Initializes a new InvertedTextCommand class object with explicit parameters.
Supported in Silverlight, Windows Phone 7
Syntax
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 Basic | Copy Code |
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Public WithEvents invertedTextCommand_S2 As InvertedTextCommand
Public Sub InvertedTextConstructorExample()
Dim codecs As New RasterCodecs()
codecs.ThrowExceptionsOnInvalidImages = True
Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Clean.tif"))
' Prepare the command
invertedTextCommand_S2 = New InvertedTextCommand(InvertedTextCommandFlags.UseDpi, 5000, 500, 70, 95)
invertedTextCommand_S2.Run(leadImage)
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
Public NotInheritable Class LEAD_VARS
Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class |
C# | Copy Code |
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public void InvertedTextConstructorExample()
{
// Load an image
RasterCodecs codecs = new RasterCodecs();
codecs.ThrowExceptionsOnInvalidImages = true;
RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "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);
}
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;
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
} |
SilverlightCSharp | Copy Code |
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public void InvertedTextConstructorExample(RasterImage image, Stream outStream)
{
// Prepare the command
InvertedTextCommand command = new InvertedTextCommand( InvertedTextCommandFlags.UseDpi, 5000, 500, 70, 95);
command.InvertedText += new EventHandler<InvertedTextCommandEventArgs>(InvertedTextEvent_S2);
command.Run(image);
// Save result image
RasterCodecs codecs = new RasterCodecs();
codecs.Save(image, outStream, RasterImageFormat.CcittGroup4, 1);
image.Dispose();
}
private void InvertedTextEvent_S2(object sender, InvertedTextCommandEventArgs e)
{
Debug.WriteLine("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;
} |
SilverlightVB | Copy Code |
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Public Sub InvertedTextConstructorExample(ByVal image As RasterImage, ByVal outStream As Stream)
' Prepare the command
Dim command As InvertedTextCommand = New InvertedTextCommand(InvertedTextCommandFlags.UseDpi, 5000, 500, 70, 95)
AddHandler command.InvertedText, AddressOf InvertedTextEvent_S2
command.Run(image)
' Save result image
Dim codecs As RasterCodecs = New RasterCodecs()
codecs.Save(image, outStream, RasterImageFormat.CcittGroup4, 1)
image.Dispose()
End Sub
Private Sub InvertedTextEvent_S2(ByVal sender As Object, ByVal e As InvertedTextCommandEventArgs)
Debug.WriteLine("Size " & "( " & e.BoundingRectangle.Left & ", " & e.BoundingRectangle.Top & ") - " & "( " & e.BoundingRectangle.Right & ", " & e.BoundingRectangle.Bottom & ")" & Constants.vbLf & " Black Count " & e.BlackCount.ToString() & Constants.vbLf & " White Count " & e.WhiteCount.ToString())
e.Status = RemoveStatus.Remove
End Sub |
Requirements
Target Platforms: Silverlight 3.0, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7, MAC OS/X (Intel Only)
See Also