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




Extracts individual slices from a radiographic scanned film. This method is available in the Raster Pro and above toolkits.

Syntax

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

Example

Visual BasicCopy Code
ImageProcessing.Core.SliceCommand
   Public WithEvents sliceEventExample_S1 As SliceCommand
   Public Sub SliceCommandExample()
      RasterCodecs.Startup()
      Dim codecs As New RasterCodecs()
      codecs.ThrowExceptionsOnInvalidImages = True

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

      ' Prepare the command
      Dim cmd As New SliceCommand
      cmd.FillColor = New RasterColor(0, 0, 0)
      cmd.MaximumDeskewAngle = 40
      cmd.Flags = SliceCommandFlags.Bicubic Or SliceCommandFlags.WithoutCut Or SliceCommandFlags.DeskewImage

      ' Apply the slice command on the image.
      cmd.Run(leadImage)

      ' Print out the deskew amount.
      Console.WriteLine("Deskew Angle = {0}", cmd.DeskewAngle)

      RasterCodecs.Shutdown()
   End Sub

   Private Sub SliceEventExample_SliceCommand(ByVal sender As Object, ByVal e As SliceCommandEventArgs) Handles sliceEventExample_S1.Slice
      ' create a region around the slice
      If (e.Image.HasRegion) Then
         e.Image.AddRectangleToRegion(Nothing, e.SliceRectangle, RasterRegionCombineMode.Xor)
      Else
         e.Image.AddRectangleToRegion(Nothing, e.SliceRectangle, RasterRegionCombineMode.Set)
      End If

      ' print out the deskew angle
      Console.WriteLine("The rotation Amount is {0}", e.DeskewAngle)
   End Sub
C#Copy Code
ImageProcessing.Core.SliceCommand 
      public void SliceCommandExample() 
      { 
         // Load an image 
         RasterCodecs.Startup(); 
         RasterCodecs codecs = new RasterCodecs(); 
         codecs.ThrowExceptionsOnInvalidImages = true; 
 
         RasterImage image = codecs.Load(@"C:\Program Files\LEAD Technologies\LEADTOOLS 15\Images\Master.jpg"); 
 
         // Prepare the command 
         SliceCommand cmd = new SliceCommand(); 
         cmd.FillColor = new RasterColor(0, 0, 0); 
         cmd.MaximumDeskewAngle = 40; 
         cmd.Flags = SliceCommandFlags.Bicubic | SliceCommandFlags.WithoutCut | SliceCommandFlags.DeskewImage; 
         cmd.Slice += new EventHandler<SliceCommandEventArgs>(SliceEventExample_S1); 
 
         // Apply the slice command on the image. 
         cmd.Run(image); 
 
         // Print out the deskew amount. 
         Console.WriteLine("Deskew Angle = {0}", cmd.DeskewAngle); 
 
         RasterCodecs.Shutdown(); 
      } 
 
      private void SliceEventExample_S1(object sender, SliceCommandEventArgs e) 
      { 
         // create a region around the slice 
         if (e.Image.HasRegion) 
            e.Image.AddRectangleToRegion(null, e.SliceRectangle, Leadtools.RasterRegionCombineMode.Xor); 
         else 
            e.Image.AddRectangleToRegion(null, e.SliceRectangle, Leadtools.RasterRegionCombineMode.Set); 
 
         // print out the deskew angle 
         Console.WriteLine("The rotation Amount is {0}", e.DeskewAngle); 
      }

Remarks

  • .This command is designed to extract the individual slices from radiographic scanned film. The image below shows an example of these radiographic images before and after applying the SliceCommand where we use the output data to draw a white line around each separate slice.

    Before

    After
  • 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 method does not support signed data images.
  • This command does not support 32-bit grayscale images.

Inheritance Hierarchy

System.Object
   Leadtools.ImageProcessing.RasterCommand
      Leadtools.ImageProcessing.Core.SliceCommand

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