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InvertedTextCommand Constructor(InvertedTextCommandFlags,Int32,Int32,Int32,Int32)
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Leadtools.ImageProcessing.Core Namespace > InvertedTextCommand Class > InvertedTextCommand Constructor : InvertedTextCommand Constructor(InvertedTextCommandFlags,Int32,Int32,Int32,Int32)



flags
Flags that determine the behavior of the inverted text removal process.
minimumInvertWidth
The minimum width of an area that is considered to be inverted text. If the InvertedTextCommandFlags.UseDpi flag is set, units are in thousandths of an inch, otherwise units are in pixels.
minimumInvertHeight
The minimum height of an area that is considered to be inverted text. If the InvertedTextCommandFlags.UseDpi flag is set, units are in thousandths of an inch, otherwise units are in pixels.
minimumBlackPercent
The minimum percent of total pixels in an inverted text area that must be black. Areas with a lower percent of black pixels are not considered.
maximumBlackPercent
The maximum percent of total pixels in an inverted text area that must be black. Areas with a higher percent of black pixels are not considered.
Initializes a new InvertedTextCommand class object with explicit parameters.

Syntax

Visual Basic (Declaration) 
Public Function New( _
   ByVal flags As InvertedTextCommandFlags, _
   ByVal minimumInvertWidth As Integer, _
   ByVal minimumInvertHeight As Integer, _
   ByVal minimumBlackPercent As Integer, _
   ByVal maximumBlackPercent As Integer _
)
Visual Basic (Usage)Copy Code
Dim flags As InvertedTextCommandFlags
Dim minimumInvertWidth As Integer
Dim minimumInvertHeight As Integer
Dim minimumBlackPercent As Integer
Dim maximumBlackPercent As Integer
 
Dim instance As InvertedTextCommand(flags, minimumInvertWidth, minimumInvertHeight, minimumBlackPercent, maximumBlackPercent)
C++/CLI 
public:
InvertedTextCommand( 
   InvertedTextCommandFlags flags,
   int minimumInvertWidth,
   int minimumInvertHeight,
   int minimumBlackPercent,
   int maximumBlackPercent
)

Parameters

flags
Flags that determine the behavior of the inverted text removal process.
minimumInvertWidth
The minimum width of an area that is considered to be inverted text. If the InvertedTextCommandFlags.UseDpi flag is set, units are in thousandths of an inch, otherwise units are in pixels.
minimumInvertHeight
The minimum height of an area that is considered to be inverted text. If the InvertedTextCommandFlags.UseDpi flag is set, units are in thousandths of an inch, otherwise units are in pixels.
minimumBlackPercent
The minimum percent of total pixels in an inverted text area that must be black. Areas with a lower percent of black pixels are not considered.
maximumBlackPercent
The maximum percent of total pixels in an inverted text area that must be black. Areas with a higher percent of black pixels are not considered.

Example

Run the InvertedTextCommand on an image.

Visual BasicCopy Code
Public WithEvents invertedTextCommand_S2 As InvertedTextCommand
Public Sub InvertedTextConstructorExample()
   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
   invertedTextCommand_S2 = New InvertedTextCommand(InvertedTextCommandFlags.UseDpi, 5000, 500, 70, 95)
   invertedTextCommand_S2.Run(leadImage)

   RasterCodecs.Shutdown()
End Sub

Private Sub InvertedTextCommand_InvertedText_S2(ByVal sender As Object, ByVal e As InvertedTextCommandEventArgs) Handles invertedTextCommand_S2.InvertedText
   MessageBox.Show("Size " + "( " + e.BoundingRectangle.Left.ToString() + ", " + e.BoundingRectangle.Top.ToString() + ") - " + "( " + e.BoundingRectangle.Right.ToString() + ", " + e.BoundingRectangle.Bottom.ToString() + ")" + _
      Chr(13) + " Black Count " + e.BlackCount.ToString() + _
      Chr(13) + " White Count " + e.WhiteCount.ToString())
   e.Status = RemoveStatus.Remove
End Sub
C#Copy Code
public void InvertedTextConstructorExample() 
{ 
   // 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 
   InvertedTextCommand command = new InvertedTextCommand( InvertedTextCommandFlags.UseDpi, 5000, 500, 70, 95); 
   command.InvertedText += new EventHandler<InvertedTextCommandEventArgs>(InvertedTextEvent_S2); 
   command.Run(image); 
 
   RasterCodecs.Shutdown(); 
} 
 
private void InvertedTextEvent_S2(object sender, InvertedTextCommandEventArgs e) 
{ 
   MessageBox.Show("Size "           + "( " + e.BoundingRectangle.Left + ", " + e.BoundingRectangle.Top + ") - " + "( " + e.BoundingRectangle.Right + ", " + e.BoundingRectangle.Bottom + ")" + 
      "\n Black Count " + e.BlackCount.ToString() +  
      "\n White Count " + e.WhiteCount.ToString()); 
   e.Status = RemoveStatus.Remove; 
}

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