DotRemoveCommandEventArgs Constructor

Summary

Initializes a new DotRemoveCommand with explicit parameters.

Syntax

C++

Java

public DotRemoveCommandEventArgs( 
   RasterImage image, 
   RasterRegion region, 
   LeadRect boundingRectangle, 
   int whiteCount, 
   int blackCount 
)

Public Function New( _ 
   ByVal image As RasterImage, _ 
   ByVal region As RasterRegion, _ 
   ByVal boundingRectangle As LeadRect, _ 
   ByVal whiteCount As Integer, _ 
   ByVal blackCount As Integer _ 
)

public DotRemoveCommandEvent( 
   Object source,  
   RasterImage image,  
   RasterRegion region,  
   LeadRect boundingRectangle,  
   int whiteCount,  
   int blackCount 
)

public: 
DotRemoveCommandEventArgs(  
   RasterImage^ image, 
   RasterRegion^ region, 
   LeadRect boundingRectangle, 
   int whiteCount, 
   int blackCount 
)

Parameters

image
RasterImage object that references the image to be modified.

region
LEADTOOLS RasterRegion representing the dot to be removed. It is the programmer's responsibility to dispose of this region when it is no longer needed.

boundingRectangle
The bounding rectangle of the dot being processed.

whiteCount
Total number of white pixels in the dot being processed.

blackCount
Total number of black pixels in the dot being processed.

Example

Run the DotRemoveCommand on an image.

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Core; 
 
public void DotRemoveCommandEventArgsExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Clean.tif")); 
 
   // Prepare the command 
   DotRemoveCommand command = new DotRemoveCommand(DotRemoveCommandFlags.UseSize | DotRemoveCommandFlags.CallBackRegion, 1, 1, 10, 10); 
   command.DotRemove += new EventHandler<DotRemoveCommandEventArgs>(DotRemoveEvent_S4); 
   command.Run(image); 
 
} 
 
private void DotRemoveEvent_S4(object sender, DotRemoveCommandEventArgs e) 
{ 
   DotRemoveCommandEventArgs ee = new DotRemoveCommandEventArgs(e.Image, e.Region, e.BoundingRectangle, e.WhiteCount, e.BlackCount); 
   // Do not remove the speck if it contains any white pixels 
   if (e.WhiteCount > 0) 
   { 
      e.Status = RemoveStatus.NoRemove; 
   } 
   else 
   { 
      e.Status = RemoveStatus.Remove; 
   } 
 
   if (e.Region != null) 
   { 
      e.Image.SetRegion(null, e.Region, RasterRegionCombineMode.AndNotRegion); 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; 
}

Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.Core 
 
Public WithEvents dotRemoveCommandCallback_S4 As DotRemoveCommand 
Public Sub DotRemoveCommandEventArgsExample() 
   Dim codecs As New RasterCodecs() 
   codecs.ThrowExceptionsOnInvalidImages = True 
 
   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Clean.tif")) 
 
   ' Prepare the command 
   dotRemoveCommandCallback_S4 = New DotRemoveCommand(DotRemoveCommandFlags.UseSize Or DotRemoveCommandFlags.CallBackRegion, 1, 1, 10, 10) 
   dotRemoveCommandCallback_S4.Run(leadImage) 
 
End Sub 
 
Private Sub DotRemoveCommand_DotRemove_S4(ByVal sender As Object, ByVal e As DotRemoveCommandEventArgs) Handles dotRemoveCommandCallback_S4.DotRemove 
   Dim ee As DotRemoveCommandEventArgs = New DotRemoveCommandEventArgs(e.Image, e.Region, e.BoundingRectangle, e.WhiteCount, e.BlackCount) 
   'Do not remove the speck if it contains any white pixels 
   If (e.WhiteCount > 0) Then 
      e.Status = RemoveStatus.NoRemove 
   Else 
      e.Status = RemoveStatus.Remove 
   End If 
 
   If Not (e.Region Is Nothing) Then 
      e.Image.SetRegion(Nothing, e.Region, RasterRegionCombineMode.AndNotRegion) 
   End If 
End Sub 
 
Public NotInheritable Class LEAD_VARS 
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" 
End Class

c#[Silverlight C# Example] 
using Leadtools; 
using Leadtools.Examples; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Core; 
 
public void DotRemoveCommandEventArgsExample(RasterImage image, Stream outStream) 
{ 
   // Prepare the command 
   DotRemoveCommand command = new DotRemoveCommand(DotRemoveCommandFlags.UseSize | DotRemoveCommandFlags.CallBackRegion, 1, 1, 10, 10); 
   command.DotRemove += new EventHandler<DotRemoveCommandEventArgs>(DotRemoveEvent_S4); 
   command.Run(image); 
 
   // Save result image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.Save(image, outStream, RasterImageFormat.CcittGroup4, 1); 
   image.Dispose(); 
} 
 
private void DotRemoveEvent_S4(object sender, DotRemoveCommandEventArgs e) 
{ 
   DotRemoveCommandEventArgs ee = new DotRemoveCommandEventArgs(e.Image, null, e.BoundingRectangle, e.WhiteCount, e.BlackCount); 
   // Do not remove the speck if it contains any white pixels 
   if (e.WhiteCount > 0) 
   { 
      e.Status = RemoveStatus.NoRemove; 
   } 
   else 
   { 
      e.Status = RemoveStatus.Remove; 
   } 
} 
vb[Silverlight VB Example] 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.Core 
 
Public Sub DotRemoveCommandEventArgsExample(ByVal image As RasterImage, ByVal outStream As Stream) 
   ' Prepare the command 
   Dim command As DotRemoveCommand = New DotRemoveCommand(DotRemoveCommandFlags.UseSize Or DotRemoveCommandFlags.CallBackRegion, 1, 1, 10, 10) 
   AddHandler command.DotRemove, AddressOf DotRemoveEvent_S4 
   command.Run(image) 
 
   ' Save result image 
   Dim codecs As RasterCodecs = New RasterCodecs() 
   codecs.Save(image, outStream, RasterImageFormat.CcittGroup4, 1) 
   image.Dispose() 
End Sub 
 
Private Sub DotRemoveEvent_S4(ByVal sender As Object, ByVal e As DotRemoveCommandEventArgs) 
   Dim ee As DotRemoveCommandEventArgs = New DotRemoveCommandEventArgs(e.Image, Nothing, e.BoundingRectangle, e.WhiteCount, e.BlackCount) 
   ' Do not remove the speck if it contains any white pixels 
   If e.WhiteCount > 0 Then 
      e.Status = RemoveStatus.NoRemove 
   Else 
      e.Status = RemoveStatus.Remove 
   End If 
End Sub

Requirements

Target Platforms

Reference

DotRemoveCommandEventArgs Class

DotRemoveCommandEventArgs Members

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Help Version 20.0.2020.4.3

Leadtools.ImageProcessing.Core Assembly

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