LEADTOOLS画像処理(Leadtools.ImageProcessing.Coreアセンブリ)

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InvertedTextCommandクラス








メンバ 
1-ビット白黒のimageで、反転テキストの領域を見つけて、修正します。
オブジェクトモデル
構文
'Declaration
 
Public Class InvertedTextCommand 
   Inherits Leadtools.ImageProcessing.RasterCommand
   Implements Leadtools.ImageProcessing.IRasterCommand 
'Usage
 
Dim instance As InvertedTextCommand
public sealed class InvertedTextCommand : Leadtools.ImageProcessing.IRasterCommand  
@interface LTInvertedTextCommand : LTRasterCommand
public class InvertedTextCommand extends RasterCommand
function Leadtools.ImageProcessing.Core.InvertedTextCommand()
解説

このコマンドはドキュメント/メディカルのツールキットで利用できます。

詳細については、「1ビット画像のクリーンアップ」を参照してください。

LEADTOOLSのSilverlightバージョンにおいて、RasterImageオブジェクトのための画像データがSilverlight WriteableBitmapを用いて内部的に保存されるならば、この画像処理コマンドは失敗しますオブジェクト。詳細については、「Silverlightの画像処理コマンド限界」を参照してください。

サンプル

imageの上でInvertedTextCommandを実行します。

Copy Code  
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing.Core

Public WithEvents invertedTextCommand_S1 As InvertedTextCommand
   
Public Sub InvertedTextCommandExample()
   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_S1 = New InvertedTextCommand
   invertedTextCommand_S1.Flags = InvertedTextCommandFlags.UseDpi
   invertedTextCommand_S1.MaximumBlackPercent = 95
   invertedTextCommand_S1.MinimumBlackPercent = 70
   invertedTextCommand_S1.MinimumInvertHeight = 500
   invertedTextCommand_S1.MinimumInvertWidth = 5000

   invertedTextCommand_S1.Run(leadImage)

End Sub

Private Sub InvertedTextCommand_InvertedText_S1(ByVal sender As Object, ByVal e As InvertedTextCommandEventArgs) Handles invertedTextCommand_S1.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 InvertedTextCommandExample()
{
   // 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_S1);
   command.Flags         = InvertedTextCommandFlags.UseDpi;
   command.MaximumBlackPercent = 95;
   command.MinimumBlackPercent = 70;
   command.MinimumInvertHeight = 500;
   command.MinimumInvertWidth  = 5000;

   command.Run(image);

}

private void InvertedTextEvent_S1(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 InvertedTextCommandExample() {
   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_S1);
         command.flags = InvertedTextCommandFlags.useDpi;
         command.maximumBlackPercent = 95;
         command.minimumBlackPercent = 70;
         command.minimumInvertHeight = 500;
         command.minimumInvertWidth = 5000;

         command.run(image);
      }
   });
}

function InvertedTextEvent_S1(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 InvertedTextCommandExample()
{
   // 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_S1);
   command.Flags         = InvertedTextCommandFlags.UseDpi;
   command.MaximumBlackPercent = 95;
   command.MinimumBlackPercent = 70;
   command.MinimumInvertHeight = 500;
   command.MinimumInvertWidth  = 5000;

   command.Run(image);

}

private void InvertedTextEvent_S1(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 InvertedTextCommandExample(RasterImage image, Stream outStream)
{
   // Prepare the command
   InvertedTextCommand command = new InvertedTextCommand();
   command.InvertedText  += new EventHandler<InvertedTextCommandEventArgs>(InvertedTextEvent_S1);
   command.Flags         = InvertedTextCommandFlags.UseDpi;
   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_S1(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 InvertedTextCommandExample(ByVal image As RasterImage, ByVal outStream As Stream)
   ' Prepare the command
   Dim command As InvertedTextCommand = New InvertedTextCommand()
   AddHandler command.InvertedText, AddressOf InvertedTextEvent_S1
   command.Flags = InvertedTextCommandFlags.UseDpi
   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_S1(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
必要条件

ターゲットプラットホーム

参照

参照

InvertedTextCommandメンバ
Leadtools.ImageProcessing.Core名前空間
1ビット画像のクリーンアップ
SmoothCommandクラス
BorderRemoveCommandクラス
LineRemoveCommandクラス
InvertedPageCommandクラス
DotRemoveCommandクラス
HolePunchRemoveCommandクラス
HighQualityRotateCommandクラス
MinimumCommandクラス
MaximumCommandクラス
Leadtools.ImageProcessing.Effects.RegionHolesRemovalCommand