ImageRegion Property

Summary

RasterImage object that is updated with a shallow copy of the image that also has a region that contains the removed lines.

Syntax

Objective-C

C++

Java

public RasterImage ImageRegion { get; }

Public ReadOnly Property ImageRegion As RasterImage

@property (nonatomic, strong, readonly, nullable) LTRasterImage *imageRegion

public RasterImage getImageRegion()

public: 
property RasterImage^ ImageRegion { 
   RasterImage^ get(); 
}

Property Value

The RasterImage object, updated with a shallow copy of the image that has a region that contains the removed lines.

Remarks

If LineRemoveCommandFlags.SingleRegion| LineRemoveCommandFlags.LeadRegion has been set in Flags, then when LineRemoveCommand returns, this property is updated with a shallow copy of the image that also has a region that contains the removed lines. So set Flags to (LineRemoveCommandFlags.SingleRegion| LineRemoveCommandFlags.LeadRegion). It is the programmer's responsibility to dispose of the region when it is no longer needed.

Example

Run the LineRemoveCommand on an image.

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Core; 
 
public void ImageRegionPropertyExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Clean.tif")); 
 
   // Prepare the command 
   LineRemoveCommand command = new LineRemoveCommand(); 
   command.LineRemove += new EventHandler<LineRemoveCommandEventArgs>(LineRemoveEvent_S3); 
   command.Type = LineRemoveCommandType.Horizontal; 
   command.Flags = LineRemoveCommandFlags.UseVariance | LineRemoveCommandFlags.SingleRegion; 
   command.GapLength = 2; 
   command.MaximumLineWidth = 5; 
   command.MinimumLineLength = 200; 
   command.MaximumWallPercent = 10; 
   command.Wall = 7; 
   command.Variance = 2; 
   command.Run(image); 
 
} 
 
private void LineRemoveEvent_S3(object sender, LineRemoveCommandEventArgs e) 
{ 
   MessageBox.Show("Row Col " + "( " + e.StartRow.ToString() + ", " + e.StartColumn + " )" + 
      "\n Length " + e.Length.ToString()); 
   e.Status = RemoveStatus.Remove; 
} 
 
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 lineRemoveCommand_S3 As LineRemoveCommand 
Public Sub ImageRegionPropertyExample() 
   Dim codecs As New RasterCodecs() 
   codecs.ThrowExceptionsOnInvalidImages = True 
 
   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Clean.tif")) 
 
   ' Prepare the command 
   lineRemoveCommand_S3 = New LineRemoveCommand 
   lineRemoveCommand_S3.Type = LineRemoveCommandType.Horizontal 
   lineRemoveCommand_S3.Flags = LineRemoveCommandFlags.UseVariance Or LineRemoveCommandFlags.SingleRegion Or LineRemoveCommandFlags.LeadRegion 
   lineRemoveCommand_S3.GapLength = 2 
   lineRemoveCommand_S3.MaximumLineWidth = 5 
   lineRemoveCommand_S3.MinimumLineLength = 200 
   lineRemoveCommand_S3.MaximumWallPercent = 10 
   lineRemoveCommand_S3.Wall = 7 
   lineRemoveCommand_S3.Variance = 2 
   lineRemoveCommand_S3.Run(leadImage) 
 
End Sub 
 
Private Sub LineRemoveCommand_LineRemove_S3(ByVal sender As Object, ByVal e As LineRemoveCommandEventArgs) Handles lineRemoveCommand_S3.LineRemove 
   MessageBox.Show("Row Col " + "( " + e.StartRow.ToString() + ", " + e.StartColumn.ToString() + " )" + 
      Chr(13) + " Length " + 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

c#[Silverlight C# Example] 
using Leadtools; 
using Leadtools.Examples; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Core; 
 
public void ImageRegionPropertyExample(RasterImage image, Stream outStream) 
{ 
   // Prepare the command 
   LineRemoveCommand command = new LineRemoveCommand(); 
   command.LineRemove += new EventHandler<LineRemoveCommandEventArgs>(LineRemoveEvent_S3); 
   command.Type = LineRemoveCommandType.Horizontal; 
   command.Flags = LineRemoveCommandFlags.UseVariance | LineRemoveCommandFlags.SingleRegion; 
   command.GapLength = 2; 
   command.MaximumLineWidth = 5; 
   command.MinimumLineLength = 200; 
   command.MaximumWallPercent = 10; 
   command.Wall = 7; 
   command.Variance = 2; 
   command.Run(image); 
 
   // Save result image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.Save(image, outStream, RasterImageFormat.CcittGroup4, 1); 
   image.Dispose(); 
} 
 
private void LineRemoveEvent_S3(object sender, LineRemoveCommandEventArgs e) 
{ 
   Debug.WriteLine("Row Col " + "( " + e.StartRow.ToString() + ", " + e.StartColumn + " )" + 
      "\n Length " + e.Length.ToString()); 
   e.Status = RemoveStatus.Remove; 
} 
vb[Silverlight VB Example] 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.Core 
 
Public Sub ImageRegionPropertyExample(ByVal image As RasterImage, ByVal outStream As Stream) 
   ' Prepare the command 
   Dim command As LineRemoveCommand = New LineRemoveCommand() 
   AddHandler command.LineRemove, AddressOf LineRemoveEvent_S3 
   command.Type = LineRemoveCommandType.Horizontal 
   command.Flags = LineRemoveCommandFlags.UseVariance Or LineRemoveCommandFlags.SingleRegion 
   command.GapLength = 2 
   command.MaximumLineWidth = 54 
   command.MinimumLineLength = 200 
   command.MaximumWallPercent = 10 
   command.Wall = 7 
   command.Variance = 2 
   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 LineRemoveEvent_S3(ByVal sender As Object, ByVal e As LineRemoveCommandEventArgs) 
   Debug.WriteLine("Row Col " & "( " & e.StartRow.ToString() & ", " & e.StartColumn & " )" & Constants.vbLf & " Length " & e.Length.ToString()) 
   e.Status = RemoveStatus.Remove 
End Sub

Requirements

Target Platforms

Reference

LineRemoveCommand Class

LineRemoveCommand Members

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Help Version 20.0.2020.4.3

Leadtools.ImageProcessing.Core Assembly

Introduction

Getting Started

Namespaces

Leadtools.ImageProcessing.Core Namespace

Assemblies