LEADTOOLS Image Processing (Leadtools.ImageProcessing.Core assembly)

DespeckleCommand Class

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Example 







Members 
Removes speckles from an image. Typically, this command is used to clean up scanned images (such as FAX images). This command is available in the Document/Medical Toolkits.
Object Model
Syntax
'Declaration
 
Public Class DespeckleCommand 
   Inherits Leadtools.ImageProcessing.RasterCommand
   Implements Leadtools.ImageProcessing.IRasterCommand 
'Usage
 
Dim instance As DespeckleCommand
public sealed class DespeckleCommand : Leadtools.ImageProcessing.IRasterCommand  
@interface LTDespeckleCommand : LTRasterCommand
public class DespeckleCommand extends RasterCommand
function Leadtools.ImageProcessing.Core.DespeckleCommand()
Remarks
For more information, refer to Removing Noise.

In Silverlight and Windows Phone versions of LEADTOOLS, this image processing command will fail if the image data for the RasterImage object is stored internally using a Silverlight WriteableBitmap object. For more information, refer to Image Processing Command Limitations in Silverlight.

Example
Copy Code  
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing.Core

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

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

   ' Prepare the command
   Dim command As DespeckleCommand = New DespeckleCommand
   'Remove speckles from the image.

   command.Run(leadImage)

End Sub

Public NotInheritable Class LEAD_VARS
Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Core;

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

   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Clean.tif"));

   // Prepare the command
   DespeckleCommand command = new DespeckleCommand();
   //Remove speckles from the image.
   command.Run(image);

}

static class LEAD_VARS
{
public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}
function DespeckleCommandExample()
{
   var codecs = new Leadtools.Codecs.RasterCodecs();
   codecs.throwExceptionsOnInvalidImages = true;

   // Load the image
   var srcFileName = "Assets\\Clean.tif";
   return Tools.AppInstallFolder().getFileAsync(srcFileName).then(function (loadFile) {
      return codecs.loadAsync(Leadtools.LeadStreamFactory.create(loadFile));
   }).then(function (image){
      // Prepare the command
      with (Leadtools.ImageProcessing.Core) {
         var command = new DespeckleCommand();
         //Remove speckles from the image.
         command.run(image);
      }
   });
}
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Core;

      
public async Task DespeckleCommandExample()
{
   // Load an image
   RasterCodecs codecs = new RasterCodecs();
   codecs.ThrowExceptionsOnInvalidImages = true;
   // Load the image
   string srcFileName = @"Assets\Clean.tif";
   StorageFile loadFile = await Tools.AppInstallFolder.GetFileAsync(srcFileName);
   RasterImage image = await codecs.LoadAsync(LeadStreamFactory.Create(loadFile));

   // Prepare the command
   DespeckleCommand command = new DespeckleCommand();
   //Remove speckles from the image.
   command.Run(image);

}
using Leadtools;
using Leadtools.Examples;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Core;

public void DespeckleCommandExample(RasterImage image, Stream outStream)
{
   // Prepare the command
   DespeckleCommand command = new DespeckleCommand();
   //Remove speckles from the image.
   command.Run(image);
   // Save result image
   RasterCodecs codecs = new RasterCodecs();
   codecs.Save(image, outStream, RasterImageFormat.CcittGroup4, 1);
   image.Dispose();
}
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing.Core

Public Sub DespeckleCommandExample(ByVal image As RasterImage, ByVal outStream As Stream)
   ' Prepare the command
   Dim command As DespeckleCommand = New DespeckleCommand()
   'Remove speckles from the image.
   command.Run(image)
   ' Save result image
   Dim codecs As RasterCodecs = New RasterCodecs()
   codecs.Save(image, outStream, RasterImageFormat.CcittGroup4, 1)
   image.Dispose()
End Sub
Requirements

Target Platforms

See Also

Reference

DespeckleCommand Members
Leadtools.ImageProcessing.Core Namespace
Removing Noise
DeskewCommand Class
WindowLevelCommand Class
Leadtools.ImageProcessing.SpecialEffects.BricksTextureCommand
DeskewCommand Class
Leadtools.ImageProcessing.SpecialEffects.DiffuseGlowCommand
Leadtools.ImageProcessing.SpecialEffects.GlowCommand
HalfTonePatternCommand Class
Leadtools.ImageProcessing.Effects.HighPassCommand
Leadtools.ImageProcessing.Effects.MaskConvolutionCommand
Leadtools.ImageProcessing.SpecialEffects.PerspectiveCommand
Leadtools.ImageProcessing.SpecialEffects.PlasmaCommand
Leadtools.ImageProcessing.SpecialEffects.PointillistCommand
Leadtools.ImageProcessing.SpecialEffects.FragmentCommand
Leadtools.ImageProcessing.Effects.HighPassCommand
Leadtools.ImageProcessing.Effects.UnsharpMaskCommand

 

 


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