Flags that indicate whether the page is empty or noisy, whether to ignore bleed-through, whether to ignore lines, whether to use the active area, and whether to use the default or the user-specified margins. Note: Some flags are being deprecated in Version 20.
public BlankPageDetectorCommandFlags Flags { get; set; }
Public Property Flags As BlankPageDetectorCommandFlags
@property (nonatomic, assign) LTBlankPageDetectorCommandFlags flags
public int getFlags()
public void setFlags(int value)
public:
property BlankPageDetectorCommandFlags Flags {
BlankPageDetectorCommandFlags get();
void set ( BlankPageDetectorCommandFlags );
}
Flags that indicate whether the page is empty or noisy, whether to ignore bleed-through, whether to ignore lines, whether to use the active area, and whether to use the default or the user-specified margins. The default value is:
BlankPageDetectorCommandFlags::DetectEmptyPage |
BlankPageDetectorCommandFlags::DontUseBleedThrough |
BlankPageDetectorCommandFlags::DontDetectLinedPage |
BlankPageDetectorCommandFlags::DontUseActiveArea |
BlankPageDetectorCommandFlags::UseDefaultMargins
The following members are being deprecated in Version 20. They will be removed from the toolkits, effective with LEADTOOLS version 21.
Runs the BlankPageDetectorCommand on an image and determines whether it is blank.
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Core;
public void BlankPageDetectorCommandExample()
{
// Load an image
RasterCodecs codecs = new RasterCodecs();
codecs.ThrowExceptionsOnInvalidImages = true;
RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "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");
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing.Core
Public Sub BlankPageDetectorCommandExample()
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 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")
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 BlankPageDetectorCommandExample(RasterImage image)
{
// Prepare the command
BlankPageDetectorCommand command = new BlankPageDetectorCommand();
//Determine whether the image is a blank page
command.Flags = BlankPageDetectorCommandFlags.DetectNoisyPage;
command.Run(image);
Debug.WriteLine(" Is Blank : " + command.IsBlank + "\n Accuracy : " + (command.Accuracy * 1.0 / 100) + "%", "Blank Page Detection Results", MessageBoxButton.OK);
image.Dispose();
}
vb[Silverlight VB Example]
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing.Core
Public Sub BlankPageDetectorCommandExample(ByVal image As RasterImage)
' Prepare the command
Dim command As BlankPageDetectorCommand = New BlankPageDetectorCommand()
'Determine whether the image is a blank page
command.Flags = BlankPageDetectorCommandFlags.DetectNoisyPage
command.Run(image)
Debug.WriteLine(" Is Blank : " & command.IsBlank + Constants.vbLf & " Accuracy : " & (command.Accuracy * 1.0 / 100) & "%",
"Blank Page Detection Results", MessageBoxButton.OK)
image.Dispose()
End Sub
Help Collections
Raster .NET | C API | C++ Class Library | HTML5 JavaScript
Document .NET | C API | C++ Class Library | HTML5 JavaScript
Medical .NET | C API | C++ Class Library | HTML5 JavaScript
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Supported Platforms
.NET, Java, Android, and iOS/macOS Assemblies
Imaging, Medical, and Document
C API/C++ Class Libraries
Imaging, Medical, and Document
HTML5 JavaScript Libraries
Imaging, Medical, and Document
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