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

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ExtractMessageCommandクラス








メンバ 
imageが埋め込まれたメッセージを受け取るならば、imageからメッセージ(テキストまたはファイル)を抽出します。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。
オブジェクトモデル
構文
'Declaration
 
Public Class ExtractMessageCommand 
   Inherits Leadtools.ImageProcessing.RasterCommand
   Implements Leadtools.ImageProcessing.IRasterCommand 
'Usage
 
Dim instance As ExtractMessageCommand
public sealed class ExtractMessageCommand : Leadtools.ImageProcessing.IRasterCommand  
function Leadtools.ImageProcessing.Effects.ExtractMessageCommand()
解説
サンプル

埋め込まれたメッセージを受け取って、それからメッセージを抽出するimageをロードすることによって、imageの上でExtractMessageCommandを実行します。

Copy Code  
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing.Effects

   
Public Sub ExtractMessageCommandExample()
   Dim codecs As New RasterCodecs()
   codecs.ThrowExceptionsOnInvalidImages = True
   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "IMAGE1.CMP"))

   Dim addmessagecommand As AddMessageCommand = New AddMessageCommand
   addmessagecommand.Message = "LEAD Technologies, Inc."
   ' Add the above message to image in the default position and with the default password.
   addmessagecommand.Run(leadImage)
   ' Prepare the command

   Dim command As ExtractMessageCommand = New ExtractMessageCommand

   ' set password and start properties values same as AddMessageCommand values.
   command.Password = Nothing
   command.Start = New LeadPoint(0, 0)
   command.Directory = LEAD_VARS.ImagesDir

   ' Extract the message from the image in the default position and with the default password.
   command.Run(leadImage)
   codecs.Save(leadImage, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24)


   If (Not (IsNothing(command.Message))) Then
      MessageBox.Show(command.Message, "Extracted Message")
   ElseIf (Not (IsNothing(command.FileName))) Then
      MessageBox.Show(command.FileName, "Extracted File")
   End If

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.Effects;

      
public void ExtractMessageCommandExample()
{
   // Load an image
   RasterCodecs codecs = new RasterCodecs();
   codecs.ThrowExceptionsOnInvalidImages = true;
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"));

   // Prepare the command
   AddMessageCommand addmessageCommand = new AddMessageCommand();
   addmessageCommand.Password = null;
   addmessageCommand.Start = new LeadPoint(0, 0);
   addmessageCommand.Message = "LEAD Technologies, Inc.";
   // Add the above message to image in the default position and with the default password.
   addmessageCommand.Run(image);

   // Prepare the command
   ExtractMessageCommand command = new ExtractMessageCommand();

   // set password and start properties values same as AddMessageCommand values.
   command.Password    = null;
   command.Start = new LeadPoint(0, 0);
   command.Directory   = Path.Combine(LEAD_VARS.ImagesDir, "");

   // Extract the message from the image in the default position and with the default password.
   command.Run(image);
   codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24);

   if(command.Message != null && command.Message.Length != 0)
      MessageBox.Show(command.Message, "Extracted Message");
   else  if (command.FileName != null && command.FileName.Length != 0)
      MessageBox.Show(command.FileName, "Extracted File");


}

static class LEAD_VARS
{
public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}
必要条件

ターゲットプラットホーム

参照

参照

ExtractMessageCommandメンバ
Leadtools.ImageProcessing.Effects名前空間
AddMessageCommandクラス