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ShrinkWrapCommand Class

Summary

Performs automated segmentation of a rectangular or circular area in the specified image using the specified threshold.

Syntax

C#
VB
Java
Objective-C
WinRT C#
C++
public class ShrinkWrapCommand : RasterCommand 
@interface LTShrinkWrapCommand : LTRasterCommand 
public class ShrinkWrapCommand extends RasterCommand 
function Leadtools.ImageProcessing.Core.ShrinkWrapCommand() 

Remarks

The result is applied to the image as a region. This function was designed specifically for CT/MRI images, to segment regions of cancer clusters.

  • Use MakeRegionEmpty to delete the resulting region.
  • The radius must not exceed the length of the image diagonal or the class will throw an Invalid Parameters exception and will not execute.
  • This command does not support 32-bit grayscale images.
  • This command supports signed/unsigned images.
Example

C#
VB
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Core; 
 
public void ShrinkWrapCommandExample() 
{ 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   //Load an image 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "IMAGE3.dcm")); 
 
   //Prepare the command 
   ShrinkWrapCommand command = new ShrinkWrapCommand(); 
 
   command.Threshold = 60; 
   command.Radius = 100; 
   command.Center = new LeadPoint(245, 230); 
   command.Flags = ShrinkWrapFlags.ShrinkRect | ShrinkWrapFlags.RgnSet;  
 
   //Apply  
   command.Run(image); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; 
} 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.Core 
 
Public Sub ShrinkWrapCommandExample() 
   Dim codecs As RasterCodecs = New RasterCodecs() 
   codecs.ThrowExceptionsOnInvalidImages = True 
 
   'Load an image 
   Dim image As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "IMAGE3.dcm")) 
 
   'Prepare the command 
   Dim command As ShrinkWrapCommand = New ShrinkWrapCommand() 
 
   command.Threshold = 60 
   command.Radius = 100 
   command.Center = New LeadPoint(245, 230) 
   command.Flags = ShrinkWrapFlags.ShrinkRect + ShrinkWrapFlags.RgnSet 
 
 
   'Apply  
   command.Run(image) 
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.Core Assembly