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AddMessageCommand Class

Summary

Adds a message (text or file) to the image. This command is available in the Document/Medical Toolkits.

Syntax

C#
VB
WinRT C#
C++
public class AddMessageCommand : RasterCommand 
function Leadtools.ImageProcessing.Effects.AddMessageCommand() 

Remarks
  • The purpose of this command is for security since the message added will be embedded into the image without any visible changes and the resulting image has the same size as the original.
  • This command can add a message to any type of lossless image such as BMP, TIFF, lossless JPEG, and so forth. If used with lossy format types the message may be corrupted or lost.
  • To extract the embedded message use ExtractMessageCommand.
  • This command supports 24-bit and 48-bits images, and 8-bit and 16-bits grayscale images
  • This command does not support 32-bit grayscale images.
Example

Run the AddMessageCommand on an image.

C#
VB
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Effects; 
 
public void AddMessageCommandExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "IMAGE1.CMP")); 
 
   // Prepare the command 
   AddMessageCommand command = new AddMessageCommand(); 
   command.Message = "LEAD Technologies, Inc."; 
   // Add the above message to 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); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; 
} 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.Effects 
      Leadtools.Examples.Support.SetLicense() 
 
Public Sub AddMessageCommandExample() 
   Dim codecs As New RasterCodecs() 
   codecs.ThrowExceptionsOnInvalidImages = True 
 
   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "IMAGE1.CMP")) 
 
   ' Prepare the command 
   Dim command As AddMessageCommand = New AddMessageCommand 
   command.Message = "LEAD Technologies, Inc." 
   ' Add the above message to 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) 
 
End Sub 
 
Public NotInheritable Class LEAD_VARS 
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" 
End Class 

Requirements

Target Platforms

Help Version 19.0.2017.10.18
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Leadtools.ImageProcessing.Effects Assembly