LEADTOOLS Image Processing (Leadtools.ImageProcessing.Core assembly)

ImageRegion Property (InvertedTextCommand)

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Example 







Leadtools.ImageProcessing.Core Namespace > InvertedTextCommand Class : ImageRegion Property
This property is updated with a shallow copy of the image that also has a region that contains the removed inverted text.
Syntax
public RasterImage ImageRegion {get;}
'Declaration
 
Public ReadOnly Property ImageRegion As RasterImage
'Usage
 
Dim instance As InvertedTextCommand
Dim value As RasterImage
 
value = instance.ImageRegion
public RasterImage ImageRegion {get;}
@property (nonatomic, strong, readonly) LTRasterImage* imageRegion;

public RasterImage getImageRegion()

 get_ImageRegion(); 
public:
property RasterImage^ ImageRegion {
   RasterImage^ get();
}

Property Value

A shallow copy of the image that also has a region that contains the removed inverted text.
Remarks
If InvertedTextCommandFlags.SingleRegion| InvertedTextCommandFlags.LeadRegion has been set in the Flags property, then when InvertedTextCommand returns, this property is updated with a shallow copy of the image that also has a region that contains the removed inverted text. So set the InvertedTextCommandFlags.SingleRegion| InvertedTextCommandFlags.LeadRegion flags. Dispose of the region when it is no longer needed.
Example
Copy Code   
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing.Core

Public WithEvents invertedTextCommand_S3 As InvertedTextCommand
Public Sub ImageRegionPropertyExample()
   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_S3 = New InvertedTextCommand
   invertedTextCommand_S3.Flags = InvertedTextCommandFlags.UseDpi Or InvertedTextCommandFlags.LeadRegion Or InvertedTextCommandFlags.SingleRegion
   invertedTextCommand_S3.MaximumBlackPercent = 95
   invertedTextCommand_S3.MinimumBlackPercent = 70
   invertedTextCommand_S3.MinimumInvertHeight = 500
   invertedTextCommand_S3.MinimumInvertWidth = 5000
   invertedTextCommand_S3.Run(leadImage)

End Sub

Private Sub InvertedTextCommand_InvertedText_S3(ByVal sender As Object, ByVal e As InvertedTextCommandEventArgs) Handles invertedTextCommand_S3.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
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Core;

public void ImageRegionPropertyExample()
{
   // 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();
   command.InvertedText += new EventHandler<InvertedTextCommandEventArgs>(InvertedTextEvent_S3);
   command.Flags = InvertedTextCommandFlags.UseDpi | InvertedTextCommandFlags.SingleRegion | InvertedTextCommandFlags.LeadRegion;
   command.MaximumBlackPercent = 95;
   command.MinimumBlackPercent = 70;
   command.MinimumInvertHeight = 500;
   command.MinimumInvertWidth  = 5000;
   command.Run(image);

}

private void InvertedTextEvent_S3(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";
}
function ImageRegionPropertyExample() {
   var codecs = new Leadtools.Codecs.RasterCodecs();
   codecs.throwExceptionsOnInvalidImages = true;

   // Load the image
   var srcFileName = "Assets\\clean.tif";
   return Tools.AppInstallFolder().getFileAsync(srcFileName).then(function (loadFile) {
      return codecs.loadAsync(Leadtools.LeadStreamFactory.create(loadFile));
   }).then(function (image) {
      // Prepare the command
      with (Leadtools.ImageProcessing.Core) {
         var command = new InvertedTextCommand();
         command.addEventListener("invertedtext", InvertedTextEvent_S3);
         command.flags = InvertedTextCommandFlags.useDpi | InvertedTextCommandFlags.singleRegion | InvertedTextCommandFlags.leadRegion;
         command.maximumBlackPercent = 95;
         command.minimumBlackPercent = 70;
         command.minimumInvertHeight = 500;
         command.minimumInvertWidth = 5000;
         command.run(image);
      }
   });
}

function InvertedTextEvent_S3(e) {
   console.error("Size " + "( " + e.boundingRectangle.x + ", " + e.boundingRectangle.y + ") - " + "( " + e.boundingRectangle.width + ", " + e.boundingRectangle.height + ")" +
      "\n Black Count " + e.blackCount.toString() +
      "\n White Count " + e.whiteCount.toString());
   e.status = Leadtools.ImageProcessing.Core.RemoveStatus.remove;
}
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Core;

      
public async Task ImageRegionPropertyExample()
{
   // Load an image
   RasterCodecs codecs = new RasterCodecs();
   codecs.ThrowExceptionsOnInvalidImages = true;
   // Load the image
   string srcFileName = @"Assets\Clean.tif";
   StorageFile loadFile = await Tools.AppInstallFolder.GetFileAsync(srcFileName);
   RasterImage image = await codecs.LoadAsync(LeadStreamFactory.Create(loadFile));

   // Prepare the command
   InvertedTextCommand command = new InvertedTextCommand();
   command.InvertedText += new EventHandler<InvertedTextCommandEventArgs>(InvertedTextEvent_S3);
   command.Flags = InvertedTextCommandFlags.UseDpi | InvertedTextCommandFlags.SingleRegion | InvertedTextCommandFlags.LeadRegion;
   command.MaximumBlackPercent = 95;
   command.MinimumBlackPercent = 70;
   command.MinimumInvertHeight = 500;
   command.MinimumInvertWidth  = 5000;
   command.Run(image);

}

private void InvertedTextEvent_S3(object sender, InvertedTextCommandEventArgs e)
{
   Debug.WriteLine("Size "           + "( " + e.BoundingRectangle.X + ", " + e.BoundingRectangle.Y + ") - " + "( " + e.BoundingRectangle.Width + ", " + e.BoundingRectangle.Height + ")" +
      "\n Black Count " + e.BlackCount.ToString() + 
      "\n White Count " + e.WhiteCount.ToString());
   e.Status = RemoveStatus.Remove;
}
using Leadtools;
using Leadtools.Examples;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Core;

public void ImageRegionPropertyExample(RasterImage image, Stream outStream)
{
   // Prepare the command
   InvertedTextCommand command = new InvertedTextCommand();
   command.InvertedText += new EventHandler<InvertedTextCommandEventArgs>(InvertedTextEvent_S3);
   command.Flags = InvertedTextCommandFlags.UseDpi | InvertedTextCommandFlags.SingleRegion | InvertedTextCommandFlags.LeadRegion;
   command.MaximumBlackPercent = 95;
   command.MinimumBlackPercent = 70;
   command.MinimumInvertHeight = 500;
   command.MinimumInvertWidth  = 5000;
   command.Run(image);
   // Save result image
   RasterCodecs codecs = new RasterCodecs();
   codecs.Save(image, outStream, RasterImageFormat.CcittGroup4, 1);
   image.Dispose();
}

private void InvertedTextEvent_S3(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;
}
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing.Core

Public Sub ImageRegionPropertyExample(ByVal image As RasterImage, ByVal outStream As Stream)
   ' Prepare the command
   Dim command As InvertedTextCommand = New InvertedTextCommand()
   AddHandler command.InvertedText, AddressOf InvertedTextEvent_S3
   command.Flags = InvertedTextCommandFlags.UseDpi Or InvertedTextCommandFlags.SingleRegion Or InvertedTextCommandFlags.LeadRegion
   command.MaximumBlackPercent = 95
   command.MinimumBlackPercent = 70
   command.MinimumInvertHeight = 500
   command.MinimumInvertWidth = 5000
   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_S3(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

See Also

Reference

InvertedTextCommand Class
InvertedTextCommand Members

 

 

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