LEADTOOLS Image Processing (Leadtools.ImageProcessing.Core assembly)

HolePunchRemoveCommand Class

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Example 







Members 
Finds and removes hole punches. This command is available in the Document/Medical Toolkits.
Object Model
Syntax
'Declaration
 
Public Class HolePunchRemoveCommand 
   Inherits Leadtools.ImageProcessing.RasterCommand
   Implements Leadtools.ImageProcessing.IRasterCommand 
'Usage
 
Dim instance As HolePunchRemoveCommand
public sealed class HolePunchRemoveCommand : Leadtools.ImageProcessing.IRasterCommand  

            

            
function Leadtools.ImageProcessing.Core.HolePunchRemoveCommand()
public ref class HolePunchRemoveCommand : public Leadtools.ImageProcessing.RasterCommand, Leadtools.ImageProcessing.IRasterCommand  
Remarks

For example, the following image must have the vertical line removed:

Once the image has been cleaned, as shown in the following figure, the hole punch can be removed:

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

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

Public WithEvents holePunchCommand_S1 As HolePunchRemoveCommand
Public Sub HolePunchRemoveCommandExample()
   Dim codecs As New RasterCodecs()
   codecs.ThrowExceptionsOnInvalidImages = True

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

   ' Prepare the command
   holePunchCommand_S1 = New HolePunchRemoveCommand
   holePunchCommand_S1.Flags = HolePunchRemoveCommandFlags.UseDpi Or HolePunchRemoveCommandFlags.UseCount Or HolePunchRemoveCommandFlags.UseLocation
   holePunchCommand_S1.Location = HolePunchRemoveCommandLocation.Left
   holePunchCommand_S1.MaximumHoleCount = 4
   holePunchCommand_S1.MinimumHoleCount = 2

   holePunchCommand_S1.Run(leadImage)

End Sub

Private Sub HolePunchCommand_HolePunchRemove_S1(ByVal sender As Object, ByVal e As HolePunchRemoveCommandEventArgs) Handles holePunchCommand_S1.HolePunchRemove
   MessageBox.Show("Size " + "( " + e.BoundingRectangle.Left.ToString() + ", " + e.BoundingRectangle.Top.ToString() + ") - " + "( " + e.BoundingRectangle.Right.ToString() + ", " + e.BoundingRectangle.Bottom.ToString() + ")" + _
           Chr(13) + " Hole Index " + e.HoleIndex.ToString() + _
           Chr(13) + " Holes Total Count " + e.HoleTotalCount.ToString() + _
           Chr(13) + " Black Count " + e.BlackCount.ToString() + _
           Chr(13) + " White Count " + e.WhiteCount.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 HolePunchRemoveCommandExample()
{
   // Load an image
   RasterCodecs codecs = new RasterCodecs();
   codecs.ThrowExceptionsOnInvalidImages = true;

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

   // Prepare the command
   HolePunchRemoveCommand command = new HolePunchRemoveCommand();
   command.HolePunchRemove  += new EventHandler<HolePunchRemoveCommandEventArgs>(HolePunchRemoveEvent_S1);
   command.Flags            = HolePunchRemoveCommandFlags.UseDpi | HolePunchRemoveCommandFlags.UseCount | HolePunchRemoveCommandFlags.UseLocation;
   command.Location         = HolePunchRemoveCommandLocation.Left;
   command.MaximumHoleCount = 4;
   command.MinimumHoleCount = 2;

   command.Run(image);

}

private void HolePunchRemoveEvent_S1(object sender, HolePunchRemoveCommandEventArgs e)
{
   MessageBox.Show("Size "                 + "( " + e.BoundingRectangle.Left + ", " + e.BoundingRectangle.Top + ") - " + "( " + e.BoundingRectangle.Right + ", " + e.BoundingRectangle.Bottom + ")" +
      "\n Hole Index "        + e.HoleIndex.ToString() + 
      "\n Holes Total Count " + e.HoleTotalCount.ToString() + 
      "\n Black Count "       + e.BlackCount.ToString() + 
      "\n White Count "       + e.WhiteCount.ToString());
   e.Status= RemoveStatus.Remove;
}

static class LEAD_VARS
{
public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}
function HolePunchRemoveCommandExample() {
   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 HolePunchRemoveCommand();
         command.addEventListener("holepunchremove", HolePunchRemoveEvent_S1);
         command.flags = HolePunchRemoveCommandFlags.useDpi | HolePunchRemoveCommandFlags.useCount | HolePunchRemoveCommandFlags.useLocation;
         command.location = HolePunchRemoveCommandLocation.left;
         command.maximumHoleCount = 4;
         command.minimumHoleCount = 2;

         command.run(image);
      }
   });
}

function HolePunchRemoveEvent_S1(e) {
   console.error("Size " + "( " + e.boundingRectangle.x + ", " + e.boundingRectangle.y + ") - " + "( " + e.boundingRectangle.width + ", " + e.boundingRectangle.height + ")" +
      "\n Hole Index " + e.holeIndex.toString() +
      "\n Holes Total Count " + e.holeTotalCount.toString() +
      "\n Black Count " + e.blackCount.toString() +
      "\n White Count " + e.whiteCount.toString());
   e.status = Leadtools.ImageProcessing.Core.RemoveStatus.remove;
}
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Core;

      
public async Task HolePunchRemoveCommandExample()
{
   // 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
   HolePunchRemoveCommand command = new HolePunchRemoveCommand();
   command.HolePunchRemove  += new EventHandler<HolePunchRemoveCommandEventArgs>(HolePunchRemoveEvent_S1);
   command.Flags            = HolePunchRemoveCommandFlags.UseDpi | HolePunchRemoveCommandFlags.UseCount | HolePunchRemoveCommandFlags.UseLocation;
   command.Location         = HolePunchRemoveCommandLocation.Left;
   command.MaximumHoleCount = 4;
   command.MinimumHoleCount = 2;

   command.Run(image);

}

private void HolePunchRemoveEvent_S1(object sender, HolePunchRemoveCommandEventArgs e)
{
   Debug.WriteLine("Size "                 + "( " + e.BoundingRectangle.X + ", " + e.BoundingRectangle.Y + ") - " + "( " + e.BoundingRectangle.Width + ", " + e.BoundingRectangle.Height + ")" +
      "\n Hole Index "        + e.HoleIndex.ToString() + 
      "\n Holes Total Count " + e.HoleTotalCount.ToString() + 
      "\n Black Count "       + e.BlackCount.ToString() + 
      "\n White Count "       + e.WhiteCount.ToString());
   e.Status= RemoveStatus.Remove;
}
Requirements

Target Platforms

See Also

Reference

HolePunchRemoveCommand Members
Leadtools.ImageProcessing.Core Namespace
Cleaning Up 1-Bit Images
SmoothCommand Class
BorderRemoveCommand Class
LineRemoveCommand Class
InvertedTextCommand Class
InvertedPageCommand Class
DotRemoveCommand Class
HighQualityRotateCommand Class
MinimumCommand Class
MaximumCommand Class
Leadtools.ImageProcessing.Effects.RegionHolesRemovalCommand

 

 


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