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SliceCommand Class

Extracts individual slices from a radiographic scanned film. This method is available in the Imaging Pro and above toolkits.
public class SliceCommand : RasterCommand 
Public Class SliceCommand  
   Inherits RasterCommand 
public ref class SliceCommand : public RasterCommand   
  • .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.


  • 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.

This event will draw a new region around the newly found slice.

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Core; 
public void SliceCommandExample() 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "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. 
   // Print out the deskew amount. 
   Console.WriteLine("Deskew Angle = {0}", cmd.DeskewAngle); 
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); 
      e.Image.AddRectangleToRegion(null, e.SliceRectangle, Leadtools.RasterRegionCombineMode.Set); 
   // print out the deskew angle 
   Console.WriteLine("The rotation Amount is {0}", e.DeskewAngle); 
static class LEAD_VARS 
   public const string ImagesDir = @"C:\LEADTOOLS21\Resources\Images"; 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.Core 
Public WithEvents sliceEventExample_S1 As SliceCommand 
Public Sub SliceCommandExample() 
   Dim codecs As New RasterCodecs() 
   codecs.ThrowExceptionsOnInvalidImages = True 
   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "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. 
   ' Print out the deskew amount. 
   Console.WriteLine("Deskew Angle = {0}", cmd.DeskewAngle) 
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) 
      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 
Public NotInheritable Class LEAD_VARS 
   Public Const ImagesDir As String = "C:\LEADTOOLS21\Resources\Images" 
End Class 

Target Platforms

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Leadtools.ImageProcessing.Core Assembly