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BorderRemoveCommand Constructor(BorderRemoveCommandFlags,BorderRemoveBorderFlags,int,int,int)

Summary

Initializes a new BorderRemoveCommand class object with explicit parameters.

Syntax

C#
VB
Java
Objective-C
WinRT C#
C++
Public Function New( _ 
   ByVal flags As Leadtools.Imageprocessing.Core.BorderRemoveCommandFlags, _ 
   ByVal border As Leadtools.Imageprocessing.Core.BorderRemoveBorderFlags, _ 
   ByVal percent As Integer, _ 
   ByVal whiteNoiseLength As Integer, _ 
   ByVal variance As Integer _ 
) 
- (instancetype)initWithFlags:(LTBorderRemoveCommandFlags)flags 
                       border:(LTBorderRemoveBorderFlags)border 
                      percent:(NSInteger)percent 
             whiteNoiseLength:(NSInteger)whiteNoiseLength 
                     variance:(NSInteger)variance 
             
public BorderRemoveCommand( 
   int flags,  
   int border,  
   int percent,  
   int whiteNoiseLength,  
   int variance 
) 
             
function BorderRemoveCommand(  
   flags , 
   border , 
   percent , 
   whiteNoiseLength , 
   variance  
) 

Parameters

flags
Flag that determines the behavior of the border removal process.

border
Flag that indicates which border to remove.

percent
Percent of the image dimension in which the border will be found. For most images, use 20. For example, if an image is 200 pixels wide, Percent is set to 20 and Border is set to BorderRemoveBorderFlags.Left, then the left border will be found in the area between the left edge of the image and a line 40 pixels from the left edge. If the border is closer to the edge of the image, use a smaller value. If the border is farther from the edge, use a larger value.

whiteNoiseLength
Amount of white noise tolerated when determining the border. The units are in pixels. Values of 0 to 10 are sufficient for most images.

variance
Amount of variance tolerated in the border. If the border varies significantly in thickness, you should use a higher value for Variance. Range is 0 to 10.

Example

Run the BorderRemoveCommand on an image.

C#
VB
Silverlight C#
Silverlight VB
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Core; 
using Leadtools.ImageProcessing.Color; 
 
public void BorderRemoveConstructorExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Clean.tif")); 
 
   // Prepare the command 
   BorderRemoveCommand command = new BorderRemoveCommand(BorderRemoveCommandFlags.UseVariance | BorderRemoveCommandFlags.CallBackRegion, BorderRemoveBorderFlags.All, 20, 9, 3); 
   command.BorderRemove += new EventHandler<BorderRemoveCommandEventArgs>(command_BorderRemove_S2); 
   command.Run(image); 
 
} 
 
private void command_BorderRemove_S2(object sender, BorderRemoveCommandEventArgs e) 
{ 
   BorderRemoveCommandEventArgs ee = new BorderRemoveCommandEventArgs(e.Image, e.Region, BorderRemoveBorderFlags.All, e.BoundingRectangle); 
   e.Status = RemoveStatus.NoRemove; 
 
   if (e.Region != null) 
   { 
      e.Image.SetRegion(null, e.Region, RasterRegionCombineMode.Set); 
      InvertCommand command = new InvertCommand(); 
      command.Run(e.Image); 
      e.Image.MakeRegionEmpty(); 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; 
} 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.Core 
Imports Leadtools.ImageProcessing.Color 
      Leadtools.Examples.Support.SetLicense() 
 
Public WithEvents borderRemoveConstructorCallback As BorderRemoveCommand 
Public Sub BorderRemoveConstructorExample() 
   Dim codecs As New RasterCodecs() 
   codecs.ThrowExceptionsOnInvalidImages = True 
 
   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Clean.tif")) 
 
   ' Prepare the command 
   borderRemoveConstructorCallback = New BorderRemoveCommand(BorderRemoveCommandFlags.UseVariance Or 
                                                             BorderRemoveCommandFlags.CallBackRegion, 
                                                             BorderRemoveBorderFlags.All, 20, 9, 3) 
   borderRemoveConstructorCallback.Run(leadImage) 
 
End Sub 
 
Private Sub BorderRemoveCommand_BorderRemove_S2(ByVal sender As Object, ByVal e As BorderRemoveCommandEventArgs) Handles borderRemoveConstructorCallback.BorderRemove 
   Dim ee As BorderRemoveCommandEventArgs = New BorderRemoveCommandEventArgs(e.Image, e.Region, BorderRemoveBorderFlags.All, e.BoundingRectangle) 
   e.Status = RemoveStatus.NoRemove 
 
   If Not (e.Region Is Nothing) Then 
      e.Image.SetRegion(Nothing, e.Region, RasterRegionCombineMode.Set) 
      Dim command As InvertCommand = New InvertCommand 
      command.Run(e.Image) 
      e.Image.MakeRegionEmpty() 
   End If 
End Sub 
 
Public NotInheritable Class LEAD_VARS 
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" 
End Class 
using Leadtools; 
using Leadtools.Examples; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Core; 
 
public void BorderRemoveConstructorExample(RasterImage image, Stream outStream) 
{ 
   // Prepare the command 
   BorderRemoveCommand command = new BorderRemoveCommand(BorderRemoveCommandFlags.UseVariance | BorderRemoveCommandFlags.CallBackRegion, BorderRemoveBorderFlags.All, 20, 9, 3); 
   command.BorderRemove += new EventHandler<BorderRemoveCommandEventArgs>(command_BorderRemove_S2); 
   command.Run(image); 
 
   // Save result image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.Save(image, outStream, RasterImageFormat.CcittGroup4, 1); 
   image.Dispose(); 
} 
 
private void command_BorderRemove_S2(object sender, BorderRemoveCommandEventArgs e) 
{ 
   BorderRemoveCommandEventArgs ee = new BorderRemoveCommandEventArgs(e.Image, null, BorderRemoveBorderFlags.All, e.BoundingRectangle); 
   e.Status = RemoveStatus.NoRemove; 
 
} 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.Core 
 
Public Sub BorderRemoveConstructorExample(ByVal image As RasterImage, ByVal outStream As Stream) 
   ' Prepare the command 
   Dim command As BorderRemoveCommand = New BorderRemoveCommand(BorderRemoveCommandFlags.UseVariance Or BorderRemoveCommandFlags.CallBackRegion, 
                                                                BorderRemoveBorderFlags.All, 20, 9, 3) 
   AddHandler command.BorderRemove, AddressOf command_BorderRemove_S2 
   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 command_BorderRemove_S2(ByVal sender As Object, ByVal e As BorderRemoveCommandEventArgs) 
   Dim ee As BorderRemoveCommandEventArgs = New BorderRemoveCommandEventArgs(e.Image, Nothing, BorderRemoveBorderFlags.All, e.BoundingRectangle) 
   e.Status = RemoveStatus.NoRemove 
 
End Sub 

Requirements

Target Platforms

Help Version 19.0.2017.10.18
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Leadtools.ImageProcessing.Core Assembly