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ConvertUnsignedToSignedCommand Class
See Also  Members   Example 
Leadtools.ImageProcessing.Core Namespace : ConvertUnsignedToSignedCommand Class



Converts an unsigned image to signed.

Syntax

Visual Basic (Declaration) 
Public Class ConvertUnsignedToSignedCommand 
   Inherits RasterCommand
   Implements IRasterCommand 
Visual Basic (Usage)Copy Code
Dim instance As ConvertUnsignedToSignedCommand
C# 
public class ConvertUnsignedToSignedCommand : RasterCommand, IRasterCommand 
C++/CLI 
public ref class ConvertUnsignedToSignedCommand : public RasterCommand, IRasterCommand 

Example

Run the ConvertUnsignedToSignedCommand on an image. The passed image must be Unsigned image.

Visual BasicCopy Code
Public Sub ConvertUnsignedToSignedCommandExample()
   RasterCodecs.Startup()
   Dim codecs As New RasterCodecs()
   codecs.ThrowExceptionsOnInvalidImages = True

   Dim leadImage As RasterImage = codecs.Load(LeadtoolsExamples.Common.ImagesPath.Path + "Master.jpg")

   ' Prepare the command
   Dim command As ConvertUnsignedToSignedCommand = New ConvertUnsignedToSignedCommand
   command.Type = ConvertUnsignedToSignedCommandType.ProcessRangeOnly
   'convert image to signed.
   command.Run(leadImage)

   RasterCodecs.Shutdown()
End Sub
C#Copy Code
public void ConvertUnsignedToSignedCommandExample() 
{ 
   // Load an image 
   RasterCodecs.Startup(); 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(LeadtoolsExamples.Common.ImagesPath.Path + "Master.jpg"); 
 
   // Prepare the command 
   ConvertUnsignedToSignedCommand command = new ConvertUnsignedToSignedCommand(); 
   command.Type   = ConvertUnsignedToSignedCommandType.ProcessRangeOnly; 
   //convert image to signed. 
   command.Run(image); 
 
   RasterCodecs.Shutdown(); 
}

Remarks

  • This class updates the minimum and maximum values of the image with new values that consider the image's new signed values.
  • This class supports 12 and 16-bit grayscale images. Support for 12 and 16-bit grayscale images is available only in the Document/Medical toolkits.
  • This command does not support 32-bit grayscale images.

Inheritance Hierarchy

System.Object
   Leadtools.ImageProcessing.RasterCommand
      Leadtools.ImageProcessing.Core.ConvertUnsignedToSignedCommand

Requirements

Target Platforms: Microsoft .NET Framework 2.0, Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

See Also