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TopMargin Property

Summary

Number of pixels to exclude from the Top of the image

Syntax

C#
VB
Java
Objective-C
WinRT C#
C++
public int TopMargin { get; set; } 
Public Property TopMargin As Integer 
public int TopMargin {get; set;} 
@property (nonatomic, assign) NSUInteger topMargin 
public int getTopMargin() 
public void setTopMargin(int value) 
             
 <br/>get_TopMargin();<br/>set_TopMargin(value);<br/>Object.defineProperty('TopMargin');  
public: 
property int TopMargin { 
   int get(); 
   void set (    int ); 
} 

Property Value

Number of pixels to exclude from the Top of the image. Possible values range from 0 to the image's height, in pixels.

Example

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

C#
VB
Silverlight C#
Silverlight VB
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 
      Leadtools.Examples.Support.SetLicense() 
 
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 
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(); 
} 
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 

Requirements

Target Platforms

Help Version 19.0.2017.10.27
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Leadtools.ImageProcessing.Core Assembly