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IsBlank Property
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Leadtools.ImageProcessing.Core Namespace > BlankPageDetectorCommand Class : IsBlank Property



(Read-only) Gets a value that indicates whether the page is blank or not.

Syntax

Visual Basic (Declaration) 
Public ReadOnly Property IsBlank As Boolean
Visual Basic (Usage)Copy Code
Dim instance As BlankPageDetectorCommand
Dim value As Boolean
 
value = instance.IsBlank
C# 
public bool IsBlank {get;}
C++/CLI 
public:
property bool IsBlank {
   bool get();
}

Return Value

true if the page is blank; false otherwise.

Example

Run the BlankPageDetectorCommand on an image and determine whether it is blank.

Visual BasicCopy Code
Public Sub BlankPageDetectorCommandExample()
   RasterCodecs.Startup()
   Dim codecs As New RasterCodecs()
   codecs.ThrowExceptionsOnInvalidImages = True

   Dim leadImage As RasterImage = codecs.Load(LeadtoolsExamples.Common.ImagesPath.Path + "Clean.tif")

   ' Prepare the command
   Dim command As BlankPageDetectorCommand = New BlankPageDetectorCommand
     'Determine whether the image is blank.
   command.Flags = BlankPageDetectorCommandFlags.DetectNoisyPage

   command.Run(leadImage)
   MessageBox.Show(" Is Blank : " & command.IsBlank & "\n Accuracy : " & (command.Accuracy * 1.0 / 100) & "%", "Blank Page Detection Results")


   RasterCodecs.Shutdown()
End Sub
C#Copy Code
public void BlankPageDetectorCommandExample() 
{ 
   // Load an image 
   RasterCodecs.Startup(); 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(LeadtoolsExamples.Common.ImagesPath.Path + "Clean.tif"); 
 
   // Prepare the command 
   BlankPageDetectorCommand command = new BlankPageDetectorCommand(); 
   //Determine whether the image is a blank page 
   command.Flags = BlankPageDetectorCommandFlags.DetectNoisyPage; 
   command.Run(image); 
 
   MessageBox.Show(" Is Blank   : " + command.IsBlank + "\n Accuracy : " + (command.Accuracy * 1.0 / 100) + "%", "Blank Page Detection Results"); 
 
   RasterCodecs.Shutdown(); 
}

Requirements

Target Platforms: Microsoft .NET Framework 2.0, Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

See Also