceptionsOnInvalidImages = True

   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg"))

   ' Prepare the command
   Dim command As EdgeDetectEffectCommand = New EdgeDetectEffectCommand
   command.Level = 50
   command.Threshold = 0
   command.Type = EdgeDetectEffectCommandType.Smooth
   ' Apply find edges effect on the image.
   command.Run(leadImage)
   codecs.Save(leadImage, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24)

End Sub

Public NotInheritable Class LEAD_VARS
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class

public void EdgeDetectEffectCommandExample()
   {
      // Load an image
      RasterCodecs codecs = new RasterCodecs();
      codecs.ThrowExceptionsOnInvalidImages = true;

      RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg"));

      // Prepare the command
      EdgeDetectEffectCommand command = new EdgeDetectEffectCommand();
      command.Level     = 50;
      command.Threshold = 0;
      command.Type     = EdgeDetectEffectCommandType.Smooth;
      // Apply find edges effect on the image.
      command.Run(image);
      codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24);

   }

static class LEAD_VARS
{
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}

[TestMethod]
public async Task EdgeDetectEffectCommandExample()
{
   // Load an image
   RasterCodecs codecs = new RasterCodecs();
   codecs.ThrowExceptionsOnInvalidImages = true;
   // Load the image
   string srcFileName = @"Assets\Image1.cmp";
   StorageFile loadFile = await Tools.AppInstallFolder.GetFileAsync(srcFileName);
   RasterImage image = await codecs.LoadAsync(LeadStreamFactory.Create(loadFile));

   // Prepare the command
   EdgeDetectEffectCommand command = new EdgeDetectEffectCommand();
   command.Level     = 50;
   command.Threshold = 0;
   command.Type     = EdgeDetectEffectCommandType.Smooth;
   // Apply find edges effect on the image.
   command.Run(image);
   //Save as BMP
   string destFileName = @"result.bmp";
   StorageFile saveFile = await Tools.AppLocalFolder.CreateFileAsync(destFileName);
   await codecs.SaveAsync(image, LeadStreamFactory.Create(saveFile), RasterImageFormat.Bmp, 24);

}

public void EdgeDetectEffectCommandExample(RasterImage image, Stream outStream)
{
   // Prepare the command
   EdgeDetectEffectCommand command = new EdgeDetectEffectCommand();
   command.Level = 50;
   command.Threshold = 0;
   command.Type = EdgeDetectEffectCommandType.Smooth;
   // Apply find edges effect on the image.
   command.Run(image);
   // Save result image
   RasterCodecs codecs = new RasterCodecs();
   codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24);
   image.Dispose();
}

Public Sub EdgeDetectEffectCommandExample(ByVal image As RasterImage, ByVal outStream As Stream)
   ' Prepare the command
   Dim command As EdgeDetectEffectCommand = New EdgeDetectEffectCommand()
   command.Level = 50
   command.Threshold = 0
   command.Type = EdgeDetectEffectCommandType.Smooth
   ' Apply find edges effect on the image.
   command.Run(image)
   ' Save result image
   Dim codecs As RasterCodecs = New RasterCodecs()
   codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24)
   image.Dispose()
End Sub

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