Region Property

Summary

Gets the handle to a LEADTOOLS RasterRegion.

Syntax

Objective-C

C++

Java

public RasterRegion Region { get; }

Public ReadOnly Property Region As RasterRegion

@property (nonatomic, strong, readonly, nullable) LTRasterRegion *region

public RasterRegion getRegion()

public: 
property RasterRegion^ Region { 
   RasterRegion^ get(); 
}

Property Value

Handle to a windows region. When BorderRemoveCommand returns, this is updated with a single windows region corresponding to all changes, only if BorderRemoveCommandFlags.SingleRegion has been set in Flags and BorderRemoveCommandFlags.LeadRegion has not been set. To use this, set the Flags to BorderRemoveCommandFlags.SingleRegion. It is the programmer's responsibility to dispose of this region when the region is no longer needed.

Example

Run the BorderRemoveCommand on an image.

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Core; 
using Leadtools.ImageProcessing.Color; 
 
public void RegionPropertyExample() 
{ 
   // 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(); 
   command.Border = BorderRemoveBorderFlags.All; 
   command.Flags = BorderRemoveCommandFlags.UseVariance | BorderRemoveCommandFlags.SingleRegion; 
   command.Percent = 20; 
   command.Variance = 3; 
   command.WhiteNoiseLength = 9; 
 
   command.Run(image); 
   image.SetRegion(null, command.Region, RasterRegionCombineMode.Set); 
 
} 
 
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 
 
Public Sub RegionPropertyExample() 
   Dim codecs As New RasterCodecs() 
   codecs.ThrowExceptionsOnInvalidImages = True 
 
   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Clean.tif")) 
 
   ' Prepare the command 
   Dim command As BorderRemoveCommand = New BorderRemoveCommand 
   command.Border = BorderRemoveBorderFlags.All 
   command.Flags = BorderRemoveCommandFlags.UseVariance Or BorderRemoveCommandFlags.SingleRegion 
   command.Percent = 20 
   command.Variance = 3 
   command.WhiteNoiseLength = 9 
 
   command.Run(leadImage) 
   leadImage.SetRegion(Nothing, command.Region, RasterRegionCombineMode.Set) 
 
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 RegionPropertyExample(RasterImage image, Stream outStream) 
{ 
   // Prepare the command 
   BorderRemoveCommand command = new BorderRemoveCommand(); 
   command.Border = BorderRemoveBorderFlags.All; 
   command.Flags = BorderRemoveCommandFlags.UseVariance | BorderRemoveCommandFlags.SingleRegion; 
   command.Percent = 20; 
   command.Variance = 3; 
   command.WhiteNoiseLength = 9; 
 
   command.Run(image); 
 
   // Save result image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.Save(image, outStream, RasterImageFormat.CcittGroup4, 1); 
   image.Dispose(); 
} 
vb[Silverlight VB Example] 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.Core 
 
Public Sub RegionPropertyExample(ByVal image As RasterImage, ByVal outStream As Stream) 
   ' Prepare the command 
   Dim command As BorderRemoveCommand = New BorderRemoveCommand() 
   command.Border = BorderRemoveBorderFlags.All 
   command.Flags = BorderRemoveCommandFlags.UseVariance Or BorderRemoveCommandFlags.SingleRegion 
   command.Percent = 20 
   command.Variance = 3 
   command.WhiteNoiseLength = 9 
 
   command.Run(image) 
 
   ' Save result image 
   Dim codecs As RasterCodecs = New RasterCodecs() 
   codecs.Save(image, outStream, RasterImageFormat.CcittGroup4, 1) 
   image.Dispose() 
End Sub

Requirements

Target Platforms

Reference

BorderRemoveCommand Class

BorderRemoveCommand 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