RakeRemoveCommand Class

C#
Visual Basic
WinRT C#
Java
Objective-C
WinRT JavaScript
C++

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

'Declaration

Public Class RakeRemoveCommand 
   Inherits Leadtools.ImageProcessing.RasterCommand
   Implements Leadtools.ImageProcessing.IRasterCommand

'Usage

Dim instance As RakeRemoveCommand

public sealed class RakeRemoveCommand : Leadtools.ImageProcessing.IRasterCommand

function Leadtools.ImageProcessing.Core.RakeRemoveCommand()

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

Removes data entry rakes from scanned text documents. If the lines pass through text, the RakeRemoveCommand properties and Constructor parameters can be configured to remove or preserve the text. The behavior of this command can be further modified by using an Event Handler that handles the RakeRemoveCommandEventArgs.
This command works only on 1-bit black and white images.
If a region is selected, only the selected region will be changed by this command. If no region is selected, the whole image will be processed.
This command does not support signed data images.
This command does not support 32-bit grayscale images.

For more information, refer to Cleaning Up 1-Bit Images.

Runs the RakeRemoveCommand on an image.

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

Copy Code

Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing.Core

Public WithEvents rakeRemoveCommand_S1 As RakeRemoveCommand
   
Public Sub RakeRemoveCommandExample()
   Dim codecs As New RasterCodecs()
   codecs.ThrowExceptionsOnInvalidImages = True
   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Forms\\Forms to be Recognized\\OCR\\FCC-107_OCR_Filled.tif"))

   ' Prepare the command
   rakeRemoveCommand_S1 = New RakeRemoveCommand

   rakeRemoveCommand_S1.MinLength = 50
   rakeRemoveCommand_S1.MinWallHeight = 10
   rakeRemoveCommand_S1.MaxWidth = 3
   rakeRemoveCommand_S1.MaxWallPercent = 25
   rakeRemoveCommand_S1.MaxSideteethLength = 60
   rakeRemoveCommand_S1.MaxMidteethLength = 50
   rakeRemoveCommand_S1.Gaps = 1
   rakeRemoveCommand_S1.Variance = 1
   rakeRemoveCommand_S1.TeethSpacing = 5
   rakeRemoveCommand_S1.AutoFilter = False
   rakeRemoveCommand_S1.Run(leadImage)


End Sub

Private Sub RakeRemoveCommand_RakeRemove_S1(ByVal sender As Object, ByVal e As RakeRemoveCommandEventArgs) Handles rakeRemoveCommand_S1.RakeRemove
   MessageBox.Show("Rake length is " + "( " + e.Length.ToString() + " )")
   e.Status = RemoveStatus.Remove
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 RakeRemoveCommandExample()
{
    // Load an image
    RasterCodecs codecs = new RasterCodecs();
    codecs.ThrowExceptionsOnInvalidImages = true;
    RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, @"Forms\Forms to be Recognized\OCR\FCC-107_OCR_Filled.tif"));

    // Prepare the command
    RakeRemoveCommand command = new RakeRemoveCommand();
    command.RakeRemove += new EventHandler<RakeRemoveCommandEventArgs>(RakeRemoveEvent_S1);
    command.MinLength = 50;
    command.MinWallHeight = 10;
    command.MaxWidth = 3;
    command.MaxWallPercent = 25;
    command.MaxSideteethLength = 60;
    command.MaxMidteethLength = 50;
    command.Gaps = 1;
    command.Variance = 1;
    command.TeethSpacing = 5;
    command.AutoFilter = false;

    command.Run(image);

}

private void RakeRemoveEvent_S1(object sender, RakeRemoveCommandEventArgs e)
{
    MessageBox.Show("Rake length is " + "( " + e.Length.ToString() + " )" );
    e.Status = RemoveStatus.Remove;
}

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

//    
//    public async Task RakeRemoveCommandExample()
//    {
//        // 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
//        RakeRemoveCommand command = new RakeRemoveCommand();
//        command.RakeRemove += new EventHandler<RakeRemoveCommandEventArgs>(RakeRemoveEvent_S1);
//        command.MinLength = 50;
//        command.MinWallHeight = 10;
//        command.MaxWidth = 3;
//        command.MaxWallPercent = 25;
//        command.MaxSideteethLength = 60;
//        command.MaxMidteethLength = 50;
//        command.Gaps = 1;
//        command.Variance = 1;
//        command.TeethSpacing = 5;
//        command.AutoFilter = false;
         
//        command.Run(image);
         
//    }

//    private void RakeRemoveEvent_S1(object sender, RakeRemoveCommandEventArgs e)
//    {
//        Debug.WriteLine("Rake length is " + "( " + e.Length.ToString() + " )" );
//        e.Status = RemoveStatus.Remove;
//    }
//

Target Platforms

Reference

RakeRemoveCommand Members
Leadtools.ImageProcessing.Core Namespace
Cleaning Up 1-Bit Images
SmoothCommand Class
BorderRemoveCommand Class
InvertedTextCommand Class
DotRemoveCommand Class
HolePunchRemoveCommand Class