Leadtools.ImageProcessing.Core Send comments on this topic. | Back to Introduction - All Topics | Help Version 15.12.10
ConvertSignedToUnsignedCommand Class
See Also  Members   Example 
Leadtools.ImageProcessing.Core Namespace : ConvertSignedToUnsignedCommand Class




Converts a signed image to unsigned.

Syntax

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

Example

Visual BasicCopy Code
ImageProcessing.Core.ConvertSignedToUnsignedCommand
   Public Sub ConvertSignedToUnsignedCommandExample()
      RasterCodecs.Startup()
      Dim codecs As New RasterCodecs()
      codecs.ThrowExceptionsOnInvalidImages = True

      Dim leadImage As RasterImage = codecs.Load("C:\Program Files\LEAD Technologies\LEADTOOLS 15\Images\IMAGE2.dic")

      ' Prepare the command
      Dim command As ConvertSignedToUnsignedCommand = New ConvertSignedToUnsignedCommand
      command.Type = ConvertSignedToUnsignedCommandType.ShiftNegativeToZero
      'convert image to unsigned.
      command.Run(leadImage)

      RasterCodecs.Shutdown()
   End Sub
C#Copy Code
ImageProcessing.Core.ConvertSignedToUnsignedCommand 
      public void ConvertSignedToUnsignedCommandExample() 
      { 
         // Load an image 
         RasterCodecs.Startup(); 
         RasterCodecs codecs = new RasterCodecs(); 
         codecs.ThrowExceptionsOnInvalidImages = true; 
 
         RasterImage image = codecs.Load(@"C:\Program Files\LEAD Technologies\LEADTOOLS 15\Images\IMAGE2.dic"); 
 
         // Prepare the command 
         ConvertSignedToUnsignedCommand command = new ConvertSignedToUnsignedCommand(); 
         command.Type   = ConvertSignedToUnsignedCommandType.ShiftNegativeToZero; 
         //convert image to unsigned. 
         command.Run(image); 
 
         RasterCodecs.Shutdown(); 
      }

Remarks

  • The image may contain negative pixel values and LEADTOOLS will paint/process the image incorrectly. To use this image correctly the negative pixels should be converted, if it contains negative pixels (if Signed is True).
  • If the Signed is set to True, this method will shift the color values in the image according to Type property.
  • The method will also update the MinValue and MaxValue properties of the RasterImage.
  • .
  • This method supports 12 and 16-bit grayscale and 48 and 64-bit color images. Support for 12 and 16-bit grayscale and 48 and 64-bit color images is available only in the Document/Medical toolkits.
  • This command does not support 32-bit grayscale images.
For more information, refer to Processing an Image.

Inheritance Hierarchy

System.Object
   Leadtools.ImageProcessing.RasterCommand
      Leadtools.ImageProcessing.Core.ConvertSignedToUnsignedCommand

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